摘要
针对雷达目标一维距离像的姿态敏感性和平移敏感性,直接将一维距离像用于目标识别很难取得好的识别效果,用目前的普遍做法进行目标识别存在计算量和存储量大的问题,提出把一维距离像作为随姿态变化的序列及强散射中心维数、目标特征尺寸、散射中心分布熵三个特征,并以这三个特征采用外场实测数据进行目标识别实验,取得了较好的识别效果。
Range profile of radar target shows the range bin structure of targets, so it is applied abroad in highresolution radar target recognition; but range profile is sensitive to the pose of targets, so it is very hard to obtain a satisfactory result to apply range profile to target recognition directly. Range profile is viewed as a sequence which changes with pose of targets, and three new concepts： strong scattering center dimension, target feature size and scattering center distribution entropy are put forward. Then, we use these three features to idcntify targets based on real data and obtain a good result.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2005年第7期1173-1174,1191,共3页
Systems Engineering and Electronics
基金
国家"863"高技术计划基金资助课题(2002AA731200)
关键词
高分辨
目标识别
一维距离像
特征提取
high-resolution
targct recognition
profile
feature extraction
