摘要
针对弹道变化曲率较大时采用微分平滑公式计算速度和加速度等特征点参数会产生较大截断误差的问题,论述了误差产生的原理,分析了截断误差对弹道参数精度的影响以及对特征点参数进行误差补偿的必要性,介绍了截断误差的补偿方法,提出了用理论弹道对测量船外测数据进行误差补偿的算法。通过任务实测数据试算,补偿后的数据精度明显提高,证实了对弹道参数进行截断误差补偿的有效性和可行性。
The higher truncation error will be brought when using differential coefficient formula to calculate speed and acceleration with large change of trajectory curvature. Aiming at this problem, this paper discusses the principle causing error. The influence of truncation error for the precision of trajectory data and the needs of compensation for character data is analyzed. The compensation methods of truncation error are described, the method that uses theory trajectory data to compensate the speed and acceleration for data of trajectory is proposed, and the data precision is boost through test data of task. The result proves the effectiveness and feasibility of compensation to truncation error for trajectory.
出处
《无线电工程》
2011年第8期9-11,共3页
Radio Engineering
关键词
截断误差
理论弹道
平滑
补偿
truncation error
theory trajectory
smooth
compensation
