SISAR侧影像的校正及特征提取
Calibration and extraction of features for SISAR shadow image
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摘要: 在分析SISAR侧影像成像机理的基础上,首先分析了目标相对于雷达的非匀速转动对目标侧影像的影响,同时提出了补偿的方法,然后分析了目标运动参数对侧影像的影响,在此基础上提取了用于目标识别的不变性特征,同时提出了目标识别的方法。最后通过仿真验证了所提方法的正确性。
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关键词:
- 侧影逆合成孔径雷达; 侧影像; 目标识别
Abstract: Based on an analysis of the principle SISAR shadow imaging, the effect on target shadow image due to nonconstant velocity rotation relative to the target is first examined, and a compensation method is also presented. In addition, the effect on target shadow image due to target motion parameters is described. Eventually, a target recognition approach on the basis of the invariable parameters obtained is proposed. The computer simulations show the efficiency of the method. -
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