| 复杂背景中的运动目标回波仿真计算 |
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| 引用本文： | 任红梅,肖志河,袁晓峰.复杂背景中的运动目标回波仿真计算[J].系统工程与电子技术,2006,28(3):336-338. |
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| 作者姓名： | 任红梅 肖志河 袁晓峰 |
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| 作者单位： | 1. 目标与环境电磁散射辐射国防科技重点实验室,北京,100854;中国传媒大学通信工程系,北京,100024
2. 目标与环境电磁散射辐射国防科技重点实验室,北京,100854 |
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| 摘 要： | 针对窄带相参体制的脉冲雷达波形,建立了杂波干扰反射复杂背景环境下直线飞行的空中目标机体反射信号和二次调制信号的模型,研究了发射波形同目标与环境相互作用的电磁散射机理。该模型中的复杂背景包括地杂波下垫面的干扰反射信号和空间分布反射体的干扰反射信号。根据给定的目标建模算法和干扰反射杂波模型,模拟了不同信杂比下螺旋桨飞机和喷气式飞机的雷达回波,仿真结果表明,这两种目标具有不同的频谱结构,证明了给出的模型是有效的,为雷达系统提供了实用的回波仿真信号。
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| 关 键 词： | 干扰反射 杂波模型 统计特性 运动目标 |
| 文章编号： | 1001-506X(2006)03-0336-03 |
| 修稿时间： | 2005年1月4日 |
Simulation of the moving targets in the complex background |
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| REN Hong-mei,XIAO Zhi-he,YUAN Xiao-feng.Simulation of the moving targets in the complex background[J].System Engineering and Electronics,2006,28(3):336-338. |
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| Authors: | REN Hong-mei XIAO Zhi-he YUAN Xiao-feng |
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| Abstract: | To study the electromagnetic scattering mechanism of radar wave interacting with target and surroundings,a modeling method aimed at the moving target with propeller blades in a complex disturbed air background is presented according to the coherent pulse waveform of the narrowband radar.The disturbed signals include clutter from ground and space,such as cloud and rain.The return signal from propeller aircraft and jet plane in different SNR is simulated based on the statistic model of the disturbed clutter,and the calculated results are analyzed and compared.The results show that the model presented is valid and provides a useful simulated signal for the radar system. |
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| Keywords: | disturbed clutter clutter model statistic model moving target |
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