测速定轨中的递推样条滤波算法  

Recursive Spline Filter Algorithm for Orbit Determining Utilizing Range Rate

作　　者：刘也[1] 时信华[2] 朱炬波[3] 梁甸农[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,长沙410073 [2]北京跟踪与通信技术研究所,北京100094 [3]国防科学技术大学理学院,长沙410073

出　　处：《信号处理》2010年第1期65-68,共4页Journal of Signal Processing

摘　　要：针对传统方法在全测速体制下实时处理能力不足,建立了基于递推样条模型的实时滤波算法。算法通过提高测量信息利用率,迭代更新模型参数以快速适应弹道的时变特性。仿真和实测数据的计算结果表明,算法鲁棒性较好,在平稳段落精度优于其它方法。算法就全测速体制的主动段弹道估计问题展开,但其原理具有一定的普适性。In respect that traditional methods have essential deficiency for orbit determining utilizing range rate only, filter based on reeursive spline modeling is derived. The filter can fit trajectory maneuvers effectively by iteratively recursive updating model parame- ters. Simulation and actual test indicate that the filter performs robustly, and has higher accuracy during smooth fragments than traditional methods. Although developed for boost phase and velocity measurements, the filter has universality in principle.

关 键 词：递推样条模型 测速定轨 实时滤波 

分 类 号：V421.4[航空宇航科学与技术—飞行器设计]