PrepSKA WP2 Meeting Software and Computing. Duncan Hall 2011-October-19
|
|
- Clarissa Edwards
- 5 years ago
- Views:
Transcription
1 PrepSKA WP2 Meeting Software and Computing Duncan Hall 2011-October-19
2 Imaging context 1 of 2: 2
3 Imaging context 2 of 2: 3
4 Agenda: - Progress since 2010 October - CoDR approach and expectations - Presentation from Tim Cornwell - Presentation from Paul Alexander
5 Progress: SKA Memo 128 Cornwell and Humphreys, 2010 October SKA Exascale Software Challenges HPC Challenges and Lessons Learned from ASKAP: Streaming vs. Batch Processing Software Stack Maturity The Processor-Memory Gap Co-Design in ASKAP and SKA
6 Progress: SKA Memo 132 Humphreys and Cornwell, 2011 January Analysis of Convolutional Resampling Algorithm Performance Gridding as a significant component of processing Benchmarking: Performance vs. required gridding function size Power considerations Processing and related requirements Analysis of algorithm performance Options for optimisation
7 Progress: sharing challenges CALIM 2011, hosted by SPDO Presentation slides and Webcam videos available at: Liaising with partners and potential partners from industry Industry Meeting, Banff 2011 July
8 Addressing SKA 1 scale complications Reduce data rate offered to HPC Wait for HPC capabilities/cost to catch up Improve efficiency of algorithms Addressed by Tim Cornwell
9 Progress: DRM 1.3 implications for S&C requirements Addressed by Paul Alexander
10 Agenda: - Progress since 2010 October - CoDR approach and expectations - Presentation from Tim Cornwell - Presentation from Paul Alexander
11 Agreed CoDR document set: Initial subsystem requirements High level architecture (incl. options): Hardware Software Risk register (incl. proposed mitigations) Software engineering processes Strategy to proceed to next phase Reference documents
12 Agenda: - Progress since 2010 October - CoDR approach and expectations - Presentation from Tim Cornwell - Presentation from Paul Alexander
13 Wide field imaging Quadratic phase term added to Fourier Transform V(u,v,w) = I(l,m)e j 2π w ( 1 l2 m 2 ) 1 1 l 2 m 2 e j 2π ( ul +vm ) dldm Convolution in data space Multiplication in image space Slices in data space SKA WP Wednesday, 19 October 11
14 Wednesday, 19 October 11 R F = Θ 2 FOV Θ res
15 Snapshot imaging (Bracewell; MWA) Instantaneously arrays are mostly coplanar ( V A ' B = I(l, m)e 2π j ul +vm+w 1 l2 m ) 2 dldm V A ' B = I(l, m)e 2π j u l a 1 l2 m 2 1 l 2 m 2 ( ) ( +v m b 1 l2 m ) 2 ( ) dldm 1 l 2 m 2 Grid on two dimensional plane, FFT, correct for coordinate distortion Gridding cost much lower, but need to correct image every integration Combine snapshot imaging with AWProjection Fit plane to instantaneous u,v,w sampling Use AWProjection to project down onto fitted u,v plane Set threshold in w e.g. 30% of maximum w Refit plane when error in fit exceeds that threshold SKA WP w as a function of u,v and hour angle +/- 4 hours T awprojection R F 2 T snapshot R F / T hybrid R F 4 /3 ΔA Wednesday, 19 October 11
16 Position and width errors in snapshot imaging SKA WP Wednesday, 19 October 11
17 Position and width in w projection/snapshot imaging SKA WP Wednesday, 19 October 11
18 Optimum transition point in hybrid algorithm AW projection Snapshot imaging SKA WP Wednesday, 19 October 11
19 Why do we need hybrid wide field algorithms? Trade off space is large Scientific performance CPU Wall clock time Memory Memory bandwidth No single wide field algorithm will suffice Need very flexible hybrids AW Projection W Stacking Snapshot imaging Faceting Autotuning SKA WP Wednesday, 19 October 11
20 Changes in imaging during scaling work AWProject (2007) Convolution W projection + A projection (for primary beam) Too much CPU Too much memory for convolution function AProjectWStack (2008) Apply W term in image space Much less CPU Too much memory for w stack Convolution/Multiplication AWProject + trimmed convolution function (2009) Only apply and keep non-zero part of convolution function Still too much memory for convolution function AWProject + trimmed convolution function + multiple snapshot planes (2011) Fit and remove w=au+bv plane every min Convolution + slices Small memory for convolution function Serialise normal equations piece-by-piece for MPI (2011) Cuts down short bump in memory use Convolution No current algorithm will scale as-is to full-field longer baselines (ASKAP 6km) SKA WP Wednesday, 19 October 11
21 ASKAP imaging scaling curve SKA WP Wednesday, 19 October 11
22 Computing costs Scale with data rate Time averaging and bandwidth smearing vital unknown factor Scale with some power of the Fresnel Scale Optimise algorithms for scaling power and scaling factor Constrained by scientific performance e.g. smearing, astrometry Back of the envelope arguments can be wrong by large factors And omit important effects such as the role of errors Time for careful analysis SKA WP Wednesday, 19 October 11
