仿真FFT参数对采用FFT算法分析信号频谱的影响。产生频率分别为2Hz，2.05Hz的正弦波合成信号，采样频率＝10Hz。-Simulation of the influence of FFT parameters on the frequency spectrum of the signal using FFT algorithm analysis. The frequency of sine wave synthesis are respectively 2Hz, 2.05Hz signal, the sampling frequency is 10Hz.