In this system, FPGA is used as a main logic unit and DSP is used as a digital demodulate unit.The influence of carrier phase delay on demodulation output is corrected.

• 该系统采用FPGA实现数据的高速采集和逻辑控制,用DSP实现传感信号的全数字解调,分析了载波相位延迟对解调输出的影响并采取了纠正措施。