阐述了数字正交检波的基本原理，设计完成了数字正交检波在FPGA中的实现，最后给出了测试结果，验证了设计的正确性。%The basic principle of digital orthogonal demodulation is introduced.Later,it expounds the implementation of digital orthogonal demodulation in FPGA.Final y,the measurement is performed to verify the correctness of the design.
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