基于修正随机HOUGH变换的快速航迹起始研究  

Research of Fast Track Initialization Based on Modified Random Hough Transform

作　　者：吴泽民[1] 任姝婕[2] 倪明放[1] 

机构地区：[1]解放军理工大学通信工程学院,南京210007 [2]解放军理工大学理学院,南京210007

出　　处：《系统仿真学报》2009年第5期1447-1450,共4页Journal of System Simulation

摘　　要：分析了随机Hough变换在特征点合并时的缺陷。以二维雷达为例,通过对特征点计算公式的分析,得到了特征点坐标误差方差的计算方法,并以假设检验为基础,获得了特征点合并的自适应方法。描述了雷达样点保存的数据结构,给出了完整的基于修正Hough变换的航迹起始算法。通过仿真验证,修正随机Hough法的性能比标准Hough法要好。而且,每次数据扫描的处理时间明显减少,这对多目标密集杂波的处理环境非常重要。The drawback in candidate point merging of random Hough transform was discussed. Based on analyzing the process to calculate candidate point, the way to get error variance of candidate point was found for 2D radar. Using hypothesis test, an adaptive method for candidate point merging was introduced. The data structure to store radar samples was also described, which helped understanding the complete track initialization algorithm using modified random Hough transform. Through simulation, modified random Hough method was verified to have better performance than standard Hough transform. What＇s more, the processing time for each data scan was reduced too much, which is very important for multi-target and dense clutter environment.

关 键 词：随机HOUGH变换 航迹起始 假设检验 目标跟踪 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]