Radar Signal Processor Unit

RSPU-1.0 is a Radar Signal Processing Unit which can be used as a standard signal processing block for implementation of a pulsed radar system. The unit generates comprehensive user configurable timing and control signals for operation of a radar and accepts received radar analog signals at intermediate frequency to compute range-doppler spectrum in real time. This is done by performing a series of signal processing steps on the received signal digitally. The unit can accept either a single channel radar signal for basic pulse radar processing or can accept multiple radar echo signals for cross spectral radar signal processing.

Typical Applications :
 Pulsed Radar Signal Processor
(Wind Profiler, Weather Radar, Cloud Radar, Ionospheric Radar etc.)
 Timing and Control Signal / CHIRP Signal Generator for a Radar

This unit implements complex functional modules required in typical pulsed radar signal processing systems. IF Rx analog inputs and Mon analog outputs are implemented through high speed ADC and DAC devices with all further processing implemented as parallel executing digital blocks. RSPU-1.0 manages all critical administrative functions such as configuration, monitoring, diagnostics etc. using a micro-controller. RSPU-1.0 offers communication interfaces such as 10/100/1000 Mbps ethernet, RS232/RS422 and USB ports. All internal and timing/control signal output from RSPU-1.0 can be synchronized with an external Master Clock source using internal Phase Locked Loop (PLL).  

RSPU-1.0 implements a very flexible and configurable timing and control signal generator with precise setting of different timings such as inter pulse period (IPP). High performance in radar signal processing in RSPU-1.0 is a result of well synchronized receive signal processing with these transmit timing/control signals. RSPU-1.0 implements various signal processing steps like digital down conversion (DDC) to baseband (from IF), matched filtering for pulse decoding, coherent integration, Doppler spectrum, incoherent integration synchronized timing and control signal generation, diagnostic functions and data / configuration communication with a host computer (radar controller) through its efficient embedded firmware.

Sr. No.ParametersSpecification
1No. of IF received  radar signal analog inputs1 to 4
2Received radar  analog full scale range0dBm
3Received radar  analog frequency rangeDC to 600MHz
4Received radar  signal sampling (ADC)16bit, 300MSPS
5No. of analog monitoring channels2
6Monitoring analog full scale range0dBm
7Monitoring analog signal update  (DAC)16bit, 500MSPS
8No. of synch clock outputs (PLL)8
9PLL clock output frequency range10MHz to 1000MHz
10PLL clock output voltage complianceLVDS
11No. of digital inputs / triggers / voltage compliance16 / LVTTL
12No. of digital outputs (TCSG) / voltage compliance48 (e.g. IPP, Tx Pulse, Tx_Code, Baud Clock, SWIN etc.) / LVTTL
13Master sync clock external input frequency / amplitude10MHz (configurable) / 0dBm (min); Internal clock of 10MHz, 2ppb short term stability
14Communication interfacesRS232(1) or RS422 (1), USB2.0(1), 10/100/1000 Ethernet (2)
15Physical characteristics400 * 120 * 400mm (19” rack fit), 3Kg
16Power supply input230VAC, 50Hz, 100Watt (Other options available)
17Operating temperature range0 to 50 degC
18No. of Range CellsUp to 4096 (configurable)
19Code Length / TypesUp to 256 (configurable) / Complimentary, Barker, User Defined
20Coherent Integrations / In-Coherent IntegrationsNCI up to 1024 / INCI up to 16384
21Doppler Spectrum FFT LengthUp to 4096 (configurable)
22Sensitivity (Including Signal Processing Gain)Better than -110dBm
23Radar Signal processing Features (Firmware)Digital tuning with NCO, Digital Down Conversion (DDC), Pulse Decoding (Digital Matched Filtering), Coherent Integration, FFT, In-coherent Integration, Synchronous timing generation, protocol based data transfer over USB/ethernet, diagnostics, system configuration
24Application Programming InterfaceMS-Windows/Linux based APIs. RSPU is compatible with SCICOM’s RadCon (Radar Control) and WindPro (Wind Data Products) SW applications.