舰船电子工程2011，Vol.31Issue(10)：92-95,4.
基于FFT与自相关函数的快速功率谱估计方法
Fast Power Spectrum Estimation Method Based on FFT and Autocorrelation Function
李春林 1伍勇2
作者信息
- 1. 92755部队67分队,临高571820
- 2. 92098部队电子对抗科,陵水572425
- 折叠
摘要
Abstract
During the process of power spectrum estimation,autocorrelation function based method is commonly adopted.The structure of the power spectrum estimation is quite similar to Discrete Fourier Transformation（DFT）,however,the DFT results corresponding to its spectra in a random way.Nowadays,since Fast Fourier Transform algorithm is widely used in radar signal processing since its advantage in computation,the parameters of the power spectrum elements are adjusted to the output manner of DFT In this paper.FFT is then adopted to estimate the power spectrum.Finally,the detailed steps of the estimation process as well as computation example are presented,which verified the effectiveness of the algorithm proposed in this paper.关键词
功率谱估计/快速傅立叶变换/自相关函数Key words
power spectrum estimation/fast fourier transform/autocorrelation function分类
信息技术与安全科学引用本文复制引用
李春林,伍勇..基于FFT与自相关函数的快速功率谱估计方法[J].舰船电子工程,2011,31(10):92-95,4.