23 Telescope design DRM Measurement Equation Science requirements Science processing Computing hardware and software Computing costs Computing budget Wednesday, 19 October 11
24 Software and Computing Example DRM Analysis Paul Alexander Paul Alexander Software and Computing: DRM Analysis
25 EoR Imaging Illustrate analysis by considering EoR Imaging Analysis is to derive detailed input requirements to the S&C domain Analysis is based on DRM 1.3 some questions already answered Will not, and not yet in a position, to do a detailed analysis of the pipeline required and the full computational and monetary cost Input requirement are: Data rate to process Nature of the input data Data products required Paul Alexander Software and Computing: DRM Analysis
26 Calculate data rate here from correlator to Injest pipeline System concept for analysis Paul Alexander Software and Computing: DRM Analysis
27 EoR Imaging DRM Requirements Science Requirements from the DRM Parameter Value Comment Redshift coverage 6 30 Brightness temperature 1 3 mk sensitivity Angular resolution 2 5 Radial resolution 2 Mpc Field of view > 5 deg Set by cosmic variance Paul Alexander Software and Computing: DRM Analysis
28 EoR Imaging DRM Requirements Technical Requirements from the DRM Parameter Value Comment Frequency range MHz Critical frequency 100 MHz Frequency resolution 100 khz Bandwidth Df/f ~ 1 RFI excision is critical and may need high resolution ~ 1 khz Cover complete frequency range in each observation Maximum baseline (core) 5km To provide angular resolution Baseline source subtraction Paul Alexander ~200km Integration time >1000 hrs Set by cosmic variance A/T >1000 m 2 K -1 Antenna diameter 7m 30m Core UV coverage N d > 160 Software and Computing: DRM Analysis
29 Analysis Channel requirements Straight forward 1.7 x 10 5 at 1 khz resolution for RFI excision 1.7 x 10 3 in the final data products Data rate drops by this factor after the injest pipeline Paul Alexander Software and Computing: DRM Analysis
30 Analysis Sensitivity and Collector distribution Requirement: 10mK in a 5 beam and 3.3mK in a 2 beam From SYS_REQ_1310 the requirement is that A/T = 1000 m 2 K -1 across the MHz band of the AA-low. Translated in Memo 130 as a total collecting area of 1.25x10 6 m 2 distributed in m stations with a distribution of: Core (r <0.5 km) ~50% (25 stations) 6.25 x 10 5 m 2 f = 0.81 Inner (1< r<2.5 km) ~20% (10 stations) 2.5 x 10 5 m 2 Mid (2.5<r<100 km) ~30% (15 stations) 3.75 x 10 5 m 2 Paul Alexander Software and Computing: DRM Analysis
31 Sensitivity and Collector distribution Analysis High filling factor in core means flexibility in logical configuration Very important to meet EoR requirement Extensibility to SKA2 gives filling factor ~1 in inner region Resolution: 2 corresponds to ~ 6km at 70MHz 2 corresponds to ~ 2.5 km at 240MHz N.B. would still need beam forming across the full band DRM1.3 matches station diameter to 5 degree FoV giving D = 30m In Inner region: N ~ 1200, but data rate scales as N 2 Adopt instead requirement on UV coverage and take m stations Beyond 2.5km 85 70m stations or m stations Paul Alexander Software and Computing: DRM Analysis
32 Dynamic Range Analysis DRM1.3 gives the flux densities of the faintest EoR structures to be imaged: ~0.3mJy/Beam (1σ) at 100 MHz. N.B. may need to consider more sophisticated definition of dynamic range Jonathan made the point yesterday, source contamination is worse than smooth foregrounds in a 25 sq-degree field an order of magnitude estimate would suggest that we would expect to find a 3C brightness object even by selecting a region with no 3C-like source, consideration of the source counts suggest it seems very likely that the field will still be contaminated by a number of sources with a flux > 1Jy This implies a dynamic range requirement of >65dB. This simple analysis needs to be verified. Paul Alexander Software and Computing: DRM Analysis
33 Correlator Output Data Rates For imaging, after correlation the data rate is fixed by straightforward considerations Must sample fast enough (limit on integration time) δt Baseline B/λ UV (Fourier) cell size D/λ max Β/λ Β/(λ+δλ) Must have small-enough channel width to avoid chromatic aberration max Ωδt Paul Alexander Software and Computing: DRM Analysis
34 Correlator Output Data Rates Adopt criteria similar to EVLA but using isotropic smoothing kernal in UV-plane Data rate then given by # antennas # polarizations # beams word-length Can reduce this through the injest pipeline using additional smoothing or baseline-dependent integration times and channel widths Paul Alexander Software and Computing: DRM Analysis
