| 干噪比估算新方法及被动跟踪精度问题研究 |
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| 引用本文： | 张伯彦,李少洪. 干噪比估算新方法及被动跟踪精度问题研究[J]. 电子学报, 2009, 37(9): 1895-1899 |
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| 作者姓名： | 张伯彦 李少洪 |
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| 作者单位： | 北京航空航天大学电子信息工程学院,北京,100191;航天科工集团二院二十三所,北京,100854;北京航空航天大学电子信息工程学院,北京,100191 |
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| 摘 要： | 本文从空间干扰源及其散射体的概念出发,分析并指出主动雷达进行被动跟踪时,干扰源散射体的散射功率从旁瓣进入接收机,是影响跟踪精度的主要"噪声功率",分别给出了跟踪主瓣接收的干扰源干扰功率和跟踪旁瓣接收的干扰源散射体的散射功率计算公式,重点分析了干扰源若干空间以外搜索波束接收的干扰功率的特点,提出了一种用搜索波束接收的干扰功率代替不容易计算的跟踪旁瓣接收的散射功率来估算干噪比的新方法,分析和试验结果表明这种代替和估计是正确和合理的.
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| 关 键 词： | 抗干扰技术 被动跟踪 干噪比 相控阵雷达 |
| 收稿时间： | 2008-08-18 |
A New Method of Estimating Jam-Noise Ratio and Research on Passive Tracking Precision |
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| ZHANG Bo-yan,LI Shao-hong. A New Method of Estimating Jam-Noise Ratio and Research on Passive Tracking Precision[J]. Acta Electronica Sinica, 2009, 37(9): 1895-1899 |
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| Authors: | ZHANG Bo-yan LI Shao-hong |
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| Affiliation: | 1. School of Electronics and Information Engineering,Beihang University,Beijing 100191,China;2. No.23 Institute of the Second Academy,CASIC,Beijing 100854,China |
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| Abstract: | When passive tracking a jammer by a phased array active radar,the scattering power from scatters of the jammer enters the receiver through sidelobes,which is the main noise power to influence tracking precision.The formulas to calculate the jamming power from the jammer received by mainlobe and the scattering power from scatters of the jammer through sidelobes are derived.The characteristic of the jamming power received by searching beams outside certain space around the jammer is analyzed in detail and a n... |
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| Keywords: | anti-jamming technology passive tracking jam-noise ratio phased array radar |
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