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1. 发明授权

US06484098B1 GPS method and apparatus, navigation system, program storage device and computer data signal embodied in carrier wave 失效
标题翻译： GPS方法和装置，导航系统，程序存储装置和体现在载波中的计算机数据信号
公开(公告)号：US06484098B1
公开(公告)日：2002-11-19
申请号：US10138425
申请日：2002-05-06
申请人： Hajime Takemura
发明人： Hajime Takemura
IPC分类号： G01S562
CPC分类号： G01S19/42 , G01S19/22
摘要： A GPS apparatus measures each pseudo-range ri from respective one of received radio waves from n GPS satellites (200i) captured by a GPS receiver (18) and approximately calculates a clock error t and coordinates (x, y, z) of the GPS receiver as a solution of n simultaneous equations by performing a convergence calculation with respect to n functions having such variables as the clock error t and the coordinates (x, y, z) of the GPS receiver. If a generation of a multi-path is detected, it approximately calculates the clock error t and the coordinates as a solution of n+1 simultaneous equations by performing a convergence calculation with respect to total n+1 functions obtained by adding one &agr; fn+1 to the n functions, where &agr; fn+1 is obtained by applying a weighting &agr; to one function fn+1 having such variables as the clock error and the coordinates.
摘要翻译： GPS装置测量来自GPS接收机（18）捕获的n个GPS卫星（200i）的接收的无线电波中的每个伪距离ri，并且大致计算GPS的时钟误差t和坐标（x，y，z）通过对具有诸如GPS接收机的时钟误差t和坐标（x，y，z）的变量的n个函数执行收敛计算，接收机作为n个联立方程的解。如果检测到多路径的生成，则通过对通过将一个αfn + 1相加得到的总n + 1函数进行收敛计算，大致计算时钟误差t和坐标作为n + 1个联立方程的解， 1到n个函数，其中通过对具有诸如时钟误差和坐标的变量的一个函数fn + 1应用加权α来获得αfn + 1。

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