35 S&C Requirements N D = 200 N ch = 1.7 x 10 5 N b = 16 B max = 5km G out (RFI) = 27.5 GB/s G out = 275 MB/s δt = 18 s N ch = 1.7 x 10 5 AA with 45 degree scan allows 5hr track per day 1000 hr total interation gives 200 days Each observation is 500 TB UV data (1kHz) reducing to 5 TB 150 GB per day of processed data cube at 100 khz channels Do we need to store UV data until complete 1000 hr integration complete? Some analysis approaches will require this N.B. 200 times larger for 30-m logical stations Paul Alexander Software and Computing: DRM Analysis
36 S&C Requirements long baselines 75-m station G out (RFI) = 2500 GB/s G out = 250 GB/s dt = 0.45 s N ch = 1.9 x m station G out (RFI) = 187 GB/s G out = 8.9 GB/s dt = 1.08 s N B = 67 N ch = 7.9 x 10 3 Even for 180m station with 200 km baselines full imaging 160 TB of UV data per 5-hr track Image product 16k x 16k x 6k (24 TB per field) with 133 fields For 25 km baseline 2k x 2k x 1k (64 GB) per field 133 fields Precise requirements for the calibration and source subtraction need careful consideration as they could drive requirements for S&C domain and hence SKA Paul Alexander Software and Computing: DRM Analysis
37 Conclusions Analysis of the DRM naturally raises questions which would not occur to the authors of the science case until the analysis is done Can dominate the requirements Suggest joint teams of Science WG + Domain input to speed up the process of convergence to SRR Paul Alexander Software and Computing: DRM Analysis
The Imaging Characteristics of an Array with. L. Kogan 1. January 28, Abstract
MMA Memo 247: The Imaging Characteristics of an Array with Minimum Side Lobes. I. L. Kogan 1 (1) - National Radio Astronomy Observatory, Socorro, New Mexico, USA January 28, 1999 Abstract Dierent congurations
More informationWP WBS 001. Signal Transport & Networks PrepSKA Work Breakdown Structure
WP2.7.00.00 WBS 001 Signal Transport & Networks PrepSKA Work Breakdown Structure DOCUMENT NUMBER WP2.7.00.00-WBS-001-C REVISION C AUTHOR R. MCCOOL DATE 2009-11-11 Name Designation Affiliation Date Signature
More informationDeliverable 2.17 Periodic WP2 Progress Report 3
Deliverable 2.17 Periodic WP2 Progress Report 3 1.1 Objectives of WP2 WP2 is the main SKA design activity; it was aimed at producing a costed top-level design for the SKA and a detailed system design for
More information12 June 2007 Version 1.1. Memo 93
12 June 2007 Version 11 Memo 93 SKADS Benchmark Scenario Design and Costing Paul Alexander Rosie Bolton Andrew Faulkner Steve Torchinsky Arnold van Ardenne Peter Wilkinson Marco de Vos Laurens Bakker Simon
More informationPHGN 480 Laser Physics Lab 4: HeNe resonator mode properties 1. Observation of higher-order modes:
PHGN 480 Laser Physics Lab 4: HeNe resonator mode properties Due Thursday, 2 Nov 2017 For this lab, you will explore the properties of the working HeNe laser. 1. Observation of higher-order modes: Realign
More informationEVLA Fiber Selection Critical Design Review
EVLA Fiber Selection Critical Design Review December 5, 2001 SJD/TAB 1 Fiber Selection CDR Decision about what fiber to install Select cable Jan 2002 Order cable Jan 2002 Receive cable May 2002 Start installation
More informationBEAMFORMING AND CALIBRATION ARCHITECTURES USING THE CASPER SYSTEM
MCCT-SKADS Technical Workshop The SKA and Digital Signal Processing 9 th - 13 th November 2009, The University of Manchester, UK BEAMFORMING AND CALIBRATION ARCHITECTURES USING THE CASPER SYSTEM Giovanni
More informationMinimize your cost for Phased Array & TOFD
Minimize your cost for Phased Array & TOFD Latest ultrasonic flaw detector from SIUI, incorporates the latest advancements in Encoder In/Out UT/ TOFD Probe high-performance Phased Array and TOFD detection
More informationTelescope Concepts for Very Large Arrays. John D Bunton Workshop on Novel Telescopes for 21cm Cosmology June 2011
Telescope Concepts for Very Large Arrays John D Bunton Workshop on Novel Telescopes for 21cm Cosmology 12-16 June 2011 Early Radio Astronomy L Parkes 64m 1961 Power meter Sea Cliff Interferometer 1948
More informationPractical Application of the Phased-Array Technology with Paint-Brush Evaluation for Seamless-Tube Testing
ECNDT 2006 - Th.1.1.4 Practical Application of the Phased-Array Technology with Paint-Brush Evaluation for Seamless-Tube Testing R.H. PAWELLETZ, E. EUFRASIO, Vallourec & Mannesmann do Brazil, Belo Horizonte,
More informationThe CHIME Pathfinder and Correlator. Matt Dobbs for the CHIME Collaboration
The CHIME Pathfinder and Correlator Matt Dobbs for the CHIME Collaboration Intense Competitive Sports Atmosphere in BC Bridge tournament taking place this week at the Days Inn, Penticton. Matt.Dobbs@McGill.ca,
More informationA Parametric Autoregressive Model for the Extraction of Electric Network Frequency Fluctuations in Audio Forensic Authentication
Proceedings of the 3 rd International Conference on Control, Dynamic Systems, and Robotics (CDSR 16) Ottawa, Canada May 9 10, 2016 Paper No. 110 DOI: 10.11159/cdsr16.110 A Parametric Autoregressive Model
More informationL-band RFI from VoIP phones.
