| 摘要: |
| 针对战场典型复杂微动目标的检测问题，提出了一种基于能量聚焦的微动目标检测方法。首先对3种复杂微动目标雷达回波的微多普勒特性进行了建模和仿真，分析了回波多普勒的频域和时频域特性，提取了雷达回波多普勒时频分析数据的能量聚焦特性，并提出了一种基于能量聚焦的广义似然比微动目标检测器。数值仿真表明，在不同的信噪比和虚警概率条件下，该检测器均可实现对3种复杂微动目标的有效检测。 |
| 关键词: 微动目标 雷达回波 广义似然比检测 能量聚焦 |
| DOI： |
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| 基金项目:国防装备预研项目(40405050302) |
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| Modeling and detection of typical complex micro-motion targets |
| CHEN Lei,LI Xingguang,CHEN Dianren |
| () |
| Abstract: |
| In order to detect the typical complex micro-motion targets in battlefield,a micro-motion targets detection method based on energy focusing is proposed. First,the models of three complex micro-targets are established and simulated,their frequency-domain and time-frequency domain characteristics are analyzed,the frequency energy focusing characteristics of the echo time-frequency data are extracted.Then,a generalized likelihood ratio test(GLRT) detector for micro-motion targets based on energy focusing efficiency is proposed.The numerical simulation shows that the GLRT has a good performance under different echo signal-to-noise ratio(SNR) and false alarm probability conditions. |
| Key words: micro-motion targets radar echo generalized likelihood ratio test(GLRT) energy focusing |
