掠地弹全弹道速度测量数据处理方法  

A Method for Data Processing of Whole Trajectory Velocity Measurement of Ground Skimming Projectile

作　　者：张焱[1,2] 卫青春[2] 周健[3] 赵华敏[2] 

机构地区：[1]西安电子科技大学,陕西西安710071 [2]中国电子科技集团公司第五十四研究所,河北石家庄050081 [3]遥感信息研究所,北京100192

出　　处：《无线电工程》2011年第7期36-38,共3页Radio Engineering

摘　　要：分析了掠地火箭弹全弹道运动规律,给出了不同弹道段的多项式数据模型,基于变量差分法确定多项式阶数,由最小二乘法计算多项式系数。采用正交多项式进行平滑、滤波、预测及数据合理性检验,并通过径向速度修正和数据融合,得到更高精度的测速数据。在此基础上开发了数据处理软件,对实弹射击采集数据进行了处理。试验结果表明,该算法平滑滤波后数据误差明显降低,数据精度有较大的提高。因此,该数据处理方法是有效的。Whole trajectory motion rule of ground skimming rocket projectile is analyzed.Polynomial data model of different trajectory section is proposed,in which the variable difference method is used to determine polynomial order and the least square method is applied to compute polynomial coefficients.Smoothing,filtering,prediction and data rationality checking are carried out by orthogonal polynomial.Moreover,velocity measurement data with higher precision are got by radial velocity updating and data fusion.On the basis of this,data processing software is developed and used to process collection data by ball firing.Experimental results show that after smoothing and filtering,standard deviation is decreased and data precision is improved.Therefore,the data processing method is effective.

关 键 词：全弹道 测速 动力学模型 数据处理 

分 类 号：TJ06[兵器科学与技术—兵器发射理论与技术]