卫星通信信号体系调制识别技术

doi:10.7527/S1000-6893.2014.0089

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卫星通信信号体系调制识别技术

马兆宇¹, 韩福丽², 谢智东¹, 胡婧¹, 边东明¹, 张更新¹

1. 解放军理工大学通信工程学院, 江苏南京 210007;
2. 武警北京指挥学院, 北京 100012

收稿日期:2014-01-24 修回日期:2014-05-06 出版日期:2014-12-25 发布日期:2014-06-16
通讯作者: 张更新男, 教授.主要研究方向: 卫星通信、卫星测控、卫星导航与深空通信. Tel: 025-80828431 E-mail: gengxin＿zhang@126.com E-mail:gengxin_zhang@126.com
作者简介:马兆宇男, 硕士研究生.主要研究方向: 卫星通信. Tel: 025-80828467 E-mail: matao20032@126.com
基金资助:
国家自然科学基金(61032004,91338201);国家"863"计划(2012AA121605,2012AA01A503,2012AA01A510)

Modulation Recognition Technology of Satellite Communication Signal System

MA Zhaoyu¹, HAN Fuli², XIE Zhidong¹, HU Jing¹, BIAN Dongming¹, ZHANG Gengxin¹

1. Institute of Communication Engineering, People's Liberation Army University of Science and Technology, Nanjing 210007, China;
2. Beijing Armed Police Command College, Beijing 100012, China

Received:2014-01-24 Revised:2014-05-06 Online:2014-12-25 Published:2014-06-16
Supported by:
National Natural Science Foundation of China (61032004, 91338201); National High-tech Research and Development Program of China (2012AA121605, 2012AA01A503, 2012AA01A510)

摘要/Abstract

摘要：

对常用卫星通信信号的高阶累积量和高阶谱的谱线特征进行了理论分析与仿真,提出一种基于高阶累积量和谱特征相结合的卫星通信信号调制方式识别方法.该方法从升余弦成形信号的高阶累积量、功率谱、平方谱和四次方谱中提取一组健壮性强的特征参数,在没有先验知识的条件下,完成对卫星信号符号速率和载波频率的盲估计,并在此基础上实现调制方式的自动识别.该方法涵盖了目前绝大多数的卫星通信调制方式,初步形成了卫星通信信号调制识别体系.仿真实验表明,该方法能够克服升余弦成形带来的影响,在实际中有较好的应用前景.

关键词: 卫星通信, 调制, 识别, 高阶累积量, 谱特征, 升余弦成形

Abstract:

A novel method for automatic modulation recognition in satellite communication is presented based on the high-order cumulants and characteristics of the spectrum, after that the simulation of the high-order cumulants and the spectrum lines of kinds of modulation signal in satellite communication are given and analyzed. A set of robust characteristic parameters for automatic modulation recognition is obtained which is from the high-order cumulants, power spectrum, square spectrum and quartic spectrum of the raised cosine shaping signals. And then, the method to automatic identification of the modulation attend is realized by blind estimation of symbol rates and carrier frequencies of signals without any prior knowledge. Most modulation modes of satellite communication are covered in this method and the identification system of satellite communication modulation is formed initially. The simulation results show that the method can overcome the effects of raised cosine shaping and is promising in satellite communications.

Key words: satellite communication, modulation, recognition, high order cumulant, spectrum feature, raised cosine shaping

中图分类号:

V19
TN911.7

马兆宇, 韩福丽, 谢智东, 胡婧, 边东明, 张更新. 卫星通信信号体系调制识别技术[J]. 航空学报, 2014, 35(12): 3403-3414.

MA Zhaoyu, HAN Fuli, XIE Zhidong, HU Jing, BIAN Dongming, ZHANG Gengxin. Modulation Recognition Technology of Satellite Communication Signal System[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014, 35(12): 3403-3414.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

卫星通信信号体系调制识别技术

Modulation Recognition Technology of Satellite Communication Signal System

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