Object’s velocity effect on pulse to pulse frequency shifting RCS measurement
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摘要: 研究了在脉间变频格式目标雷达散射截面(RCS)测试中目标径向速度对测试结果的影响.从目标像位置偏移和目标像发散两个方面分析了目标径向速度造成RCS测试结果误差的原因,进行了计算机仿真,给出速度与误差的数值关系.通过对仿真数据的分析,提出减小RCS测试误差的方法.根据双通道雷达能够同时在两个频段上对同一目标进行测试的特点提出了一种校正被测目标径向速度影响的方法,并用该方法对BHEML-1型雷达的外场实测数据进行了处理和分析比较.Abstract: Object's radial velocity effect on object’s radar cross section (RCS) outdoor measurement with pulse to pulse frequency shifting radar was researched. The cause of object's radial velocity make RCS measurement results inaccurate were analyzed from the aspects of object-imaging's position shifting and profile distortion. The numerical relationship between the velocity and RCS measurement error was presented using computer simulation. A method to reduce the RCS measurement error was presented base on these analysis. A method to correct the object's velocity effect was discussed bases on the architecture that the two-channels radar can measure the target on two different frequency band in the same time. The method was used to deal with the measurement data of BHEML-1 radar and the results were analyzed and compared.
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[1] Wehner D R. High resolution radar[M]. Norwood:Artech House, 1987.5,7 [2] 王振荣, 文宏武. 脉间变频格式高距离向分辨力成像方法中系统误差的研究[J]. 电子学报, 1995, 23(12):82~85 Wang Zhenrong, Wen Hongwu. Research on system error of high range resolution imaging by means of pulse to pulse frequency shifting[J]. Acta Electronica Sinica, 1995, 23(12):82~85(in Chinese) [3] Gill G S. Simultaneous pulse compression and Doppler processing with step frequency waveform[J]. Electronics Letters, 1996, 32(23):2178~2179 [4] 李海英, 杨汝良. 径向速度对频率步进雷达目标距离像影响分析[J]. 电子与信息学报, 2003, 25(5):592~597 Li Haiying, Yang Ruliang. Analysis of radial velocity effect on range profile of stepped-frequency waveform[J]. Journal of Electronics and Information Technology, 2003, 25(5):592~597 (in Chinese) [5] Mensa D L. High resolution radar imaging[M]. Norwood:Artech House, 1981 -
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