数据采集与处理2009，Vol.24Issue(z1)：39-42,4.
短时分数阶傅里叶变换的基本性质
Basic Properties of Short-Time Fractional Fourier Transform
平殿发 1刘贤忠 1赵培洪1
作者信息
- 1. 海军航空工程学院电子信息工程系,烟台,264001
- 折叠
摘要
Abstract
As a novel tool for time-frequency analysis,the short-time fractional Fourier transform(STFrFT)does not lead to the distortion while achieving dechirping.Thus,STFrFT is more appropriate to process polynomial phase signals than the fractional Fourier transform (FrFT).Some basic properties of STFrFT,such as reconstruction condition,Parseval principle and so on are proved.The selection principles of the window function and its parameters are given by a chirp signal.The obtained conclusion provides a reference for STFTFT application.关键词
分数阶傅里叶变换/短时分数阶傅里叶变换/窗函数Key words
fractional Fourier transform/short-time fractional Fourier transform/window function分类
信息技术与安全科学引用本文复制引用
平殿发,刘贤忠,赵培洪..短时分数阶傅里叶变换的基本性质[J].数据采集与处理,2009,24(z1):39-42,4.
