坐标系选取对压制兵器射击准确度的影响分析  

Influence Analysis of Coordinate Selection on Artillery Equipment Shooting Accuracy

作　　者：张卫民 王彤 崔键 ZHANG Wei-min;WANG Tong;CUI Jian(China Institute of Weapon Industry Navigation and Control Technology,Beijing 100089,China)

机构地区：[1]中国兵器工业导航与控制技术研究所,北京100089

出　　处：《火力与指挥控制》2018年第11期91-97,共7页Fire Control & Command Control

摘　　要：分析了在大地坐标系和平面直角坐标系中计算炮目距离和方向的差别。定量分析了高斯投影变形引起的计算误差,及其对射击准确度的影响,给出了修正方法和计算实例。分析结论表明,由于投影变形,在平面直角坐标系下计算炮目距离和方向时对射击准确度有一定的影响,应视情况予以修正,修正后的计算误差可忽略。计算实例表明,炮目距离不大于200 km时,采用高斯平面直角坐标系计算炮目距离和方向并进行修正,是计算炮目距离和炮目方向既快捷又能保证精度的方法。The difference between using the space geodetic coordinate system and the plane rectangular coordinate system while calculating gun-target distance and gun-target direction is analyzed.Quantitative analyses the calculating error of Gauss projection distortion and the influence of shooting accuracy.The correcting method of calculating and computing example is showed.As an answer,because the projection distortion of the plane rectangular coordinate system has some influence on calculating target distance and direction,and some influence on shooting accuracy,so the calculating answer should be modified,and computing error could be ignored after modification.As the real example showed,if the gun-target distance is less than 200 km,the method of using the Gauss plane rectangular coordinate system to calculating and modified gun-target distance and gun-target direction could be faster and accuracy guaranteed.

关 键 词：炮兵作战 坐标系统 投影变形 炮目距离 炮目方向 

分 类 号：TJ399[兵器科学与技术—火炮、自动武器与弹药工程]