FEATURES

· Quad RF (S-Band or L-Band) signal inputs
· 14-bit Direct Digital Down Conversion
· Programmable Digital Filtering
· Magnetron synchronization (if needed)
· Dual RADAR receive channel confi gurable
· Doppler and/or MTI processing
· Standard industry plot outputs (ASTERIX, RDIF, CD2 etc)  
· Doppler and/or MTI processing outstanding
  clutter suppression using adaptive signal processing with:
     · Digital Filtering
     · High Resolution Clutter Maps
     · CFAR processing
     · Independent full range extent clutter processing
       on all filters
     · Full range clutter processing on both Main and Aux
       receive channels

THE SITUATION

The design of this modern radar receiver resulted from a study of the current and likely future needs of the Civil and Military air traffi c control community. With the improvement of cooperative surveillance technologies - Secondary Surveillance Radar (SSR) systems with Mode S capability and the advent of ADS-B, the perceived importance of the traditional “Primary” Surveillance Radar (PSR) over the past 10 years appeared to be diminishing. This diminishing importance of tradition PSR technology lead to industry directing new product investment dollars toward cooperative surveillance technologies and away from supporting the PSR radar and abandoning the aging traditional PSR air surveillance product enhancements and next generation systems. This resulted in leaving users with the high cost of acquiring spare components to maintain their PSR radar systems.

SOLUTION

Hence the introduction of the LIGHTWAVE Digital RF Receiver and Signal Processor upgrade for primary radar systems. LIGHTWAVE upgrades aging PSR radar and extends its service life well past 20 years. LIGHTWAVE replaces cabinets of obsolete circuit assemblies with 2, 19 inch rack mount assemblies. LIGHTWAVE replaces all the existing hardware in a radar receive chain starting at the Low Noise Amplifi er (LNA) through and including plot extraction hardware providing plot messages over industry standard LAN connectivity. System oscillators, STALOs and COHOs, are replaced with an extremely low phase noise oscillator and synthesizer enabling improvements in sub clutter visibility. Complicated multi stage RF to baseband down conversion is replaced with state-of-the-art wide dynamic range direct to digital down conversion (DDC). Magnetron frequency stabilization and phase control, if needed, is all performed digitally providing a true coherent on receive radar receiver. Industry standard highly reliable Enterprise Server computer technology performs all the necessary signal processing and target extraction functions previously performed by cabinets of custom hardware that are expensive to maintain and diffi cult to source spare assemblies. Highly reliable fiber optic connectivity between assemblies allows fl exible installation options while providing highly reliable data transport.