RADAR Simplified. Wideband & Ultra-wideband radar solutions for HF, VHF, UHF & SHF bands

Transcription

1 RADAR Simplified Wideband & Ultra-wideband radar solutions for HF, VHF, UHF & SHF bands

2 10 GIGABIT SENSOR PROCESSING FAST, SCALABLE & SYNCHRONIZED D-TA Systems has created sensor processing solutions that use the 10 Gigabit Ethernet backbone, instead of computer bus, for high speed data transfer between signal acquisition and processing modules. Appropriately termed 10 Gigabit Sensor Processing, the approach can handle the demanding requirements of high-bandwidth and high channel-count requirements of today s military sensor systems. D-TA s 10 Gigabit Sensor Processing sustains data throughput rate close to the line rate (>1 GBytes/s per fibre) with no loss of data. D-TA s design also ensures virtually limitless scalability and fully synchronous operation irrespective of the number of fibers (networks) used. Furthermore, D-TA s 10 Gigabit Sensor Processing is OS agnostic, facilitating greater software portability. The use of optical fibers allows separation of signal digitization and processing functions over long distances, permitting digitization close to the sensors. To facilitate user development D-TA has also developed a software development framework for real-time processing of high-speed network (sensor) data using multi-core servers.

3 Ready-For-Action RADAR Solutions That Drastically Cut Deployment Time & Cost D-TA Systems caters to the EW Systems market with ready-to-run solutions that drastically cut deployment time & cost. D-TA has created an array of innovative sensor interface solutions that connect seamlessly to off-the-shelf servers using the high speed 10 Gigabit network (fiber). D-TA s 10 Gigabit network attached sensor interface solutions provide end-to-end coverage for demanding radio, radar & sonar applications. The user is freed from having to develop and test complex RF, IF and data acquisition subsystems, instead only focuses on software application development. D-TA provides software development kit (SDK), application examples and hands-on training to speed up user development. For many applications, including real-time recording and playback, D-TA provides complete solution and no user development is required. For RADAR applications D-TA offers gapless coverage from 1 MHz to 18GHz, extendable to 40 GHz, and bandwidths from a few MHz to 500 MHz for both single-antenna and multiantenna applications. D-TA s products support deployments in land, air & sea. D-TA s products are well suited for multi-channel phase coherent applications for phase-array radar applications. Data transmission over optical 10GbE link allows users to deploy the front-end data acquisition hardware near the antenna, thereby improving sensitivity. This is particularly useful for phased array HF radar and other remote installations where the signal acquisition can be deployed close to the antennas and the data processing can be conveniently done in a remote sheltered location.

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5 CONTENTS: 1 Single Antenna Radar Solutions 1.1 Multi-Core Software Radar Processing 2 A Complete 3-Channel Mobile Radar Channel Radar System Highlights 3 HF Phased Array Radar 3.1 DTA-3200H HF Front End: Band Splitting Options 3.2 DTA-2300: 16-Channel Phase Coherent IF Transceiver (SDR) 3.3 DTA-2300: FPGA Based Narrowband Processing 4 5 Ultra-Wideband Radar Signature Collection Ultra-Wideband Long-Duration Signal Generation For Radar Test

6 Single Antenna Radar Solution DTA-3290 Transceiver (20 MHz - 6 GHz, 40 MHz BW) 10 GbE (I & Q Data) Shock & Vibration Isolated Packaging (A man-portable version is also available) DTA-1000R RAID Server [For real-time signal processing, recording & playback] 1 GbE (Control) User Computer (GUI/Control API) A single channel radar system can be readily implemented using either DTA-3290 transceiver (download Tech Note TN-20) for bandwidths up to 40MHz, or DTA-9590 (download Tech Note TN-32) transceiver for bandwidths up to 500 MHz. The frequency ranges are up to 6 GHz for DTA-3290 and up to 18 GHz (expandable to 40 GHz) for DTA-9590 The transceiver (either DTA-3290 or DTA-9500) connects to a server class computer via the 10 Gigabit optical network(s) All receive & transmit processing is done in the server (multi-core SW processing) using complex baseband (I & Q) data from/to the transceiver. Real-time multi-core software based radar processing allows for easy feature upgrade and implementing additional processing by using a server with more processors as required. 1

7 Multi-Core Software Radar Processing Using multi-core, multi-threaded SDK and a low-cost server (with only 8 processing cores), has developed D-TA s fully functional real-time radar processing involving pulse compression and doppler processing with tabbed displays for range profile and doppler. The system offers real-time operation with a 40 MHz BW radar signal. To speed up user development D-TA provides SDK, application examples with source codes and also hands-on training. Example of Server Based Radar Processing 2

