火炮回转半径测边网检测法及其误差分析  

Measurement method and error analysis of artillery rotation radius by trilateration network

作　　者：霍李[1] 王媛[1] 赵黎兴[1] 

机构地区：[1]中国白城兵器试验中心,吉林白城137001

出　　处：《中国测试》2016年第11期27-30,共4页China Measurement & Test

基　　金：国家军用标准修订项目(14ZS021);试验技术理论研究(12-sy14)

摘　　要：为提高火炮回转半径的测量精度,提出一种五垂点测边网检测方法,并对各误差源进行分析。首先,在火炮检测现场布设5个垂点的测边网;然后,通过测边网条件平差的方法对测量边长值进行平差处理,得到各测量边长的平差值;最后,用测量边长的平差值计算各点的相对坐标,并通过圆拟合得到火炮回转半径值。采用蒙特卡洛方法对各误差源进行模拟的结果表明:当标记点分布不均匀的角度均方差≤8°、火炮调平的角度均方差≤2°、铅垂摆动幅度和边长的测量均方差均不大于5 mm时,火炮回转半径的测量均方差≤3 mm。模拟结果验证该方法的可行性和有效性。In order to improve the measurement accuracy of the artillery rotation radius, a kind of method based on trilateration network with five vertical points was proposed, and the error sources were analyzed. Firstly, the trilateration control network with 5 vertical points was established in the testing field. Secondly, the adjustment value of every side was acquired by use of the method of trilateration network condition adjustment. Finally, the relative coordinates of each point was calculated by using the adjustment value of every side, and the artillery rotation radius value was obtained by use of the circle fitting. The simulation results come from Monte Carlo method show that when the angle measurement of marking the no- uniform distribution of the mean square deviation is not more than 8°, the artillery adjustment flat angle of mean square deviation of not more than 2°, the plumb swing amplitude and the side length of the measurement variance were not more than 5 mm, artillery rotation radius of the measured mean square error is less than 3 mm. The results show that the method is feasible and available.

关 键 词：工程测量技术 火炮回转半径 测边网 蒙特卡洛方法 

分 类 号：P221[天文地球—大地测量学与测量工程]