Clutter processing for digital radars based on FPGA and DSP

Clutter processing is a key link for vessel traffic services. According to the shortcomings of traditional analog video system, this paper proposes a design solution for digital radar signal processing system based on FPGA and DSP and studies both related preprocessing method and constant false alarm rate algorithm based on wavelet transform. This method can suppress the interference of sea clutter without impairing the target resolution. Experimental results demonstrate this design can decrease the false alarm rate, increase the detection accuracy and improve the tracking performance. Thus, signal processing system based on FPGA and DSP plays an important role in the vessel traffic services.