箭载GPS实时定轨精度估计  

The Precision Estimate for Real-time Trajectory Determination Using On-board GPS

作　　者：赵树强[1] 许爱华[2] 

机构地区：[1]西北工业大学计算机学院,陕西西安710072 [2]西安卫星测控中心,陕西西安710043

出　　处：《全球定位系统》2006年第2期19-22,共4页Gnss World of China

摘　　要：对火箭或导弹的跟踪,箭载GPS接收机无法给出单历元实时定位精度。将最小二乘法应用于解算GPS定位方程,并对其进行精度估计,提出了一种新的星座选择算法。通过实测数据计算表明,该方法满足定轨精度要求,且简单、实用,具有很好的应用前景。It can＇t give a single point real-time positioning precision for GPS receiver onboard in tracking missile and rocket. We apply the least squares estimate to calculate GPS single point positioning equation and precision estimate, and put forward the new satellites~ constellation choice algorithm. The computed result of flying experiment data indicates that this method can satisfy the requirement of positioning precision. At the same time, this method is simple and practical and has a wide application prospect.

关 键 词：GPS 最小二乘法 单点定位 精度估计 

分 类 号：P207.1[天文地球—测绘科学与技术]