Design of Signal Processing Correlation for the New Generation Pulse Doppler Weather Radar
With the rapid development of weather radar technology,higher requirements are put forward for signal processing related technologies.In response to the technical requirements for singal processing of a certain type of pulse Doppler weather radar,the NDSP board in the signal processing and monitoring subsystem has been designed accordingly.The NDSP board adoptsDSP and FPGA as the main functional chips,integrating fiber optic interfaces,network inter-faces,SRAM,SDRAM etc.In the NDSP board,functions such as filtering,DVIP,PPP,FFT,ve-locity ambiguity resolving,range ambiguity resolving,large dynamic splicing,and signal process-ing self inspection have been implemented.Through testing and continuous operation on the en-tire pulse Doppler weather radar,the NDSP board can meet requirements of signal processing related technical indicators,and has characteristics such as high integration,stable performance,and low failure rate.
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