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现有解调 2FSK信号的方法 ,大多采用时域解调的方式。本文提出了一种利用离散短时傅里叶变换 (DSTFT)在时频域解调 2FSK信号的新方法 ,仿真表明效果良好。
The existing methods of demodulating 2FSK signal mostly adopt the method of time domain demodulation. In this paper, we propose a new method to demodulate 2FSK signals in the time-frequency domain by using the discrete short-time Fourier transform (DSTFT). The simulation shows good results.