摘要
针对低空飞行平台阵列天线对地测高问题,提出了一种基于极化特征的地貌识别策略。该策略主要对探测波束范围内地表与地物进行区分,对于具有明显区分度的探测区域,利用极化旋转不变参数对地物进行特征分析;对于不具有明显区分度的探测区域,利用极化回波重构技术进行判定。并结合FastICA算法获得探测区域方位信息,使平台具备高精度的目标定位能力。仿真实验验证了该策略的可行性与优越性,在干扰存在时也能准确区分地表与地物。
Aiming at the problem of airborne array antenna,a ground objects recognition strategy based on echo polarization characteristics has been proposed in this paper.Novel measurement scheme is urgently needed to enhance the accuracy of height measurement.The strategy mainly distinguishes the surface and ground objects within the range of the detected beam,in the condition of detection area with apparent division,the polarimetric rotation invariant parameters are used to analyze the features of ground objects.On the other hand,in the condition of detection area without apparent division,the polarimetric echo reconstruction technology is used to determine the surface.Simulation experiments show the feasibility and superiority of the proposed strategy,compared with the traditional height measurement system.When the oppressive interference is existed,it can also accurately measure the height of the projectile to the ground.
作者
同晓荣
TONG Xiao-rong(Network Security and Informatization College,Weinan Normal University,Weinan 714099,China)
出处
《火力与指挥控制》
CSCD
北大核心
2020年第5期51-57,共7页
Fire Control & Command Control
基金
教育部产学合作协同育人项目(201702030020,201801082110)
陕西省教育厅科研计划项目(18JK0286)
渭南师范学院教育教学改革研究项目(JG201704,JG201525)
渭南师范学院特色学科建设项目电子信息(计算机技术)硕士学位点建设项(18TSXK06)。
关键词
极化特征
炸高测量
阵列天线
回波重构
旋转不变参数
polarization characteristics
burst height measurement
array antenna
echo reconstruction
rotation invariant parameter
