| 基于合成孔径原理目标散射测量中的运动误差补偿 |
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| 引用本文： | 刘丹丹,唐劲松,王铮,马庆忠.基于合成孔径原理目标散射测量中的运动误差补偿[J].海军工程大学学报,2009,21(5). |
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| 作者姓名： | 刘丹丹 唐劲松 王铮 马庆忠 |
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| 作者单位： | 刘丹丹,唐劲松(海军工程大学,电子工程学院,武汉,430033);王铮,马庆忠(91024部队,广东,台山,529267) |
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| 基金项目： | 国家863计划资助项目，国防科技重点实验室延伸性发展基金资助项目 |
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| 摘 要： | 在应用基于合成孔径原理的水下目标散射特性测量新方法时,目标总会存在偏离匀速直线的运动误差,导致图像散焦甚至无法成像,从而不能得到目标二维散射特性.针对上述问题,从水下目标的六自由度运动误差入手,分析运动误差对成像的影响,采用基于运动测量系统的逐点运动补偿方法对回波信号进行处理,给出了计算机仿真试验结果.仿真试验得到了较好的成像结果,验证了运动补偿的有效性.
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| 关 键 词： | 合成孔径 目标散射特性测量 运动误差 运动补偿 |
On motion compensation in target scattering measuring based on synthetic aperture principle |
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| Abstract: | When the new method of measuring the scattering characterization for underwater targets based on synthetic aperture principle is applied practically, the target has always motion errors relative to the ideal motion, which requires the target move along the straight line at a constant velocity. The motion errors result in the imagery not focusing or realizing, and consequently, the 2-D scattering characterization can not be obtained. In order to solve the above problems, the effects of the six-degree-of-freedom motion errors on imaging were analyzed. Then the pixel-by-pixel motion compensation method based on motion measuring system was used to process the echo, and the computer simulation test results were presented. A good imaging result of the simulation shows that the motion compensation is valid. |
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| Keywords: | synthetic aperture measuring of target scattering characterization motion error motion compensation |
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