fast fourier transform algorithm

基本解释

Using the Fast Fourier Transform algorithm signal capture through simulation and other methods to carry out a comparative analysis is a method to improve;
基于傅立叶算法实现信号快速捕获功能，通过仿真并与其他方法进行了比较分析，改进了算法；
In order to improve the operation tempo of Hilbert transform, this paper recomposed the primary operation method on the basis of FFT (Fast Fourier Transform Algorithm).
为了实现希尔伯特变换的快速计算，本文以FFT快速傅里叶变换为基础，对原算法进行了改进。
With this method, the spectrum leakage can be avoided more effectively than Fast Fourier Transform algorithm and better accuracy can be assured in certain frequency range.
这种方法与传统的快速傅立叶变换算法相比，避免了由于基波频率提取不准而造成的频谱泄漏，在一定的基波频率变化范围内具有较高的精度。