fast fourier transform algorithm

基本解釋

Using the Fast Fourier Transform algorithm signal capture through simulation and other methods to carry out a comparative analysis is a method to improve;
基於傅立葉算法實現(xiàn)信號快速捕獲功能，通過倣真竝與其他方法進行了比較分析，改進了算法；
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).
爲了實現(xiàn)希爾伯特變換的快速計算，本文以FFT快速傅裡葉變換爲基礎(chǔ)，對原算法進行了改進。
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.
這種方法與傳統(tǒng)的快速傅立葉變換算法相比，避免了由於基波頻率提取不準而造成的頻譜泄漏，在一定的基波頻率變化範圍內(nèi)具有較高的精度。