EVLA Memo 99 1 Summary. L-band RFI from VoIP phones. V. Dhawan, D. Mertely 2006 January Using the VLA in spectral line mode, we measured the RFI from a phone (NEC D-Term) placed temporarily in the vertex
More informationA Parametric Autoregressive Model for the Extraction of Electric Network Frequency Fluctuations in Audio Forensic Authentication
Journal of Energy and Power Engineering 10 (2016) 504-512 doi: 10.17265/1934-8975/2016.08.007 D DAVID PUBLISHING A Parametric Autoregressive Model for the Extraction of Electric Network Frequency Fluctuations
More informationTransitHound Cellphone Detector User Manual Version 1.3
TransitHound Cellphone Detector User Manual Version 1.3 RF3 RF2 Table of Contents Introduction...3 PC Requirements...3 Unit Description...3 Electrical Interfaces...4 Interface Cable...5 USB to Serial Interface
More informationAn Introduction to TrueSource
An Introduction to TrueSource 2010, Prism Projection Inc. The Problems With the growing popularity of high intensity LED luminaires, the inherent problems with LEDs have become a real life concern for
More informationHigh Performance Raster Scan Displays
High Performance Raster Scan Displays Item Type text; Proceedings Authors Fowler, Jon F. Publisher International Foundation for Telemetering Journal International Telemetering Conference Proceedings Rights
More informationWhat s New in Raven May 2006 This document briefly summarizes the new features that have been added to Raven since the release of Raven
What s New in Raven 1.3 16 May 2006 This document briefly summarizes the new features that have been added to Raven since the release of Raven 1.2.1. Extensible multi-channel audio input device support
More informationFeedback Control of SPS E-Cloud/TMCI Instabilities
Feedback Control of SPS E-Cloud/TMCI Instabilities C. H. Rivetta 1 LARP Ecloud Contributors: A. Bullitt 1, J. D. Fox 1, T. Mastorides 1, G. Ndabashimiye 1, M. Pivi 1, O. Turgut 1, W. Hofle 2, B. Savant
More informationMajor Differences Between the DT9847 Series Modules
DT9847 Series Dynamic Signal Analyzer for USB With Low THD and Wide Dynamic Range The DT9847 Series are high-accuracy, dynamic signal acquisition modules designed for sound and vibration applications.
More informationVLAPLAN VLA OBSERVING STRATEGY PLANNER
VLA COMPUTER MEMORANDUM No. 179 VLAPLAN VLA OBSERVING STRATEGY PLANNER Version 1.3 December 15, 1988 Alan H. Bridle National Radio Astronomy Observatory, Edgemont Road Charlottesville, Virginia 22903-2475,
More informationComputer Graphics Hardware
Computer Graphics Hardware Kenneth H. Carpenter Department of Electrical and Computer Engineering Kansas State University January 26, 2001 - February 5, 2004 1 The CRT display The most commonly used type
More informationNON-UNIFORM KERNEL SAMPLING IN AUDIO SIGNAL RESAMPLER
NON-UNIFORM KERNEL SAMPLING IN AUDIO SIGNAL RESAMPLER Grzegorz Kraszewski Białystok Technical University, Electrical Engineering Faculty, ul. Wiejska 45D, 15-351 Białystok, Poland, e-mail: krashan@teleinfo.pb.bialystok.pl
More informationUnderstanding and Calculating Probability of Intercept
Application Note 74-0046-160517 Understanding and Calculating Probability of Intercept This application note explains the Probability of Intercept (POI) pertaining to a radio-frequency (RF) signal analyser,
More informationA low-power portable H.264/AVC decoder using elastic pipeline
Chapter 3 A low-power portable H.64/AVC decoder using elastic pipeline Yoshinori Sakata, Kentaro Kawakami, Hiroshi Kawaguchi, Masahiko Graduate School, Kobe University, Kobe, Hyogo, 657-8507 Japan Email:
More informationLecture 2 Video Formation and Representation
2013 Spring Term 1 Lecture 2 Video Formation and Representation Wen-Hsiao Peng ( 彭文孝 ) Multimedia Architecture and Processing Lab (MAPL) Department of Computer Science National Chiao Tung University 1
More information1 Digital BPM Systems for Hadron Accelerators
Digital BPM Systems for Hadron Accelerators Proton Synchrotron 26 GeV 200 m diameter 40 ES BPMs Built in 1959 Booster TT70 East hall CB Trajectory measurement: System architecture Inputs Principles of
More informationElectro-Optic Beam Deflectors
Toll Free: 800 748 3349 Electro-Optic Beam Deflectors Conoptics series of electro-optic beam deflectors utilize a quadrapole electric field in an electro-optic material to produce a linear refractive index
More informationECE 4220 Real Time Embedded Systems Final Project Spectrum Analyzer
ECE 4220 Real Time Embedded Systems Final Project Spectrum Analyzer by: Matt Mazzola 12222670 Abstract The design of a spectrum analyzer on an embedded device is presented. The device achieves minimum
More informationSensor Development for the imote2 Smart Sensor Platform
Sensor Development for the imote2 Smart Sensor Platform March 7, 2008 2008 Introduction Aging infrastructure requires cost effective and timely inspection and maintenance practices The condition of a structure
More informationDepartment of Electrical & Electronic Engineering Imperial College of Science, Technology and Medicine. Project: Real-Time Speech Enhancement
Department of Electrical & Electronic Engineering Imperial College of Science, Technology and Medicine Project: Real-Time Speech Enhancement Introduction Telephones are increasingly being used in noisy
More informationIntroduction & Colour
