1) Fourier transform-time domain iteration method
傅立叶变换-时频迭代法
2) cascaded iterative Fourier transform algorithm
级联迭代傅立叶变换算法
3) IFT
迭代傅里叶变换
1.
Two methods for phase retrieval,namely the iterative Fourier transform(IFT) algorithm and a new de-autocorrelation algorithm,are discussed.
讨论了两类相位复原算法——迭代傅里叶变换(IFT)和解相关算法。
4) STFT
短时傅立叶变换
1.
By means of short-time Fourier Transform(STFT) and wavelet transform,the time and frequency characteristic of signals are analyzed and the relation between signal time and frequency characteristic and the welded spot′s growing process are researched.
针对电阻点焊机焊点的质量在线监测问题,设计了一套点焊过程动态信号采集与处理系统,同步采集点焊过程电极间电压、焊接电流和电极位移信号,通过短时傅立叶变换、小波变换对信号进行时域-频域分析,确立了动态信号时域、频率特征与焊点形核过程的对应关系。
2.
This article mainly discusses the STFT,wave.
本文对应用于超声多普勒血流信号分析的短时傅立叶变换、小波变换、参数模型法和Cohen类的时频分布等方法作了着重论述。
3.
Heart sound is a highly nonstationary signal, and the Short-time Fourier Transform ation(STFT) is an effective method for this kind of signal to be analysed.
心音信号是一种典型的非平稳信号,短时傅立叶变换(STFT,又称窗口傅立叶变换)是用于对非平稳信号进行时频分析的有效工具。
5) short-time Fourier transform
短时傅立叶变换
1.
Application of short-time Fourier transform in the vibration analysis of the large hydroelectric machine;
短时傅立叶变换在大型水轮发电机组振动分析中的应用
2.
Instantaneous frequency estimation of the sequence of hopping frequency based on short-time Fourier transform;
基于短时傅立叶变换的跳频序列瞬时频率估计
3.
We discuss the Short-Time Fourier Transform (STFT) method and the wavelet method.
心音信号是非平稳信号,为全面了解心音信号的特性,文中探讨了短时傅立叶变换和小波分析两种时频分析方法;并利用它们对正常和非正常心音信号进行了分析,通过对比分析结果,比较了各自的优劣。
6) Short Time Fourier Transform
短时傅立叶变换
1.
A Pulsar de-dispersion Algorithm Based on the Short Time Fourier Transform(STFT);
一种基于短时傅立叶变换的脉冲星消色散算法
2.
Then,its time-frequency figure can be obtained using the conventional algorithm,the STFT (Short Time Fourier Transform),to process it.
根据对超声多普勒血流物理模型的研究,提出了一套自己的物理模型,用超声探头采集出多普勒信号,然后再利用一些较为经典的方法,如短时傅立叶变换对其进行处理,然后得到其时频分布图。
3.
The electrical signal of three species in compositae,namely,Senecio cruentus、Bellis perennis and Chrysanthemum coronarium grown in flowerpots,was determined and then analyzed by the method of short time Fourier transform.
对测得的瓜叶菊(Senecio cruentus)、雏菊(Bellis perennis)和茼蒿(Chrysanthemum coronarium)三种盆栽菊科植物的电信号进行了短时傅立叶变换分析。
补充资料：代立
1.亦作"代位"。 2.继立为君。立，通"位"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条