多雷达含缺损信息外弹道解算方法研究

姜大治,王不了,杨军

(92941部队,辽宁 葫芦岛 125000)

摘要:为解决雷达测量信息受地、海杂波的强烈干扰,导致雷达俯仰角测量难以构成有效闭环,目标俯仰角信息超差严重,并通过坐标系变换,向目标各维坐标传导超差信息的问题,该文综合考虑地、海杂波对方位角和斜距信息影响较小,以及海上靶场雷达测量网的布站特点,提出了一种利用多台雷达共有段落的方位角和斜距信息,构建联合处理模型,解算目标弹道的方法。数据测试证明,该方法可以有效解决雷达部分测量信息超差问题,提高靶场雷达测量数据处理的精度和可靠性。

关键词:雷达测量;杂波干扰;数据处理;外弹道

收稿日期:2013-11-13

作者简介:姜大治(1977- ),男,工程师,硕士,研究方向为外测数据建模与处理。E-mail:jdzandwy@sina.com。

中图分类号:TN959.6文献标识码:A

ResearchonAlgorithmforMultiradarTrajectoriesWithDefectInformation

JIANGDa-zhi,WANGBu-liao,YANGJun

(Unit92941ofPLA,Huludao125000,China)

Abstract:The radar measurement is interfered by the clutter of earth and sea,and the measurement of pitch angle is difficult to form an effective closed-loop,and the pitch angle information seriously exceeds the error tolerance,and transmits the error to every coordinates of the target through coordinate transformation.Aiming at this problem,the features of the radar distribution of sea range and the earth were taken into account,as well as the problem that the sea clutter information has less affect on azimuth and slope,and a combined processing model and algorithm were presented based on the common section of azimuth and slope information of multiradar.Test data show that this method can effectively solve the radar partial measurement information error tolerance problems and improve the precision and reliability of data processing of the measurement in sea range.

Keywords:radarmeasurement;clutter;dataprocessing;exteriortrajectory

随着微电子和计算机技术的高速发展,测量雷达在目标识别、抗干扰、过捷处理和高精度测量等方面都有较快发展,技术性能不断提高[1-3]。但是对于海上靶场陆海结合的复杂试验环境,如何完成对低空、大射程、小型化、高动态的导弹类目标的测量,对靶场雷达测量网是一个巨大挑战。为保证靶场雷达网的测量精度和可靠性,一般会在沿岸高点布设多部雷达。地形、杂波、遮挡和多路径等多种因素的干扰,以及测量雷达自身的开环跟踪模式,导致雷达俯仰角测量信息超差严重[5-7]。并且在雷达测量坐标系向目标发射坐标系或假定坐标系转换过程中,大量误差被传递到测量目标各维坐标中,使目标三维坐标均受到雷达俯仰角超差信息的影响。……