针对短波信道多径传播的特点，采用卷积型滤波技术和复时谱分析方法，抗多径传播引起的信号衰落．研究结果表明，该方法能够更好的滤除干扰，改变传输信道质量． Aiming at the characteristics of short-wave channel multipath propagation, the signal fading caused by anti-multipath propagation is studied by using the convolutional filtering technique and complex temporal analysis method. The results show that this method can better filter out interference and change the quality of transmission channel.