电讯技术Issue(1)：63-67,5.DOI:10.3969/j.issn.1001-893x.2014.01.012
基于自相关函数相位的正弦信号频率估计新算法
A Novel Algorithm for Estimation of Sinusoid Frequency Based on Argument of Sample Autocorrelation Function
黄超 1索继东 2于亮1
作者信息
- 1. 大连海事大学 信息科学技术学院，辽宁 大连116026
- 2. 大连理工大学 城市学院 电子与自动化学院，辽宁 大连116600
- 折叠
摘要
Abstract
A new carrier frequency estimation algorithm based on the argument of the sample autocorrelation function in additive white Gaussian noise( AWGN) is proposed. Firstly,a formula for frequency estimation based on the argument of the sample autocorrelation function is derived. Secondly, a phase ambiguity re-moval method for solving the contradiction problems between estimation range and estimation accuracy . Al-gorithm analysis and simulation results show the estimation variance of the proposed algorithm is close to the Cramer-Rao low bound( CRLB) when the signal-to-noise ratio( SNR) is higher than 6 dB and the cal-culation amount is smaller under the same estimation variance compared with the TSA algorithm and also easy for engineering realization.关键词
正弦信号/频率估计/自相关函数/估计范围/克拉美罗下界/相位模糊消除Key words
sinusoid signal/frequency estimation/autocorrelation function/estimation range/Cramer-Rao low bound/phase ambiguity removal分类
信息技术与安全科学引用本文复制引用
黄超,索继东,于亮..基于自相关函数相位的正弦信号频率估计新算法[J].电讯技术,2014,(1):63-67,5.