8 A Complete 3-channel Mobile Radar Three (3) DTA-3290 transceivers are repackaged in a 3U enclosure to provide three receiver channels and one transmit channel along with all control I/Os (FPGA based). A system as discussed below was delivered for mobile ATC radar application. The three coherent RF channels are down converted to 75MHz IF and digitized and down converted to complex baseband (I & Q) data for transmission over 10GbE fiber interface to a server for processing and display. Extensive digital I/Os are implemented in the system for controls. 3U T/R gate encompassing the Tx waveform. Multiple Tx waveform shown. 10 GbE (Fiber) Transmission of a calibration/test waveform between PRI dead time. DTA-5000 [2U RAID Server] 2U 3-channel receive and single transmit channels integrated with Radar control Azimuth Reference Pulse Azimuth Change Pulse Radar PRI Radar Rx Channel (Echo) The ACP/ARP pulses provide the antenna position data to the radar system. A variety of geographic control is implemented based on the antenna position information. The antenna pointing direction is embedded in the digitized data and sent to the server for processing. 3

9 3-Ch Radar System Highlights Multiple Tx may be optionally included RF UP & DOWN CONVERTER ACP, ARP, T/R, etc. ADC DAC I/O INTERFACE DDC, I/O MERGE & 10 GbE I/F FPGA 10 GbE (Fiber) Server (Radar Processing) Important Features: Three receive channels for horizontal, vertical polarization and separate weather channel - May be expanded to four receive channels Complete radar control functionality implemented in the FPGA Schedule based PRI & Coherent Pulse Interval (CPI) operation - Multiple CPI & PRIs can be programmed - Multiple transmit waveforms Azimuth Change Pulse (ACP), Azimuth Reference Pulse (ARP) information embedded in data header Schedule based front-end attenuator control Antenna position based transmit control Schedule based post dwell for continuous system monitoring Test signal injection into receive path for in-system test and calibration User processing in the server 4

10 HF Phased Array Radar System HF Conditioning DTA-3200H DTA-3200H DTA-3200H DTA-3200H DTA-2300S DTA-2300S DTA-2300S DTA-2300S Long Range 10GbE fiber HF To Baseband (I & Q) Phased Array Tx solution also available Processing/ Recording A 128-channel HF phased Array Radar system was recently delivered by D-TA Major Features: 1 MHz to 30 MHz coverage with front-end HF band splitting option for high sensitivity HF operation (see next page) Fully differential amplification for 2 nd harmonic distortion reduction Programmable 31-dB attenuator in steps of 1dB for gain balance and spurious management Full Transceive Operation High power Tx section offers +17dBm output power for direct connection to HF power amplifiers 90 db SFDR Optical 10GbE network allow long distance transmission with LR optics Lengths up to 10km possible A cluster of 16 or more channels can be placed in a single location -- improving sensitivity Multiple clusters may be spaced out to match with the actual antenna placement Digitized data can be transmitted to common recording/processing station Narrowband DDC 5

11 EXAMPLES OF DEPLOYED RADAR CONFIGURATIONS

12 HF Radar (Cont d): DTA-3200H HF Front End Any HF band can be selected for multichannel phase coherent operation LPF (30 MHz) BPF : 1 to 4 MHz LPF 30 MHz Opt External Notch may be insterted here BPF : 4 to 8 MHz BPF : 8 to 15 MHz BPF : 15 to 30 MHz PROG ATTN 0 to 31 db (1 db steps) LPF 30 MHz To DTA-2300 Receive Section With HF Band Splitting Two tone performance at maximum gain with output power of -10 dbm per tone DTA-3200H provides up to 16 HF channels in a 1U package From DTA-2300 LPF 50 MHz High IP2 Amplifier High IP2 Amplifier Transmit Section (20 db Gain) To Power Amp Download: HF Processing presentation from home page & Tech Note TN-19 for more information 7

13 HF Radar (Con d): DTA Channel Phase Coherent IF Transceiver DTA-2300 Major Features : 8 x 16-ch HF Front End (8 x DTA-3200H) 8 x 16-ch Digital Rx (8 x DTA-2300) 1U size, 19 rack-mount enclosure Up to 16 receive & 16 transmit channels and up to 4 10GbE links 16-bit ADC and 16-bit DAC with up to 160 MSPS capability Phase synchronous operation FPGA based wide & narrowband DDCs provide operating bandwidths from 40 MHz to sub-khz Programmable clock delay chip in 10ps steps to adjust for RF cable mismatch Multi-core server based processing for real time recording and real time radar beamforming and range-doppler processing (optional) channel HF Radar System in Test RAID Server (DTA-5000) Spectral plot of the receive section for a sinusoidal input showing lower than -90 dbc SFDR 8 DTA-2300 BLOCK DIAGRAM

