航空学报 > 1994, Vol. 15 Issue (11): 1348-1356

多卜勒波束锐化运动补偿方法的研究

张庆文, 张剑云   

  1. 西安电子科技大学电子工程研究所,西安,710071
  • 收稿日期:1993-05-24 修回日期:1994-01-18 出版日期:1994-11-25 发布日期:1994-11-25

THE STUOY OF MOTION COMPENSATION FOR DOPPLER BEAM SHARPING

ZhangQingwen, Zhang Jianyun   

  1. Institute of Elec. Eng.Xidian University, Xi’an,710071
  • Received:1993-05-24 Revised:1994-01-18 Online:1994-11-25 Published:1994-11-25

摘要: 载机在空中的任何机动行为都会使多卜勒波束锐化(DBS)性能下降,严重时甚至失效。针对DBS工作特点,对所需的运动补偿方法,进行了深入的分析与研究,给出了运动补偿的一般方法,同时还提出了一种新的用载机在雷达视线(LOS)上的投影速度来实时控制脉冲重复周期(PRF)的相位补偿方法,并对该方法的精度及其对惯导系统(INS)的容差范围作了分析。最后给出了模拟结果。

关键词: 脉冲多卜勒雷达, 波束, 运动-补偿

Abstract: Any platform motion error,which is defined as the error between the actual flight path and the nominal one,can degrade the perfonnanee of Doppler Beam Sharping(DBS),even mak-ing DBS fail to work.The method of motion compensation for DBS is deeply analysed and stu-died,and a general motion compensation scheme is deseribed.A novel method of phase compen-sation in DBS is proposed,which compensates the echo phases by adjusting Pulse Repetition Frequency(PRF)according to the velocity projected on the light of sight(LOS).Besides,the tol-erance of the method is also analysed.At last,the results of simulation are given.

Key words: pulse Doppler radar, beam, motion-compensation

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