Matlab中的fft分析含噪声的信号，其中有直接FFT，时域同步平均后FFT，频域同步平均后FFT-Matlab s fft analysis with noise signals, which have a direct FFT, time-domain synchronous average, after the FFT, frequency domain synchronization for after averaging FFT

averaging of time domain signal.

时域同步平均法，在降噪上有很明显的帮助TSA-Time-domain synchronous averaging method, the noise has obviously help