Introduction & Colour Eric C. McCreath School of Computer Science The Australian National University ACT 0200 Australia ericm@cs.anu.edu.au Overview Computer Graphics Uses Basic Hardware and Software Colour
More informationFull Disclosure Monitoring
Full Disclosure Monitoring Power Quality Application Note Full Disclosure monitoring is the ability to measure all aspects of power quality, on every voltage cycle, and record them in appropriate detail
More informationIntro to DSP: Sampling. with GNU Radio Jeff Long
Intro to DSP: Sampling with GNU Radio Jeff Long ADC SDR Hardware Reconfigurable Logic Front End Analog Bus USB2 USB3 GBE PCI Digital Data Control Analog Signals May include multiplesystem Typical SDR Radio
More informationModel 7330 Signal Source Analyzer Dedicated Phase Noise Test System V1.02
Model 7330 Signal Source Analyzer Dedicated Phase Noise Test System V1.02 A fully integrated high-performance cross-correlation signal source analyzer from 5 MHz to 33+ GHz Key Features Complete broadband
More informationmmwave Radar Sensor Auto Radar Apps Webinar: Vehicle Occupancy Detection
mmwave Radar Sensor Auto Radar Apps Webinar: Vehicle Occupancy Detection Please note, this webinar is being recorded and will be made available to the public. Audio Dial-in info: Phone #: 1-972-995-7777
More informationDEPFET Active Pixel Sensors for the ILC
DEPFET Active Pixel Sensors for the ILC Laci Andricek for the DEPFET Collaboration (www.depfet.org) The DEPFET ILC VTX Project steering chips Switcher thinning technology Simulation sensor development
More informationHEBS: Histogram Equalization for Backlight Scaling
HEBS: Histogram Equalization for Backlight Scaling Ali Iranli, Hanif Fatemi, Massoud Pedram University of Southern California Los Angeles CA March 2005 Motivation 10% 1% 11% 12% 12% 12% 6% 35% 1% 3% 16%
More informationPS User Guide Series Seismic-Data Display
PS User Guide Series 2015 Seismic-Data Display Prepared By Choon B. Park, Ph.D. January 2015 Table of Contents Page 1. File 2 2. Data 2 2.1 Resample 3 3. Edit 4 3.1 Export Data 4 3.2 Cut/Append Records
More informationUNIT-3 Part A. 2. What is radio sonde? [ N/D-16]
UNIT-3 Part A 1. What is CFAR loss? [ N/D-16] Constant false alarm rate (CFAR) is a property of threshold or gain control devices that maintain an approximately constant rate of false target detections
More informationLCD and Plasma display technologies are promising solutions for large-format
Chapter 4 4. LCD and Plasma Display Characterization 4. Overview LCD and Plasma display technologies are promising solutions for large-format color displays. As these devices become more popular, display
More informationWritten Progress Report. Automated High Beam System
Written Progress Report Automated High Beam System Linda Zhao Chief Executive Officer Sujin Lee Chief Finance Officer Victor Mateescu VP Research & Development Alex Huang VP Software Claire Liu VP Operation
More informationScintillation Tile Hodoscope for the PANDA Barrel Time-Of-Flight Detector
Scintillation Tile Hodoscope for the PANDA Barrel Time-Of-Flight Detector William Nalti, Ken Suzuki, Stefan-Meyer-Institut, ÖAW on behalf of the PANDA/Barrel-TOF(SciTil) group 12.06.2018, ICASiPM2018 1
More informationLossless Compression Algorithms for Direct- Write Lithography Systems
Lossless Compression Algorithms for Direct- Write Lithography Systems Hsin-I Liu Video and Image Processing Lab Department of Electrical Engineering and Computer Science University of California at Berkeley
More informationPeriodic WP2 Progress Report 2. WP2 SKA design. Objectives of WP2. Restructuring of WP2
Periodic WP2 Progress Report 2 WP2 SKA design Objectives of WP2 WP2 is the main SKA design activity; it will produce a costed top-level design for the SKA and a detailed system design for Phase 1 of the
More informationImplications and Optimization of Coverage and Payload for ATSC 3.0
Implications and Optimization of Coverage and Payload for ATSC 3.0 Featuring GatesAir s April 23, 2017 NAB Show 2017 Steven Rossiter TV Systems Applications Engineer Copyright 2017 GatesAir, Inc. All rights
More informationCommissioning and Initial Performance of the Belle II itop PID Subdetector
Commissioning and Initial Performance of the Belle II itop PID Subdetector Gary Varner University of Hawaii TIPP 2017 Beijing Upgrading PID Performance - PID (π/κ) detectors - Inside current calorimeter
More informationMCP Signal Extraction and Timing Studies. Kurtis Nishimura University of Hawaii LAPPD Collaboration Meeting June 11, 2010
MCP Signal Extraction and Timing Studies Kurtis Nishimura University of Hawaii LAPPD Collaboration Meeting June 11, 2010 Outline Studying algorithms to process pulses from MCP devices. With the goal of
More informationData Converters and DSPs Getting Closer to Sensors
Data Converters and DSPs Getting Closer to Sensors As the data converters used in military applications must operate faster and at greater resolution, the digital domain is moving closer to the antenna/sensor
More informationENGAGE VIEWERS WITH BREATHTAKING DIGITAL DISPLAYS
ENGAGE VIEWERS WITH BREATHTAKING DIGITAL DISPLAYS New generation MICRO-LED display InFocus LED displays are modular large screens that deliver the best video experience ever and are engineered to handle