14 Rounding 16 or 32 bits out HF Radar (Cont d): DTA-2300 FPGA Based Narrow Band Processing X 22 Fs HBF1 (D=2) 11 tap Fs/2 HBF2 (D=2) 19 tap Fs/4 Fs/4D Fs/8D Fs/16D Fs/32D CIC N = 5 CFIR (D=2) 32 tap PFIR1 (D=2) 64 tap PFIR2 (D=2) 96 tap Rounding 16 or 32 bits out I D = 4 to 4K 18 From ADC (Mux) 16 COS NCO (MUX) (1 Hz res) DTA-2300 on-board FPGA s implement both wideband and narrowband channels (40 MHz to sub-khz) for high dynamic range processing 18 -SIN X 22 Fs HBF1 (D=2) 11 tap Fs/2 Fs/4 Fs/4D Fs/8D Fs/16D Fs/32D HBF2 (D=2) 19 tap CIC N = 5 CFIR (D=2) 32 tap PFIR1 (D=2) 64 tap PFIR2 (D=2) 96 tap Q D = 4 to 4K Complete phase coherent operation Decimation up to 128K NCOs held in reset and released when triggered Programmable filter coeffiecients allow fine tuning of bandwidth All 16 ADC channels may be output on a single 10GbE link (following NB DDC) 16 or 32 bits I/Q output Better than 100 db measured SFDR Sub 1Hz tuning resolution 9

15 Ultra-Wideband Radar Signature Collection DTA-9590 [1U] DTA-1000R [1U] RFvision-2 Ultra-wideband (500 MHz) System D-TA s RFvision-2 system includes DTA-9590 ultra-wideband transceiver and DTA-1000R-SSD RAID Server with 7.6 TB storage capacity. The DTA-9590 is capable of scanning from 500 MHz to 18 GHz and offering an instantaneous BW of 500 MHz at 1.2 GHz IF. The IF signal is sampled at 1.6 GHz (12-bit precision) and following digital down conversion (DDC), 500 MHz baseband I & Q data is output via two 10 Gigabit networks to DTA-1000R server for processing & recording. RF/IF IF/ Baseband (I & Q) 1.6 GHz (500 MHz - 18 GHz) RF In DTA-9590 (Tunable Transceiver) X ADC LOs 2 X V6 FPGAs DAC 500 MHz IBW, 1.2 GHz IF Optional Analog Out 12-Bit ADC & 12-Bit DAC DDC, DUC & Network Major Features: Fully configured solution based on DTA-9590 Ultra-wideband transceiver and DTA-1000R RAID Server with 7.6 TB SSD storage 500 MHz to 18 GHz frequency coverage with 500 MHz IBW 12 Bit data converters & dual Virtex 6 FPGAs with DDC & network cores 60 db SFDR; 1 KHz Scan resolution; low phase noise; and fast scanning Programmable DDC based BW selection (500 MHz standard, 250 MHz, 125 MHz & others are optional) Real-time recording of 500 MHz BW signal Replicated 10 GbE networks for simultaneous user processing (in a separate computer) while recording Convenient & failsafe SigInspector software for control and analysis DTA-1000R (Record/Playback) 2 x 10 GbE Networks (I & Q Data) 1 GbE Control RAID Server with 7.6 TB SSD Storage RFvision-2 System Block Diagram Low-cost options include: Software script for convenient file access by MATLAB, Platinum Blue, SPECTRO-X or other propular software for analysis of recorded data Analog IFoutput Optional RF down-converter to increase frequency range to 40 GHz Shock & vibration protected transit case 10

16 Ultra-Wideband Long-Duration Signal Generation For Radar Test 12-Bit DAC Fs <= 4 GHz DDR-3 FIFO FPGA 10GbE Interfaces 600 MHz BW chirp pulse output at 3.6 GSPS DAC output rate. 4 X 10 GbE Fibers DTA-9500 [1U] DTA-5000 RAID Server [2U] Multi tones from 200 to 1600 MHz created with a 3.6 GSPS DAC output rate. The plot shows about a 14 db droop over the passband USER PC The compact 3U solution based on DTA-9500 ultra-wideband digital IF transceiver & DTA-5000 RAID Server (2U) can be used to generate long-term scenario, by playing back computer-generated or pre-recorded data at rates up to 4 GBytes/s. Download: Tech Note TN-30 for more information on DTA

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18 PRESENTATIONS & VIDEO DEMOS D-TA s website [ provides a wealth of information on D-TA products and applications. The following presentations, downloadable from the home page [under heading Deployment-Ready ISR/EW Solutions, provide more details on D-TA s products and applications: Deployment Ready Solutions for Radar, Radio, Sonar D-TA Products Overview SIGINT Simplified RF/IF Signal Recording & Playback RFvision-1 Wideband Spectrum Processing System RFvision-2 Ultra-Wideband Spectrum Processing System Tunable Multi Antenna Transceive Processing HF Processing Sonar Processing Real-Time Multi-core Software Application Development and, more Spectrum On The Go UNITED STATES D-TA Systems Corporation 116 Defense Highway Suite 310 Annapolis, MD Phone: INTERNATIONAL D-TA Systems Inc Lancaster Road Ottawa ON, Canada K1B 4S5 Phone: Fax: D-TA SYSTEMS INC. Video Demonstrations: D-TA s RFvision-1 & -2 and other products are available on YouTube at