| 一种新的低截获概率雷达信号的设计与分析 |
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| 引用本文： | 向建军,夏海宝,李新虎,甘轶. 一种新的低截获概率雷达信号的设计与分析[J]. 火控雷达技术, 2012, 0(1): 28-33 |
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| 作者姓名： | 向建军 夏海宝 李新虎 甘轶 |
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| 作者单位： | 空军工程大学,西安,710038 |
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| 基金项目： | 陕西省电子信息系统综合集成重点实验室基金 |
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| 摘 要： | 从信号频谱、模糊函数等方面对二相编码信号、步进频率信号两种典型的低截获概率雷达信号进行了分析,提出一种脉内二相编码——脉间步进频率复合调制雷达信号,并对其优缺点进行了比较。研究结果表明,复合调制信号既能克服步进频率信号较严重的距离——多普勒耦合和相位编码信号的多普勒频移敏感的缺点,同时又具备相位编码信号的大带宽特性和步进频率信号的高距离分辨率特性,是一种较理想的低截获概率雷达信号。
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| 关 键 词： | 低截获概率 模糊函数 相位编码信号 步进频率信号 |
Design and Analysis of a New LPI Radar Signal |
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| Xiang Jianjun,Xia Haibao,Li Xinhu,Gan Yi. Design and Analysis of a New LPI Radar Signal[J]. Fire Control Radar Technology, 2012, 0(1): 28-33 |
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| Authors: | Xiang Jianjun Xia Haibao Li Xinhu Gan Yi |
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| Affiliation: | (Air Force Engineering University,Xi′an 710038) |
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| Abstract: | Two typical low probability of interception(LPI) signals,those are,binary phase coding signal and stepped frequency signal are analyzed in aspects of signal spectrum and ambiguity function.A phase coding and stepped-frequency compound modulated signal is put forward;its advantages and disadvantages are discussed.Research result shows that the compound modulated signal is a perfect LPI radar signal,which can not only overcome range-and-Doppler coupling of stepped frequency signal and Doppler shift sensitivity of phase coding signal,but also possess wide bandwidth characteristics of phase coding signal and high range resolution feature of stepped frequency signal. |
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| Keywords: | LPI ambiguity function phase coding signal stepped frequency signal |
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