More informationConcept for an Observation Builder for Array and Correlator Configuration
NRC-E Memo# 012 1 Concept for an Builder for Array and Correlator Configuration NRC-E Memo# 012 Brent Carlson, February 20, 2001 ABSTRACT The WIDAR correlator design for the E is very flexible and, as
More informationEvaluation of SGI Vizserver
Evaluation of SGI Vizserver James E. Fowler NSF Engineering Research Center Mississippi State University A Report Prepared for the High Performance Visualization Center Initiative (HPVCI) March 31, 2000
More informationDigital BPMs and Orbit Feedback Systems
Digital BPMs and Orbit Feedback Systems, M. Böge, M. Dehler, B. Keil, P. Pollet, V. Schlott Outline stability requirements at SLS storage ring digital beam position monitors (DBPM) SLS global fast orbit
More informationDesign Trade-offs in a Code Division Multiplexing Multiping Multibeam. Echo-Sounder
Design Trade-offs in a Code Division Multiplexing Multiping Multibeam Echo-Sounder B. O Donnell B. R. Calder Abstract Increasing the ping rate in a Multibeam Echo-Sounder (mbes) nominally increases the
More informationDRS Application Note. Integrated VXS SIGINT Digital Receiver/Processor. Technology White Paper. cwcembedded.com
Technology White Paper DRS Application Note tegrated VXS SIGINT Digital Receiver/Processor Figure 1: DRS Tuner and Curtiss-Wright DSP Engine troduction This application note describes a notional Signals
More informationA Matlab toolbox for. Characterisation Of Recorded Underwater Sound (CHORUS) USER S GUIDE
Centre for Marine Science and Technology A Matlab toolbox for Characterisation Of Recorded Underwater Sound (CHORUS) USER S GUIDE Version 5.0b Prepared for: Centre for Marine Science and Technology Prepared
More informationMAutoPitch. Presets button. Left arrow button. Right arrow button. Randomize button. Save button. Panic button. Settings button
MAutoPitch Presets button Presets button shows a window with all available presets. A preset can be loaded from the preset window by double-clicking on it, using the arrow buttons or by using a combination
More informationSpatial Light Modulators XY Series
Spatial Light Modulators XY Series Phase and Amplitude 512x512 and 256x256 A spatial light modulator (SLM) is an electrically programmable device that modulates light according to a fixed spatial (pixel)
More information456 SOLID STATE ANALOGUE TAPE + A80 RECORDER MODELS
456 SOLID STATE ANALOGUE TAPE + A80 RECORDER MODELS 456 STEREO HALF RACK 456 MONO The 456 range in essence is an All Analogue Solid State Tape Recorder the Output of which can be recorded by conventional
More informationMassive MIMO Eight things to consider when testing antenna arrays
Massive_MIMO_misc_5216-2018-92_v0100indd 1 eguide Version 0100 Massive MIMO Eight things to consider when testing antenna arrays 15102018 09:14:29 Massive MIMO makes it possible to increase data throughput
More informationToward Baseline for 400GBASE-ZR Optical Specs
Toward Baseline for 400GBASE-ZR Optical Specs Ilya Lyubomirsky, Bo Zhang, Inphi Corp., Mike Sluyski, Acacia Communications, Inc., Rich Baca, Mark Filer, Microsoft Corp., Gary Nicholl, Mark Nowell, Cisco
More informationOpen loop tracking of radio occultation signals in the lower troposphere
Open loop tracking of radio occultation signals in the lower troposphere S. Sokolovskiy University Corporation for Atmospheric Research Boulder, CO Refractivity profiles used for simulations (1-3) high
More informationPut your sound where it belongs: Numerical optimization of sound systems. Stefan Feistel, Bruce C. Olson, Ana M. Jaramillo AFMG Technologies GmbH
Put your sound where it belongs: Stefan Feistel, Bruce C. Olson, Ana M. Jaramillo Technologies GmbH 166th ASA, San Francisco, 2013 Sound System Design Typical Goals: Complete Coverage High Level and Signal/Noise-Ratio
More informationDigital Storage Oscilloscopes 2550 Series
Data Sheet Digital Storage Oscilloscopes 2550 Series The 2550 series digital storage oscilloscopes provide high performance and value in 2-channel and 4-channel configurations. With bandwidth from 70 MHz
More information7000 Series Signal Source Analyzer & Dedicated Phase Noise Test System
7000 Series Signal Source Analyzer & Dedicated Phase Noise Test System A fully integrated high-performance cross-correlation signal source analyzer with platforms from 5MHz to 7GHz, 26GHz, and 40GHz Key
More informationDraft Baseline Proposal for CDAUI-8 Chipto-Module (C2M) Electrical Interface (NRZ)
Draft Baseline Proposal for CDAUI-8 Chipto-Module (C2M) Electrical Interface (NRZ) Authors: Tom Palkert: MoSys Jeff Trombley, Haoli Qian: Credo Date: Dec. 4 2014 Presented: IEEE 802.3bs electrical interface
More informationStaMPS Persistent Scatterer Practical
StaMPS Persistent Scatterer Practical ESA Land Training Course, Leicester, 10-14 th September, 2018 Andy Hooper, University of Leeds a.hooper@leeds.ac.uk This practical exercise consists of working through
More informationAPPLICATION NOTE. Fiber Alignment Now Achievable with Commercial Software
APPLICATION NOTE Fiber Alignment Now Achievable with Commercial Software 55 Fiber Alignment Now Achievable with Commercial Software Fiber Alignment Fiber (or optical) alignment s goal is to find the location
More informationEASY-MCS. Multichannel Scaler. Profiling Counting Rates up to 150 MHz with 15 ppm Time Resolution.
