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论文:2013,Vol:31,Issue(6):947-951 |
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引用本文: |
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黄琼丹, 李勇, 付银娟. 多载频类随机相位编码雷达信号设计与特性分析[J]. 西北工业大学 |
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Huang Qiongdan, Li Yong, Fu Yinjuan. A New Multi-Frequency Random Phase Code Radar Signal Designing Method[J]. Northwestern polytechnical university |
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多载频类随机相位编码雷达信号设计与特性分析 |
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黄琼丹, 李勇, 付银娟 |
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西北工业大学 电子信息学院 机载电子综合信息系统创新实验室, 陕西 西安 710072 |
摘要: |
基于OFDM技术的多频多相编码(multifrequency complementary phase coded,简称MCPC)宽带雷达信号具有控制简单、生成便利和良好的频谱利用率等优点,己成为雷达信号研究领域的重要发展方向和研究热点。用基于改进型Logistic及分段Logistic映射的混沌二相码调制MCPC信号各载频的相位,把混沌信号类随机的性质引入到MCPC信号中,设计出多载频类随机相位编码(multifrequency random-like phase coded,简称MRPC)雷达信号,并对MRPC信号的模糊函数、截获因子、峰均包络功率比(PMEPR)等进行了分析。给出了混沌序列的初值、MRPC信号的载频数及码元个数对PMEPR的影响关系,以便于选择合适的初值、载频数和码元数。仿真结果表明,设计出的新信号既具有MCPC信号的优点,又具有类噪声雷达信号图钉型的模糊函数和良好的抗干扰及低截获(LPI)性能,而且分段Logistic MRPC信号的性能优于改进型Logistic MRPC信号。 |
关键词:
类随机
改进型Logistic映射
分段Logistic映射
MRPC
模糊函数
PMEPR
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A New Multi-Frequency Random Phase Code Radar Signal Designing Method |
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Huang Qiongdan, Li Yong, Fu Yinjuan |
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Department of Electronics Engineering, Northwestern Polytechnical University, Xi'an 710072, China |
Abstract: |
We propose what we believe to be a new multi-frequency random phase code (MRPC) radar signal de-signing method.Its core consists of:(1) we use the chaotic biphased code based on the improved Logistic mapping and the piecewise Logistic mapping to modulate the phase of the multi-carrier phase code (MCPC) radar signal;(2) we introduce the quasi-random properties of a chaotic signal into the MCPC radar signal and design the MRPC radar signal, whose ambiguity function, interception factor and peak-to-mean envelope power ratio (PMEPR) is then analyzed;(3) to select the initial value of the chaotic sequence of the MRPC radar signal, the number of its frequency carriers and the number of its phase-modulated bits, we present their influence on the PMEPR.The sim-ulation results, given in Figs.2 through 6, and their analysis show preliminarily that:(1) the new MRPC radar sig-nal we thus designed keeps the strong points of the MCPC radar signal, has the thumbtack function of the quasi-noise radar signal and the excellent anti-jamming and LPI performances;(2) the piecewise Logistic MRPC radar signal has a better performance of these kinds than the improved one. |
Key words:
autocorrelation
design
mapping
signal processing
radar
ambiguity function
improved Logistic mapping
multi-frequency random phase code (MRPC)
peak-to-mean envelope power ratio (PMEPR)
piecewise Logistic mapping
radar signal
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收稿日期: 2013-03-12
修回日期:
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DOI: |
基金项目: 航空科学基金(20112053018);航空电子系统射频综合仿真航空科技重点实验室联合资助 |
通讯作者:
Email: |
作者简介: 黄琼丹(1979-),女,西北工业大学博士研究生,主要从事雷达信号设计与处理技术的研究。
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黄琼丹 在本刊中的所有文章 |
李勇 在本刊中的所有文章 |
付银娟 在本刊中的所有文章 |
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参考文献: |
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[1] Levanon N. Multifrequency Complementary Phase-Coded Radar Signal. IEE Proceedings on Radar, Sonar Navigation, 2000, 147 (6): 276-284 [2] Sebt M A, Sheikhi A, Nayebi M M. Orthogonal Frequency-Division Multiplexing Radar Signal Design with Optimized Ambiguity Function and Low Peak-to-Average Power Ratio. IET Radar, Sonar and Navigation. 2009, 3(2): 122-132 [3] Satyabrata Sen, Arye Nehorai. Adaptive Design of OFDM Radar Signal with Improved Wideband Ambiguity Function. IEEE Trans on Signal Processing, 2010, 58(2): 928-933 [4] Levanon N. Multicarrier Radar Signals with Low Peak-to-Mean Envelope Power Ratio. IEE Proceedings on Radar, Sonar Navigation, 2003, 150(2): 71-77 [5] 霍凯, 姜卫东. 一种新的 OFDM 相位编码频率步进雷达信号及其特性. 电子与信息学报, 2011, 33(3): 677-683 Xue Kai, Jiang Weidong. A New OFDM Phase-Coded Stepped-Frequency Radar Signal and Its Characteristic. Journal of Electronics & Information Technology, 2011, 33(3): 677-683 (in Chinese) [6] 尹冰之, 李瑞克. 混沌序列的多载频相位编码雷达信号. 计算机与数学工程, 2012, 40(7): 22-24 Yin Bingzhi, Li Ruike. Multi-Carrier Phase Codee Radar Signal of Chaotic Sequence. Computer & Digital Engineering, 2012,40(7): 22-24 (in Chinese) [7] 范九伦, 张雪峰. 分段 Logistic 混沌映射及其性能分析. 电子学报, 2009, 37(4): 720-725 Fan Jiulun, Zhang Xuefeng. Piecewise Logistic Chaotic Map and Its Performance Analysis. Acta Electronica Sinica, 2009, 37 (4): 720-725 (in Chinese) [8] 邓斌. 多载频相位编码雷达信号设计与处理技术研究: [硕士学位论文]. 长沙: 国防科学技术大学, 2011 Deng Bin. Research on the Signal Designing and Processing of Multi-Carrier Phase Coded Radar. Master Degree Dissertation, Changsha: National University of Defense Technology, 2011 (in Chinese) |
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