一种动态飞行155毫米榴弹类目标姿态视向角估计方法  

A method for estimating the posture aspect angles of dynamically flying 155 mm grenade target

作　　者：杨雪林 王西泉 曹龙 张旭斌 董斌 YANG Xuelin;WANG Xiquan;CAO Long;ZHANG Xubin;DONG Bin(Test and Measurement Institute of China North Industries Group, Huayin 714200, China)

机构地区：[1]中国兵器工业试验测试研究院,陕西华阴714200

出　　处：《兵器装备工程学报》2022年第S01期265-269,共5页Journal of Ordnance Equipment Engineering

摘　　要：针对动态飞行155毫米榴弹类目标的姿态视向角估计提出一种计算方法,即通过雷达测量动态目标空间位置计算弹道倾角;对弹丸在飞行过程中攻角变化的估计采用空间向量坐标法求解动态目标姿态视向角。根据求解出的目标姿态视向角的估计值,一一对应雷达测量的动态目标RCS数据,并与暗室测量视向角-RCS数据进行对比验证。该方法不需要增加额外测量设备便可实现姿态视向角最优估计。Posture aspect angle is an important parameter when describing target RCS measurement data,and the accurate estimation of aspect angle is very important in exterior ballistic testing.A calculation method is proposed for estimating the posture aspect angles of a dynamically flying 155 mm grenade target,that is,firstly calculate the ballistic inclination by the space position of the dynamic target measured by radar,and then estimate the change in the angle of attack of the projectile during the flight,finally using space vector coordinate method to calculate the aspect angles of the target posture.According to the estimated value of aspect angles of the target posture,the RCS data of the dynamic target measured by the radar is corresponded one by one,and compare with the darkroom measurement aspect angles-RCS data,the estimation results are highly consistent with the darkroom measurement data.This method does not need to add additional measuring equipment to realize the optimal estimation of the posture aspect angles,and also can provide a new idea for the estimation of the posture aspect angles of a dynamically flying of a actual flight target.

关 键 词：弹道倾角 攻角 空间向量 视向角 相关系数 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]