ZOOM-FFT称为细化的快速傅立叶变换，又称为选带快速傅立叶变换。ZOOM-FFT的功能是对信号的频率进行局部细化放大，使感兴趣的频带获得较高的频率分辨率。实现FFT细化功能的算法有几种，如频移法-、相位补偿法和最大熵谱法等，目前应用最关的是频移法(ZOOM-FFT is called a thinned Fast Fourier Transform, also known as Fast Fourier Transform. The function of ZOOM-FFT is to pa

GMSK信号进行了仿真研究,GPRS采用与GSM 相同的频段,频带宽度,突发结构,无线调制标准,跳频规则以及相同的TDMA()

VMD方法能够使一个多频带的故障信号，分解出具有单个频带的子信号，然后使用共振解调方法可实现故障信号的诊断。(The VMD method can make a multi band fault signal decompose the subsignal with a single frequency band, and then use the resonance demodulation method to realize the diagnosis of the fault signal