| 双基地LFM雷达信号模糊函数研究 |
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| 引用本文： | 花汉兵.双基地LFM雷达信号模糊函数研究[J].现代电子技术,2010,33(13):21-23. |
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| 作者姓名： | 花汉兵 |
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| 作者单位： | 南京理工大学电子工程与光电技术学院,江苏南京,210094 |
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| 摘 要： | 从线性调频信号雷达的特点出发，结合双基地雷达几何结构，在模糊函数基本理论的基础上，推导了双基地LFM雷达模糊函数。数值计算及仿真结果表明，双基地LFM雷达模糊函数形状受目标位置影响，当目标远离基线时，其距离和速度分辨率接近于单基地；当目标靠近基线时，其模糊函数形状将展宽，目标分辨率显著降低，符合双基地雷达信号模糊函数的特点，有效地验证了该模型建立的正确性。
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| 关 键 词： | 双基地雷达 线性调频信号 模糊函数 分辨率 |
Study of Ambiguity Function for Bi-static LFM Radar Signal |
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| HUA Han-bing.Study of Ambiguity Function for Bi-static LFM Radar Signal[J].Modern Electronic Technique,2010,33(13):21-23. |
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| Authors: | HUA Han-bing |
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| Affiliation: | HUA Han-bing (School of Electronic Engineering and Optoelectronics, Nanjing University of Science ＆ Technology, Nanjing 210094, China) |
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| Abstract: | Proceeding from the characteristics of linear frequency modulation radar, the ambiguity function of hi-static LFM radar is derived in combination with the special geometrical configuration of bi-static radar and the basic theory of ambiguity function. The numerical computation and simulation results reveal that the shape of bi-static LFM radar ambiguity function is affected by the position of a target. When the target is away from the base-line, its range resolution and velocity resolution of hi-static LFM radar are close to those of mono-static radar, when the target is in the vicinity of the baseline, the shape of bi-static LFM radar ambiguity function is stretched and target resolution is evidently degraded. |
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| Keywords: | bi-static radar linear frequency modulation signal ambiguity function resolution |
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