The features of pseudo code PM-carrier FM combined signal include the pseudo code and the modulation frequency.

伪码调相-载波调频复合信号的识别特征包括伪码特征和频率调制特征。

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In frequently used methods, sine wave is used as carrier with amplitude modulation (am), frequency modulation (FM) and phase modulation (PM) implied.

常用的调制方式使用正弦波作为载波并对其进行幅度调制(AM)和角度调制即调频(FM)或调相(PM)。

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