| 机载脉冲多普勒雷达DBS成像实验研究 |
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| 引用本文： | 孙泓波,顾红,苏卫民,刘国岁.机载脉冲多普勒雷达DBS成像实验研究[J].数据采集与处理,2001,16(4):423-427. |
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| 作者姓名： | 孙泓波 顾红 苏卫民 刘国岁 |
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| 作者单位： | 南京理工大学电子工程技术研究中心, |
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| 基金项目： | 雷达信号处理国防科技重点实验室基金(编号:99JS01.4.1.DZ2401)资助项目. |
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| 摘 要： | 脉冲多普勒雷达是现代战斗机普遍采用的一种典型雷达体制。多普勒波束锐化（DBS）已成为机载脉冲多普勒雷达在空／地工作模式中对地面进行高分辨成像的有效途径，因而受到了国内外广泛的重视。本文首先分析了DBS技术的基本原理及其实现步骤，针对载机惯导参数误差较大的实际情况，应用本文提出的新的多普勒质心估计算法－－“曲线拟合相位较正叠代算法”，对某型脉冲多普勒雷达的实测数据进行了成像处理实验研究，给出了实测数据的DBS成像结果，证明了处理过程的有效性。
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| 关 键 词： | 多普勒波束锐化 雷达成像 机载脉冲多普勒雷达 DBS 信号处理 |
| 文章编号： | 1004-9037(2001)04-0423-05 |
| 修稿时间： | 2001年1月12日 |
Experimental Research of DBS Imaging Based on Airborne Pulse Doppler Radar |
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| Sun Hongbo Gu Hong Su Weimin Liu Guosui Research Center of Electronic Engineering Technology,Nanjing University of Sci and Tech Nanjing ,P.R.China.Experimental Research of DBS Imaging Based on Airborne Pulse Doppler Radar[J].Journal of Data Acquisition & Processing,2001,16(4):423-427. |
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| Authors: | Sun Hongbo Gu Hong Su Weimin Liu Guosui Research Center of Electronic Engineering Technology Nanjing University of Sci and Tech Nanjing PRChina |
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| Affiliation: | Sun Hongbo Gu Hong Su Weimin Liu Guosui Research Center of Electronic Engineering Technology,Nanjing University of Sci and Tech Nanjing 210094,P.R.China |
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| Abstract: | The pulse Doppler (PD) radar is a kind of classic radar which has been furnished in the modern fighters. Doppler beam sharpening (DBS) is an effective technique to construct the high resolution ground images of airborne PD radar in its air to ground mode. Therefore, DBS technique has attracted many attentions around the world. In this paper, the basic theory and steps of the implementation of DBS imaging are introduced at first. According to the fact that the inertial navigation units (INU) measurement errors are rather large, a new Doppler centroid estimation algorithm (curve fitting iterative technique (CFIT)), is applied to the processing of raw data collected by an experimental PD radar and the experimental research is made. Some DBS images based on the raw radar data are presented. The imaging results prove the effectiveness of processing procedure. |
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| Keywords: | pulse Doppler radar Doppler beam sharpening radar imaging |
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