期刊信息
主管单位:国家教育部
主办单位:重庆大学
主  编:
地  址:重庆市沙坪坝正街174号
邮政编码:400030
电  话:023-65102302
电子邮件:xbsg@cqu.edu.cn
国际标准刊号:ISSN 1000-582X
国内统一刊号:CN 50-1044/N
邮发代号:国内78-16 国外 M355
引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  下载PDF阅读器  关闭
←前一篇|后一篇→ EndNote   BibTeX  过刊浏览    高级检索
本文已被:浏览 86次   下载 98 本文二维码信息
码上扫一扫!
分享到: 微信 更多
频谱校正插值法综述及在强噪声下的精度比较
萧红,杨勇,谢明,罗久飞
作者单位
萧红 重庆邮电大学 先进制造工程学院 重庆 400065 
杨勇 重庆机床(集团)有限责任公司 重庆 401336 
谢明 重庆理工大学 汽车工程学院 重庆 400054 
罗久飞 重庆邮电大学 先进制造工程学院 重庆 400065 
摘要:
插值法是离散频谱校正分析中应用最为广泛、研究最为深入、算法种类最多的一种校正方法,按照采用的谱线类型又可以分为基于幅值谱比值和基于复数谱比值的两种插值法。在实际工程应用中,抗噪声性能是评价一种算法最为重要的指标之一。在回顾国内外插值校正算法的理论研究和发展现状的基础上,简要介绍了各种插值算法的原理和特点。通过仿真考察了各算法的抗噪声性能,重点分析了插值极性错误对目前各种算法的影响。通过分析比较,指出了现有插值法的不足之处和亟待解决的问题,对插值校正算法的发展进行了展望和探讨。
关键词:  频谱校正  插值法  频率估计  噪声干扰
DOI:10.11835/j.issn.1000-582X.2017.08.004
分类号:TN911.6
基金项目:重庆市基础科学与前沿技术研究专项资助(CSTC2015JCYJA70004);重庆市教委科学技术研究项目资助(KJ1600430);重庆市杰出青年科学基金项目资助(CSTC2014JCYJJQ70001)。
A review of interpolation algorithms in discrete spectrum correction and a comparative study of their accuracy under strong noise
XIAO Hong,YANG Yong,XIE Ming,LUO Jiufei
Abstract:
Interpolation DFT (discrete Fourier transform) is the most widely applied and deeply studied approach in spectrum correction methods. A lot of interpolation algorithms were proposed in past decades, which can be divided into amplitude-spectrum-based algorithms and complex-spectrum-based algorithms. Anti-noise performance is one of the most important indexes for evaluating an algorithm in the practical engineering applications. On the review of the theory and the development in recent years of interpolation methods, the principles and characteristics of different algorithms were briefly introduced. In addition, the anti-noise performance of algorithms was investigated through computer simulations. The problem of incorrect polarity estimation was particularly analyzed. At last, the deficiency and problems in the current interpolation approaches were pointed out, and the future developments and prospects of interpolation algorithms were discussed.
Key words:  spectrum correction  interpolation algorithm  frequency estimation  noise interference
Copyright@ 2008 All Rights Reserved.