| 基于小波分析的卫星测控信号盲识别算法 |
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| 引用本文： | 王乐,顾学迈,王永建.基于小波分析的卫星测控信号盲识别算法[J].南京理工大学学报(自然科学版),2006,30(6):729-732,738. |
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| 作者姓名： | 王乐 顾学迈 王永建 |
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| 作者单位： | 哈尔滨工业大学,通信技术研究所,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家“863”计划（2004AA001210） |
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| 摘 要： | 针对卫星测控通信信息侦察中测控信号识别的问题，提出一种基于小波分析的测控信号副载波识别算法。算法首先基于小波多分辨率分析去噪原理，对混合信号进行去噪处理，然后，采用零点分区法确定副载波个数，最后设计了闽值自适应判别算法来确定各个副载波的频率分界点。仿真结果表明：该测控信号副载波识别算法精度达到95％，抗噪声干扰能力强。
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| 关 键 词： | 小波分析 副载波 盲识别 |
| 文章编号： | 1005-9830（2006）06-0729-04 |
| 收稿时间： | 2006-03-27 |
| 修稿时间： | 2006-03-272006-09-12 |
Blind Recognition Algorithm of TT&C Signals of Satellite Based on Wavelet Analysis |
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| WANG Le,GU Xue-mai,WANG Yong-jian.Blind Recognition Algorithm of TT&C Signals of Satellite Based on Wavelet Analysis[J].Journal of Nanjing University of Science and Technology(Nature Science),2006,30(6):729-732,738. |
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| Authors: | WANG Le GU Xue-mai WANG Yong-jian |
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| Institution: | Communications Research Center, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | A blind sub-carrier recognition algorithm of TT&C(telemetry,tracking and command) communication is proposed based on the wavelet analysis in terms of recognition of TT&C signals for military TT&C communication information scout.First,the proposed algorithm denoises the mixed-signals based on the theory of wavelet multi-resolution analysis.And then zero-partition is put forward to make sure the number of sub-carriers.Finally,the adaptive threshold identification algorithm is designed to identify the frequency cut-off points of every sub-carrier.The simulation results show that the recognition precision of the proposed sub-carrier recognition algorithm is 95%and the algorithm is of stronger anti-noise-interference ability. |
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| Keywords: | wavelet analysis sub-carriers blind recognition |
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