| 基于矩形自卷积窗的加窗插值修正算法 |
| |
| 引用本文： | 陈飞.基于矩形自卷积窗的加窗插值修正算法[J].南京晓庄学院学报,2011,27(3):87-91. |
| |
| 作者姓名： | 陈飞 |
| |
| 作者单位： | 南京晓庄学院数学与信息技术学院,江苏南京,210017 |
| |
| 摘 要： | 非同步采样时,快速傅里叶变换应用于谐波分析容易造成频谱泄露和栅栏效应,影响谐波分析的效果,通过加窗和插值可以改善谐波分析的准确度.在分析矩形自卷积窗的旁瓣性能的基础上,文章提出了一种基于矩形自卷积窗的双谱线插值修正算法,仿真实验证明了该算法的有效性,且便于嵌入式系统实现.
|
| 关 键 词： | 谐波分析 矩形自卷积窗 快速傅立叶变换 双峰谱线插值 |
The Correction Window and Interpolation Algorithm Based on Rectangular Self-Convolution Windows |
| |
| CHEN Fei.The Correction Window and Interpolation Algorithm Based on Rectangular Self-Convolution Windows[J].Journal of Nanjing Xiaozhuang College,2011,27(3):87-91. |
| |
| Authors: | CHEN Fei |
| |
| Institution: | CHEN Fei(School of Mathematics and Information Technology,Nanjing XiaoZhuang University,Nanjing 210017,Jiangsu) |
| |
| Abstract: | There are two drawbacks with the use of the fast Fourier transform（FFT） for harmonic analysis in the non-coherent sampling： the spectral leakage and picket fence effect,and besides,the harmonic phase cannot be accurately obtained.The utilization of window functions and interpolation algorithms can help improve the accuracy of harmonic analysis.In this paper,the side-lobe characteristics of rectangular self-convolution windows are analyzed,and double peak of spectral lines interpolation algorithm based on it is presented.The simulation results have verified the effectiveness and practicability of the algorithm. |
| |
| Keywords: | harmonic analysis rectangular self-convolution windows FFT double peak of spectral lines interpolation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
