用于空中目标活动规律提取的空间曲线压缩算法  

Space curve compression algorithm to extract moving pattern of aerial targets

作　　者：汤景棉[1] 孙合敏[1] 李宏权[1] TANG Jingmian;SUN Hemin;LI Hongquan(Air Force EarlyWarning Academy,Wuhan 430019, China)

机构地区：[1]空军预警学院,武汉430019

出　　处：《空军预警学院学报》2017年第1期31-35,共5页Journal of Air Force Early Warning Academy

摘　　要：为了实现对空中目标自动快速准确的判性,针对人工提取和曲线拟合等常规航线提取方法的不足,提出了基于空间曲线压缩算法的空中目标航线提取算法.根据空中目标航迹的特点,使用合并提取法、垂距提取法和分裂提取法分别从长期积累的大量的航迹数据中将某一目标的飞行航线提取出来;对空间曲线压缩算法进行改进,将其从三维的空间计算降为二维的空间计算,从而降低了计算的复杂度.使用真实航迹数据的测试结果表明,三种提取算法在运行时间、压缩效率以及距离平均差方面各有优缺点,可以满足不同应用场合对距离精度、压缩效果或运行时间的需求.In order to judge the aerial targets’property automatically rapidly and accurately, aiming at the shortcomings of such conventional air-route extraction methods as manpower, curve fitting and so on, this paper presents an algorithm of extracting aerial targets routes based on space curve compression algorithm. According to the characteristics of aerial targets tracks, the paper adopts method of united extraction, vertical-distance extraction and division extraction to extract the route of a certain flying object from abundant long-time accumulated trajectory data. In the paper, space curve compression algorithm is meliorated and three-dimensionalspace calculation is decreased to two-dimensional calculation, hence the computation complexity reduced. The test outcome by using the real trajectory data shows that the three extraction algorithms have different advantages in the aspect of running time, number of compressed points and average distance errors, which is able to meet the different application requirements about distance accuracy, compression effect and running time.

关 键 词：雷达情报 航线提取 空中目标活动规律 垂距法 合并法 分裂法 

分 类 号：TN958[电子电信—信号与信息处理]