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基于一维距离像序列的雷达目标微动参数估计
Micro-Motion Parameter Estimation of Radar Target Based on High Range Resolution Profile Sequences
【摘要】 雷达目标微动参数估计是微动特征用于目标识别必须首先解决的一个问题。以典型的转动模型为例,分析了微动对一维距离像的影响,推导了不同情况下微动补偿需满足的精度要求,提出了利用自相关法、峰谷值检测法及单脉冲测角原理联合估计微动参数。仿真实验验证了所提算法在信噪比为-5 dB时仍有效。
【Abstract】 Micro-motion parameter estimation of radar target should be studied before its application in target recognition.The effect of micro-motion for high range resolution profile is analyzed based on typical rotation model,while the precision requested for micro-motion compensation is derived.Autocorrelation,peak-to-valley value detection combined with monopulse angle estimation are proposed to estimate micro-motion parameters.Computer simulation is given to prove the effectiveness of the methods in the condition of signal-to-noise ratio at-5 dB.
【关键词】 逆合成孔径雷达;
目标特征信息;
微动参数估计;
一维距离像序列;
目标识别;
【Key words】 ISAR; target feature information; micro-motion parameter estimation; high range resolution profile sequences; target recognition;
【Key words】 ISAR; target feature information; micro-motion parameter estimation; high range resolution profile sequences; target recognition;
【基金】 运城学院院级项目(YQ-2011034)~~
- 【文献出处】 电讯技术 ,Telecommunication Engineering , 编辑部邮箱 ,2013年04期
- 【分类号】TN957.51
- 【被引频次】7
- 【下载频次】116