Multichannel Scaler Profiling Counting Rates up to 150 MHz with 15 ppm Time Resolution. The ideal solution for: Time-resolved single-photon counting Phosphorescence lifetime spectrometry Atmospheric and
More informationNoise. CHEM 411L Instrumental Analysis Laboratory Revision 2.0
CHEM 411L Instrumental Analysis Laboratory Revision 2.0 Noise In this laboratory exercise we will determine the Signal-to-Noise (S/N) ratio for an IR spectrum of Air using a Thermo Nicolet Avatar 360 Fourier
More informationR&S TS-BCAST DVB-H IP Packet Inserter Compact DVB H signal generator with integrated IP packet inserter
Test & Measurement Product Brochure 02.00 R&S TS-BCAST DVB-H IP Packet Inserter Compact DVB H signal generator with integrated IP packet inserter R&S TS-BCAST DVB-H IP packet Inserter At a glance The R&S
More informationFPGA-BASED IMPLEMENTATION OF A REAL-TIME 5000-WORD CONTINUOUS SPEECH RECOGNIZER
FPGA-BASED IMPLEMENTATION OF A REAL-TIME 5000-WORD CONTINUOUS SPEECH RECOGNIZER Young-kyu Choi, Kisun You, and Wonyong Sung School of Electrical Engineering, Seoul National University San 56-1, Shillim-dong,
More information2 Work Package and Work Unit descriptions. 2.8 WP8: RF Systems (R. Ruber, Uppsala)
2 Work Package and Work Unit descriptions 2.8 WP8: RF Systems (R. Ruber, Uppsala) The RF systems work package (WP) addresses the design and development of the RF power generation, control and distribution
More informationA TARGET-based camera for CTA
A TARGET-based camera for CTA TeV Array Readout with GSa/s sampling and Event Trigger (TARGET) chip: overview Custom-designed ASIC for CTA, developed in collaboration with Gary Varner (U Hawaii) Implementation:
More informationAn extreme high resolution Timing Counter for the MEG Upgrade
An extreme high resolution Timing Counter for the MEG Upgrade M. De Gerone INFN Genova on behalf of the MEG collaboration 13th Topical Seminar on Innovative Particle and Radiation Detectors Siena, Oct.
More informationAnalysis of Capacity vs Orbital Spacing for military purpose Ka-band satellites
Analysis of Capacity vs Orbital Spacing for military purpose Ka-band satellites By Hector Velasco Regulatory bodies such as FCC and ITU have established interference limits for FSS networks in the Ku band,
More informationImplementation of an MPEG Codec on the Tilera TM 64 Processor
1 Implementation of an MPEG Codec on the Tilera TM 64 Processor Whitney Flohr Supervisor: Mark Franklin, Ed Richter Department of Electrical and Systems Engineering Washington University in St. Louis Fall
More informationOperating Experience of Broadband Acquisition System on RT-13 Radio Telescopes
Institute of Applied Astronomy Operating Experience of Broadband Acquisition System on RT-13 Radio Telescopes Dmitriy Marshalov, Alexey Melnikov, Evgeny Nosov Institute of Applied Astronomy Russian Academy
More informationPre-processing of revolution speed data in ArtemiS SUITE 1
03/18 in ArtemiS SUITE 1 Introduction 1 TTL logic 2 Sources of error in pulse data acquisition 3 Processing of trigger signals 5 Revolution speed acquisition with complex pulse patterns 7 Introduction
More informationNew Spill Structure Analysis Tools for the VME Based Data Acquisition System ABLASS at GSI
New Spill Structure Analysis Tools for the VME Based Data Acquisition System ABLASS at GSI T. Hoffmann, P. Forck, D. A. Liakin * Gesellschaft f. Schwerionenforschung, Planckstr. 1, D-64291 Darmstadt *
More informationSelf-Test and Adaptation for Random Variations in Reliability
Self-Test and Adaptation for Random Variations in Reliability Kenneth M. Zick and John P. Hayes University of Michigan, Ann Arbor, MI USA August 31, 2010 Motivation Physical variation is increasing dramatically
More information40G SWDM4 MSA Technical Specifications Optical Specifications
40G SWDM4 MSA Technical Specifications Specifications Participants Editor David Lewis, LUMENTUM The following companies were members of the SWDM MSA at the release of this specification: Company Commscope
More informationBEAMAGE 3.0 KEY FEATURES BEAM DIAGNOSTICS PRELIMINARY AVAILABLE MODEL MAIN FUNCTIONS. CMOS Beam Profiling Camera
PRELIMINARY POWER DETECTORS ENERGY DETECTORS MONITORS SPECIAL PRODUCTS OEM DETECTORS THZ DETECTORS PHOTO DETECTORS HIGH POWER DETECTORS CMOS Beam Profiling Camera AVAILABLE MODEL Beamage 3.0 (⅔ in CMOS
More informationAPM CALIBRATION PROCEDURE Rev. A June 3, 2015
APM CALIBRATION PROCEDURE Rev. A June 3, 2015 Calibration of the APM allows system parameters such as coupler coupling values, interconnecting cable losses and system feeder losses to be programmed into
