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PCM/FM信号软件解调算法研究 被引量:2

Research on Software Demodulation Method for PCM/FM Signal
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摘要 针对PCM/FM信号解调的特点,研究一种基于短时傅里叶变换STFT的软件化解调方法。首先采用STFT检测f1和f0对应的频谱能量,再根据两能量谱的比较进行码元判决。详细论述软件解调系统的数字检测和码同步软件算法,分析算法的解调性能。仿真和测试结果验证了方法的有效性。 针对PCM/FM信号解调的特点,研究一种基于短时傅里叶变换STFT的软件化解调方法。首先采用STFT检测f1和f0对应的频谱能量,再根据两能量谱的比较进行码元判决。详细论述软件解调系统的数字检测和码同步软件算法,分析算法的解调性能。仿真和测试结果验证了方法的有效性。
出处 《遥测遥控》 2012年第4期31-36,共6页 Journal of Telemetry,Tracking and Command
关键词 PCM/FM 短时傅里叶变换 软件解调 PCM/FM Short time Fourier transform Software demodulation
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