数字

Design and Implementation of multichannel multi-bandwidth SAR digital receiver

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This paper introduces the design and implementation of multichannel multi-bandwidth SAR digital receiver based on FPGA. Considering the problems in traditional multi-bandwidth synthetic aperture radar(SAR)system,such as too many channels and signal bandwidths, this digital receiver system adopts a multispeed data transmission.This method can greatly reduce the data throughput, reduce the data rate of the subsequent signal processing, effectively reduce the number of external fiber,simplify the complexity of the SAR system, and improve the reliability of the system. The practice proves that the scheme is a feasible way to realize multi channel data transmission.