引信对稀疏丛林多普勒波束锐化成像与仿真方法  

Sparse Jungle DBS Imaging Method and Simulation of Radio Fuze

作　　者：郭蒙 陈楠祺 张珂[1] GUO Meng;CHEN Nanqi;ZHANG Ke(Xi'an Institute of Electromechanical Information Technology,Xi'an 710065,China)

机构地区：[1]西安机电信息技术研究所,陕西西安710065

出　　处：《探测与控制学报》2024年第3期10-16,共7页Journal of Detection & Control

摘　　要：为了克服对地打击无线电引信对稀疏丛林地形地貌成像能力不足问题,将雷达成像技术应用于对地打击无线电引信,提出引信对稀疏丛林的多普勒波束锐化成像与仿真方法。首先,分析无线电引信俯冲姿态成像几何关系;其次,对树木建立计算机仿真模型,进而得到仿真的回波数据;最后,对回波数据实施距离向压缩、多普勒中心估计、距离走动校正、俯仰向快速傅里叶变换等算法操作,得到无线电引信对稀疏丛林的多普勒波束锐化成像仿真结果。通过在计算机中构造多个稀疏丛林起伏地貌场景,对所提成像方法进行仿真验证。实验结果表明,该方法对稀疏丛林成像效果良好,成像结果可以为引信用地形地貌智能识别算法的开发提供数据支撑,促进对地打击无线电引信识别与毁伤技术的发展。In order to overcome the problem of insufficient imaging capability of ground-strike radio fuzes for sparse jungle terrain,radar imaging technology was applied to ground-strike radio fuzes,and a Doppler beam-sharpened imaging and simulation method of fuzes for sparse jungle was proposed.Firstly,the geometrical relationship of radio fuze swooping attitude imaging was analyzed.Then,a computer simulation model was established for the trees,and then the simulated echo data was obtained.Finally,algorithmic operations such as distance-directed compression,Doppler center estimation,distance-walk correction,and pitch-directed fast Fourier transform were implemented on the echo data to obtain the Doppler beam-sharpened imaging simulation results of the radio fuze for sparse jungle.The proposed imaging method was validated by constructing several sparse jungle undulating terrain scenes in the computer.The simulation results showed that the proposed imaging method had good effect on the imaging of sparse jungle,and provided data support for the development of intelligent recognition algorithms of topography and geomorphology for fuzes,and promoted the development of the identification and destruction technology of radio fuzes used in earth strikes.

关 键 词：DBS成像 无线电引信 丛林成像仿真 

分 类 号：TJ43[兵器科学与技术—火炮、自动武器与弹药工程]