基于波形评价准则的相位补偿方法

J4 ›› 2015, Vol. 32 ›› Issue (4): 399-406.

基于波形评价准则的相位补偿方法

丁健, 朱丰, 杨璐, 张宏斌

1 滁州学院安徽滁州239000；2 北京军区空军政治部北京 100061； 3 中国人民解放军91053部队北京 100070；4 中国人民解放军93508部队北京 100079

收稿日期:2014-08-29 修回日期:2014-11-17 出版日期:2015-07-28 发布日期:2015-08-04
通讯作者: 丁健(1981-)，硕士，主研领域为信号处理。 E-mail:loading1981@126.com
基金资助:
安徽省优秀青年人才基金重点项目（2013SQRL093ZD）；安徽省自然科学基金资助课题（1308085MF92）；安徽高等学校省级自然科学研究项目（KJ2013B186）；安徽省优秀青年人才基金一般项目（2012SQRL152）

Compensation Method Based on Waveform Evaluation Criterion

DING Jian, ZHU Feng, YANG Lu, ZHANG Hong-bin

1. Chuzhou Institute Chuzhou 239000; 2. Air Force Political Department of Beijing Military Area Command, Beijing, 100061; 3. No. 91053 Unit of PLA, Beijing, 100070; 4. No. 93508 Unit of PLA, Beijing, 100079

Received:2014-08-29 Revised:2014-11-17 Published:2015-07-28 Online:2015-08-04

摘要/Abstract

摘要：

针对间断的单、双频信号如何进行有效相位补偿的问题展开研究。通过严格的理论推导给出了信号相位精确补偿的所需条件，即间断的单频信号可无条件进行精确补偿，间断的双频信号可在两个频率差与采样时间间隔之积为整数的条件下进行精确补偿。针对无法精确补偿的情形，提出了基于波形评价准则的近似补偿方法，并通过仿真实验比较了四种不同波形评价准则的近似补偿效果。实验结果不仅证明了本文理论和方法的有效性，同时还表明，基于波形指数熵、能量对比度准则的近似补偿效果更优，补偿后信号的频谱图峰值更高。

关键词: 单、双频信号, 补偿原理, 相位, 频谱图, 波形评价准则

Abstract:

Aimed at how to compensate the phase of the incomplete single and double frequency signal effectively, some researches are carried out. The necessary condition for exact phase compensation of signal are deduced and testified theoretically. That is, exact phase compensation can be executed for the incomplete single frequency unconditionally. And it can be executed for the incomplete double frequency on condition of that the multiply of difference from the two frequency of the signal and sampling time interval is an integer. Aimed at the issue of the exact phase compensation can't be carried out, the approximate compensation method based on waveform evaluation criterion is proposed. In simulations, the different compensation effects based on four different criterions are compared. The results prove the deduced theory and proposed method are valid, and show that the compensation effect based on waveform exponent entropy or energy contrast criterion is better than that of other, and the peak of frequency spectrogram is higher than that of other.

Key words: Single and double frequency signal, Compensation principle, Phase, Frequency spectrogram, Waveform evaluation criterion

中图分类号:

TN957

丁健，朱丰，杨璐，张宏斌. 基于波形评价准则的相位补偿方法[J]. J4, 2015, 32(4): 399-406.

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