Ultra-Wideband Scanning Receiver with Signal Activity Detection, Real-Time Recording, IF Playback & Data Analysis Capabilities

Transcription

1 Ultra-Wideband Scanning Receiver RFvision-2 (DTA-95) Ultra-Wideband Scanning Receiver with Signal Activity Detection, Real-Time Recording, IF Playback & Data Analysis Capabilities

2 RFvision-2 Ultra-Wideband Scanning Receiver The RFvision -2 (DTA-95) system includes DTA-5900 ultra-wideband tuner, DTA ultra-wideband digitizer & reproducer and DTA-5000 server based RAID storage system. The packaged in a convenient shock-mount enclosure for portability & field applications. The system comes fully integrated and tested and requires no user development. DTA-5900 ( GHz) Tuner with 500 MHz IBW DTA-9500AC with 12-Bit 3.6GHz ADC & 4 GHz DAC, FPGA Based DDC (Programmable BW Selection) and DUC RF-Eye-2 (5U) System Configuration DTA-5000 Real-Time (500 MHz) Record /Playback System with 9.6 TB Storage

3 1U IF OUT (optional) 1U 3U 0.5 GHz 26.5 GHz RF IN DTA-5900 Wideband Tuner 500 MHZ IBW, 1.2 GHz IF DTA-9500 Wideband Rx & Tx DTA-5000 Record / Playback (9.6 TB Storage capacity) RFvision-2 (DTA-95) System Block Diagram Fs=1.6 GHz 2 X 10 GbE Replicated 10 GbE for postprocessing (optional) At A Glance: Manual or automated scan 12 Bit data converters >63 db SFDR DDC based programmable BW selection from 500 MHz to 15.6 MHz Real-time record & playback at over 1600 Mbytes/s SigInspector v95 control GUI and Spectro-X (optional) software for analysis of recorded data Analog IF output (optional) Optional replicated 10 GbE links for processing while recording The operation involves scanning the RF spectrum for detecting and selecting signal activity to down convert to IF (by DTA-9500) and then digitization and IF to baseband conversion by FPGA based DDC (on-board 9500) and then transferring the data via two 10 gigabit networks for recording by DTA server/ RAID storage system [Download Tech Notes TN-30-33] Waterfall GHz Current & Previous Scans (Max-Hold) Record FFT Occupancy Log Convenient GUI (SigInspector TM Ver. 95 Software) for scanning, activity detection & recording

4 Illustration of Digital Down Conversion (DDC) process by spectral sketches Tuner output (IF) following RF to IF conversion by DTA MHz Band Analog IF Filter Skirt Under sampling at Fs by DTA-9500 shifts the frequency bad of interest to the negative side of the spectrum 1.2 GHz IF Fs=1.6 GHz 500 MHz Band Decimation by 3 DDC Output (Complex I & Q basedand signal} at 533 MHz complex rate (or 1066 MHz real rate or 1.6 Gbytes/s rate for 12 bit output) 500 MHz Band The DDC receives input data at 1.6 MHz (12 bit) rate. The DDC operation involves shifting the band to DC and then low pass filtering and decimation of the output (rate reduction) DDC Low Pass Digital filter skirt DC Fs/D=1.6 GHz/3=533 MHz (Complex output data rate) The DTA-5000 is capable of recording at over 2 Gbytes/s with spinning media

5 Important specifications RF Features Value Comments No. of Rx Channels 1 Frequency range 500 MHz 26.5 GHz Tuning resolution Tuning speed Instantaneous BW (IBW) 10 Hz 1 ms Download TN-31 for more info 500 MHz Smaller bandwidths with DDC programming IF Frequency 1.2 GHz The DTA-5900 can optionally support an IF of 160 MHz and IBWs of 100 MHz or less. Receive Gain & Gain Control RF gain Variation Receive Noise Figure 42 db in steps of 1 db +/- 1.5 db 15 db max

6 Important specifications (Cont d) Features Value Comments Input VSWR 2.5:1 Max RF Input Level 20 dbm Input IP db Gain Typical Input 1 db compression -15 dbm Receive Image Reject 70 db Typical ADC Resolution 12 bits The DTA-9500 includes two 12 bit 1.8 GSPS ADCs. Only one is used RF-Eye-2 system ADC Sample Rate 1.6 GHz DAC Resolution 12-Bit The DAC is optional ADC SFDR > 63 db DDC Decimation 3, 6, 12, 24 and 48 Data Transfer 2 X 10 GbE to DTA-5000 Optical Fibers

7 Important Features (Continued) Features Value Comments Control 1 GbE Optical Fiber Reference Clock Internal /External Internal 100 MHz. External: 100 or 10 MHz Recording Time > Over 1and ½ hours At full bandwidth 500 MHz Graphical User Interface SigInspector v.95 GUI runs on user provided laptop/computer Operating Temp Dimensions 5⁰ to +35⁰C 0⁰ to +55⁰C 22.5 (W) x (H) x 34.0 (D) With Commercial servers With extended temp servers Installed in the case with two 5 deep lids Mass 100 lbs (50 kg) Inclusive of the shock-mount case Power 700 watts Full system 7

8 Compact 3U solution for Handling Bandwidths 250 MHz or less For Processing BWs 250 MHz or less, DTA-5000 (3U System) can be replaced by DTA-1000-R (1U System) for Record & Playback RFvision 2 in a 3U package DTA-1000-R (1U system) DTA-1000-R (1U system with up to 6 TB storage) can record & playback at over 800 Mbytes/s for processing BWs 250 MHz or less. Note also the output data word length can be either 12 or 8 bits (this rounding is done only at the final output of the DDC). For processing BWs 125 MHz or smaller, the 160 MHz IF option for the tuner can be selected. Please contact factory for details.

9 Post Analysis of Recorded Data Using Spectro-X Software by X-Com Applications Electronic Warfare - Visualize and post process broad segments of the battlefield spectrum to design robust communications networks. Wireless Communications - Capture, identify and play back waveforms or create new ones fundamental to the testing and development of satellite and terrestrial, voice, data and telemetry equipment and networks. Spectro-X Signal Analysis Software is offered as an option with RFvision products The Spectro-X graphically displays pre-recorded I & Q sample files and provides powerful, menu-driven signal search and analysis tools That includes: Simultaneous, multi-domain visualization and correlation Three dimensional plots showing power, frequency and time or magnitude, frequency and persistence Integrated pulse analysis Search for carriers, standard waveforms or arbitrary waveforms Click and drag zoom function quickly displays details of spectrum. Un-zoom with one mouse click Visual summary of entire capture file and zoom box quickly identifies time segment of interest for analysis Auto scaling maximizes display window viewing range Clip and export search matches to XIQ, TIQ,.txt and.mat formats Playback speeds are fully controlled by the user Playback all or specific portions of a file Spectrum Management - Monitor spectrum usage and supplement the use of spectrum snapshots and tedious power surveys with long duration, geo-tagged, time-stamped spectral recordings. Radar - Capture wide bandwidths over extended time periods to analyze radar effectiveness. Create and test new waveforms to improve performance. Surveillance - Determine usage patterns, intercept transmissions and correlate data files to receiver locations for military, drug interdiction and homeland security applications. For a video on Spectro-X software visit

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