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| 窄带干扰下基于循环谱的BPSK直扩信号盲检测 | |
| 引用本文： | 郑鹏,张鑫,刘锋,陶然. 窄带干扰下基于循环谱的BPSK直扩信号盲检测[J]. 电视技术, 2012, 36(7): 78-81,88 |
| 作者姓名： | 郑鹏 张鑫 刘锋 陶然 |
| 作者单位： | 1. 海军航空工程学院电子信息工程系,山东烟台,264001 2. 海军航空工程学院电子信息工程系,山东烟台264001;北京理工大学信息科学技术学院,北京100081 3. 北京理工大学信息科学技术学院,北京,100081 |
| 基金项目： | 国家自然科学基金项目(60232010);国家杰出青年科学基金资助项目(60625104) |
| 摘 要： | 针对窄带干扰中BPSK直扩信号检测,提出了一种基于循环谱的新的检测方法,给出了具体检测流程,分析了检测性能。该方法充分利用了窄带干扰和直扩信号的循环平稳特性,通过峰值搜索检测信号。在不需要知道信号伪码序列和频率参数等先验信息的情况下,该检测方法在窄带强干扰中能有效地实现直扩信号盲检测。仿真实验证明了所提出检测方法的有效性。 |
| 关 键 词： | 直接序列扩频信号 窄带干扰 循环谱 盲检测 |
Blind Detection of DS -SS Signal Based on Cyclic Spectrum in Narrow-band Interference |
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| ZHENG Peng , ZHANG Xin , LIU Feng , TAO Ran. Blind Detection of DS -SS Signal Based on Cyclic Spectrum in Narrow-band Interference[J]. Ideo Engineering, 2012, 36(7): 78-81,88 | |
| Authors: | ZHENG Peng ZHANG Xin LIU Feng TAO Ran |
| Affiliation: | 1.Department of Electronic and Information,Naval Aeronautical Engineering Institute,Shandong Yantai 264001,China; 2.Beijing University of Science and Technology,Institute of Information and Science,Beijing 100081,China) |
| Abstract: | To detect DS-SS signal in narrow-band interference,a new method is presented based on cyclic spectrum.The procedure is given and the performance is analyzed.The new method which exploits the cyclostationary of DS-SS signal and narrow-band interference detect DS-SS signal by peak searching.The DS-SS signal can be detected in low SIR without a priori knowledge of pseudorandom sequence and frequency.The simulation results have proved the validity of the method. |
| Keywords: | DS-SS signal narrow-band interference cyclic spectrum blind detection |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |