系统工程与电子技术
• 传感器与信号处理 • 上一篇 下一篇
赵晓彤, 郭琨毅, 盛新庆, 屈泉酉
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ZHAO Xiao-tong, GUO Kun-yi, SHENG Xin-qing, QU Quan-you
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摘要：
一般认为双基地雷达在前向散射区(双基地角为135°~180°)的RCS较其他方向更大,前向雷达的应用正是建立在此优势的基础上。然而某些实际场景下天线所接收的电磁波并非散射波,而是散射波与发射天线辐射波的复矢量叠加。由于相位和电磁场极化方向的差异,总场表现出与散射场不同的变化特性。用全波法计算了扩展目标分别在近场、远场观测条件下前向区散射场、总场随距离和方位的变化,分析和总结了总场与散射场的数值特性差异。
Abstract:
Lots of applications are based on the bistatic radar system for its enhanced radar cross section (RCS) when the transmitter works on the forward scattering area (bistatic angle is larger than 135°). For radar in some practical situation, echoes include scattering signal and incident signal at a considerable range of the bistatic angle. The total field differs with the scattering field in many characteristics like phase, which will have influence on the applications of the forward scatter radar (FSR). The echoes of some FSR objects are simulated when the bistatic angle and distance between the receiver and the object changes. The echoes composition and characteristics are analyzed and the drawbacks of the shadow theory will be listed.
赵晓彤, 郭琨毅, 盛新庆, 屈泉酉. 前向雷达目标回波成分与特性分析[J]. 系统工程与电子技术, doi: 10.3969/j.issn.1001-506X.2016.11.12.
ZHAO Xiao-tong, GUO Kun-yi, SHENG Xin-qing, QU Quan-you. Characteristics analysis on forward scattering radar echoes[J]. Systems Engineering and Electronics, doi: 10.3969/j.issn.1001-506X.2016.11.12.
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链接本文: https://www.sys-ele.com/CN/10.3969/j.issn.1001-506X.2016.11.12
https://www.sys-ele.com/CN/Y2016/V38/I11/2523
