目标解算中的原点垂线偏差问题分析  

Analysis of Plumb Line Deviation of Launching Point in Target Solution

作　　者：牟志华[1] 黄瑜[1] 张慧娟[1] 

机构地区：[1]中国人民解放军91550部队

出　　处：《弹道学报》2008年第2期67-69,共3页Journal of Ballistics

摘　　要：为分析原点垂线偏差对目标解算结果的影响,针对连续波雷达测量系统,采用最小二乘法推导了多站交会逐点解算公式.对原点有无垂线偏差2种情况,用仿真数据分别计算了在发射系下的测站站址坐标,发现原点垂线偏差对站址坐标有影响,通过站址坐标的误差传递,影响到最小二乘解算结果.分别对目标进行解算,对2种结果作差,分析残差图.结果表明,目标距离发射原点越远,垂线偏差对解算结果影响越大.In order to analyze the influence of plumb line deviation of launching point on target solution result, the formula for point-by-point multi-station crossing was deduced by the least squares estimate aiming at continuous wave radar measurement system. As to two cases whether launching point has plumb line deviation or not, the site location coordinates in launching system was calculated by using simulation data. Plumb line deviation of launching point has influence on site location coordinates, and the result of the least squares estimate was influenced by error transfer of site location coordinates. By calculating target separately, two target solutions were compared, and the error graph was analyzed. The result shows that the farther the target from the launching point, the bigger influence of plumb line deviation of launching point on the calculation result.

关 键 词：目标解算 垂线偏差 连续波雷达 最小二乘 

分 类 号：V557.5[航空宇航科学与技术—人机与环境工程]