Abstract

Using statistical radioengineering methods, we analyzed the noise immunity of the receiving of the signals with multiposition quadrature amplitude modulation (M-QAM) in the presence of noise and relayed interference in the radio channel. It is shown that the reception quality of signals with M-QAM is susceptible to the influence of such interference, and this effect increases as the positioning of the signals increases. It is also established that the noise immunity for the reception of M-QAM signals is significantly better against the background of relayed interference than that of similarly positioned M-PSK signals.

中文翻译：

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存在中继干扰的正交调幅相干信号接收机的抗噪能力

摘要

我们使用统计无线电工程方法，分析了在无线电信道中存在噪声和中继干扰的情况下，采用多位置正交幅度调制（M-QAM）接收信号的抗干扰性。可以看出，具有M-QAM的信号的接收质量容易受到这种干扰的影响，并且随着信号定位的增加，这种影响也会增加。还已经确定，在中继干扰的背景下，与类似定位的M-PSK信号相比，接收M-QAM信号的抗干扰性要好得多。