基于循环相关熵谱的时频混叠信号载波频率估计方法

doi:10.11959/j.issn.1000-436x.2018091

通信学报 ›› 2018, Vol. 39 ›› Issue (6): 20-26.doi: 10.11959/j.issn.1000-436x.2018091

基于循环相关熵谱的时频混叠信号载波频率估计方法

邱天爽¹(),陈兴¹,马济通¹,李景春²,李蓉²

¹ 大连理工大学电子信息与电气工程学部，辽宁大连 116024
² 国家无线电监测中心，北京 100037

修回日期:2018-04-19 出版日期:2018-06-01 发布日期:2018-07-09
作者简介:邱天爽（1954-），男，江苏海门人，博士，大连理工大学教授、博士生导师，主要研究方向为数字字信号处理理论及应用等。|陈兴（1995-），男，湖南湘乡人，大连理工大学硕士生，主要研究方向为非高斯信号处理。|马济通（1990-），男，江苏赣榆人，大连理工大学博士生，主要研究方向为非高斯信号处理。|李景春（1966-），男，河北宁晋人，博士，国家无线电监测中心副主任兼总工程师，主要研究方向为无线电监测理论与应用等。|李蓉（1984-），女，北京人，博士，国家无线电监测中心高级工程师，主要研究方向为认知无线电与数字信号处理等。
基金资助:
国家自然科学基金资助项目(61671105);国家自然科学基金资助项目(61172108);国家自然科学基金资助项目(61139001)

Carrier frequency estimation method of time-frequency overlapped signals based on cyclic correntropy spectrum

Tianshuang QIU¹(),Xing CHEN¹,Jitong MA¹,Jingchun LI²,Rong LI²

¹ Faculty of EIEE,Dalian University of Technology,Dalian 116024,China
² The State Radio Monitoring Center,Beijing 100037,China

Revised:2018-04-19 Online:2018-06-01 Published:2018-07-09
Supported by:
The National Natural Science Foundation of China(61671105);The National Natural Science Foundation of China(61172108);The National Natural Science Foundation of China(61139001)

摘要/Abstract

摘要：

针对Alpha稳定分布噪声环境下时频混叠BPSK信号载频估计的性能退化问题，提出了基于循环相关熵谱的时频混叠BPSK信号载频估计方法，推导了BPSK信号在0频率处循环相关熵谱幅度切面上循环频率与载波频率之间的关系，并将此关系应用于载波频率估计中。这种基于循环相关熵谱载频估计方法，能够抑制脉冲噪声的影响，具有较好的估计性能，仿真实验证明了算法的有效性与顽健性。

关键词: Alpha稳定分布, 循环相关熵, 时频混叠, 载频估计

Abstract:

According to the performance degradation problem of the carrier frequency estimation method of time-frequency overlapped BPSK signals in Alpha-stable distribution noise,a novel carrier frequency estimation algorithm of the time-frequency overlapped BPSK signals based on the cyclic correntropy spectrum was proposed.The relationship between cyclic frequency and carrier frequency on the zero frequency section of the cyclic correntropy spectrum was deduced,which could be utilized for carrier frequency estimation.The proposed method can suppress the impulse noise and has better estimation performance than that of the contrastive methods.Simulation results are presented to demonstrate the effectiveness and robustness of the proposed method.

Key words: Alpha-stable distribution, cyclic correntropy, time-frequency overlapped, carrier frequency estimation

中图分类号:

TN911.7

邱天爽,陈兴,马济通,李景春,李蓉. 基于循环相关熵谱的时频混叠信号载波频率估计方法[J]. 通信学报, 2018, 39(6): 20-26.

Tianshuang QIU,Xing CHEN,Jitong MA,Jingchun LI,Rong LI. Carrier frequency estimation method of time-frequency overlapped signals based on cyclic correntropy spectrum[J]. Journal on Communications, 2018, 39(6): 20-26.

图/表 5

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基于循环相关熵谱的时频混叠信号载波频率估计方法

Carrier frequency estimation method of time-frequency overlapped signals based on cyclic correntropy spectrum

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