The New Numerical Differentiation for Ballistic Determination

摘要：

　　In the measuring system of modern shooting ranges, numerical differentiation, which is key to the process of external ballistic measurement determination of carrier rockets, must be adopted for calculating kinematic velocity and acceleration parameters of carrier rockets by means of optical and radar measurement data.As existing numerical differentiation is not steady enough, the loss function is improved by fitting differential algorithm and this paper establishes a new steady fault-tolerant numerical differentiation with relatively high accuracy and fault-tolerant ability, so as to improve and enrich high-accuracy external ballistic measurement computing technology.The simulation results show that new numerical differentiation technique has high accuracy and practical engineering value.

关键词： Numerical differentiation Ballistic determination Steady fitting differential Fault-tolerant

作者: Min Chai Min Wang Tiening Nie Si Shen

作者单位: State Key Laboratory of Astronautic Dynamics, Xian 710043, China;Xian Satellite Control Center, Xi Xian Satellite Control Center, Xian 710043, China

会议类型: 国际会议

会议名称: The 27th Conference of Spacecraft TT&C Technology in China(第27届中国飞行器测控学术会议)

会议地点: 广州

会议语种:英文

页码: 281-290

在线出版日期: 2014-11-09（万方平台首次上网日期，不代表论文的发表时间）