More informationStepArray+ Self-powered digitally steerable column loudspeakers
StepArray+ Self-powered digitally steerable column loudspeakers Acoustics and Audio When I started designing the StepArray range in 2006, I wanted to create a product that would bring a real added value
More informationCS2401-COMPUTER GRAPHICS QUESTION BANK
SRI VENKATESWARA COLLEGE OF ENGINEERING AND TECHNOLOGY THIRUPACHUR. CS2401-COMPUTER GRAPHICS QUESTION BANK UNIT-1-2D PRIMITIVES PART-A 1. Define Persistence Persistence is defined as the time it takes
More information3G/HD/SD dual channel audio embedder/de-embedder
3G/ dual channel audio embedder/de-embedder Dual channel audio embedder/de-embedder, with two independent video channels Being dual channel makes the audio embedder/de-embedder perfect for those pricesensitive
More informationAND-TFT-64PA-DHB 960 x 234 Pixels LCD Color Monitor
960 x 234 Pixels LCD Color Monitor The AND-TFT-64PA-DHB is a compact full color TFT LCD module, that is suitable for applications such as a car TV, portable DCD, GPS, multimedia applications and other
More informationResearch Results in Mixed Signal IC Design
Research Results in Mixed Signal IC Design Jiren Yuan, Professor Department of Electroscience Lund University, Lund, Sweden J. Yuan, Dept. of Electroscience, Lund University 1 Work packages in project
More informationStaMPS Persistent Scatterer Exercise
StaMPS Persistent Scatterer Exercise ESA Land Training Course, Bucharest, 14-18 th September, 2015 Andy Hooper, University of Leeds a.hooper@leeds.ac.uk This exercise consists of working through an example
More informationPlease feel free to download the Demo application software from analogarts.com to help you follow this seminar.
Hello, welcome to Analog Arts spectrum analyzer tutorial. Please feel free to download the Demo application software from analogarts.com to help you follow this seminar. For this presentation, we use a
More information1 Ver.mob Brief guide
1 Ver.mob 14.02.2017 Brief guide 2 Contents Introduction... 3 Main features... 3 Hardware and software requirements... 3 The installation of the program... 3 Description of the main Windows of the program...
More informationTopic 10. Multi-pitch Analysis
Topic 10 Multi-pitch Analysis What is pitch? Common elements of music are pitch, rhythm, dynamics, and the sonic qualities of timbre and texture. An auditory perceptual attribute in terms of which sounds
More informationANALYSIS OF COMPUTED ORDER TRACKING
Mechanical Systems and Signal Processing (1997) 11(2), 187 205 ANALYSIS OF COMPUTED ORDER TRACKING K. R. FYFE AND E. D. S. MUNCK Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta,
More informationIn-process inspection: Inspector technology and concept
Inspector In-process inspection: Inspector technology and concept Need to inspect a part during production or the final result? The Inspector system provides a quick and efficient method to interface a
More informationInternational Journal of Engineering Research-Online A Peer Reviewed International Journal
RESEARCH ARTICLE ISSN: 2321-7758 VLSI IMPLEMENTATION OF SERIES INTEGRATOR COMPOSITE FILTERS FOR SIGNAL PROCESSING MURALI KRISHNA BATHULA Research scholar, ECE Department, UCEK, JNTU Kakinada ABSTRACT The
More informationUSB Mini Spectrum Analyzer User s Guide TSA5G35
USB Mini Spectrum Analyzer User s Guide TSA5G35 Triarchy Technologies, Corp. Page 1 of 21 USB Mini Spectrum Analyzer User s Guide Copyright Notice Copyright 2011 Triarchy Technologies, Corp. All rights
More informationToward VGOS with the AuScope Array
Toward VGOS with the AuScope Array Jamie McCallum, Jim Lovell, Elizaveta Rastorgueva-Foi, Lucia Plank, Stanislav Shabala University of Tasmania The AuScope Array Three 12m Telescopes across the Australian
More informationPulsed Klystrons for Next Generation Neutron Sources Edward L. Eisen - CPI, Inc. Palo Alto, CA, USA
Pulsed Klystrons for Next Generation Neutron Sources Edward L. Eisen - CPI, Inc. Palo Alto, CA, USA Abstract The U.S. Department of Energy (DOE) Office of Science has funded the construction of a new accelerator-based
More informationMAGNETIC HEAD FOR USE WITH QIC-4GB-DC RECORDING FORMAT
QIC-179 Revision A 27 Aug 97 MAGNETIC HEAD FOR USE WITH QIC-4GB-DC RECORDING FORMAT (See important notices on the following page) Important Notices This document is a development standard adopted by Quarter-Inch
More information