| 机载脉冲多普勒雷达DBS技术 |
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| 引用本文： | 周荫清.机载脉冲多普勒雷达DBS技术[J].航空学报,1988,10(12):574-581. |
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| 作者姓名： | 周荫清 |
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| 作者单位： | 北京航空航天大学 |
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| 摘 要： | 本文从多普勒谱分辨理论出发,分析了DBS成象的基本原理,实现DBS成象的实时信号处理过程,提出了DBS实时数字信号处理方案。通过计算机模拟试验表明,在雷达天线保持匀速扫描状态时,系统的多普勒波束锐化比可达17.4:1左右,并可对载机前方±15°—60°方位范围内提供一幅大面积的,高分辨力的扇形雷达图象。
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| 收稿时间： | 1987-10-19; |
DOPPLER BEAM SHARPING TECHNIQUE FOR AIRBORNE PULSE DOPPLER RADAR |
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| Beijing University Aeronautics and Astronautics Zhou Yinqing.DOPPLER BEAM SHARPING TECHNIQUE FOR AIRBORNE PULSE DOPPLER RADAR[J].Acta Aeronautica et Astronautica Sinica,1988,10(12):574-581. |
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| Authors: | Beijing University Aeronautics and Astronautics Zhou Yinqing |
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| Institution: | Beijing University Aeronautics and Astronautics Zhou Yinqing |
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| Abstract: | This paper analyses the basic principle of Doppler beam sharping radaf imaging and it's real-lime signal processing procedure,on the basis of Doppler resolution theory,Then, a real-time digital signal processing scheme of Dopoler beam sharping is developed. Computer simulation results show that the Doppler beam sharpened ratio of the system can reach 17.4 :1 ,a large area of sector radar image with high resolution can also be provided within the range of an angle of ±150°-600° in front of airborne radar when the radar antenna keeps uniform scanning speed. |
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| Keywords: | Pulse Doppler radar Doppler beam sharping technique Doppler fil ter Real-time signal processing |
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