本文对基带信号单边带调制解调方法和FSK信号的调制解调方法进行了研究,提出了一种新的单边带信号解调法——逆维弗法,以及一种新的自适应误差解调方法(AEDEM),逆维弗法无需从接收信号中恢复出相干载波,而其解调性能近似相干解调的性能,而AEDEM法与传统的自适应算法相比具有跟踪小频差速度快,误码率低的优点,以上两种算法均适于用数字信号处理技术(DSP)实现。实践证明其易于实现,且工作可靠。 In this paper, the baseband signal single-sideband modulation and demodulation methods and FSK signal modulation and demodulation methods are studied, a new single-sideband signal demodulation method - inverse Weifu method, as well as a new adaptive The error-demodulation method (AEDEM) and inverse-Weaver method do not need to recover the coherent carrier from the received signal, and the demodulation performance approximates the performance of coherent demodulation. However, the AEDEM method has the advantages of tracking smaller frequency difference than the traditional adaptive algorithm Fast, low bit error rate advantages of the above two algorithms are suitable for digital signal processing (DSP) to achieve. Practice has proved that it is easy to implement and work reliably.