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公开(公告)号：US08339310B2
公开(公告)日：2012-12-25
申请号：US12832654
申请日：2010-07-08
CPC分类号： G01S19/48
摘要： A positioning method includes: executing a first positioning mode or a second positioning mode, a first positioning process that is performed using a least-square method based on a positioning signal and a second positioning process that is performed using a Kalman filter based on the positioning signal utilizing a positioning result obtained by the first positioning process as a base value being performed in the first positioning mode, and the second positioning process being further performed in the second positioning mode utilizing a positioning result obtained by the second positioning process as a base value; determining accuracy of a positioning result obtained by the second positioning process performed in the executed positioning mode; and changing the positioning mode to be executed to the first positioning mode or the second positioning mode corresponding to the accuracy.
摘要翻译： 一种定位方法包括：执行第一定位模式或第二定位模式，使用基于定位信号的最小二乘法执行的第一定位处理和使用基于定位的卡尔曼滤波器执行的第二定位处理 信号利用通过第一定位处理获得的定位结果作为在第一定位模式中执行的基值，并且利用通过第二定位处理获得的定位结果作为基值在第二定位模式中进一步执行第二定位处理 ; 确定通过在执行的定位模式中执行的第二定位处理获得的定位结果的精度; 以及将要执行的定位模式改变为与精度相对应的第一定位模式或第二定位模式。
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公开(公告)号：US07777673B2
公开(公告)日：2010-08-17
申请号：US12324493
申请日：2008-11-26
IPC分类号： G01S1/02
CPC分类号： G01S19/48
摘要： A positioning method includes: executing a first positioning mode or a second positioning mode, a first positioning process that is performed using a least-square method based on a positioning signal and a second positioning process that is performed using a Kalman filter based on the positioning signal utilizing a positioning result obtained by the first positioning process as a base value being performed in the first positioning mode, and the second positioning process being further performed in the second positioning mode utilizing a positioning result obtained by the second positioning process as a base value; determining accuracy of a positioning result obtained by the second positioning process performed in the executed positioning mode; and changing the positioning mode to be executed to the first positioning mode or the second positioning mode corresponding to the accuracy.
摘要翻译： 一种定位方法包括：执行第一定位模式或第二定位模式，使用基于定位信号的最小二乘法执行的第一定位处理和使用基于定位的卡尔曼滤波器执行的第二定位处理 信号利用通过第一定位处理获得的定位结果作为在第一定位模式中执行的基值，并且利用通过第二定位处理获得的定位结果作为基值在第二定位模式中进一步执行第二定位处理 ; 确定通过在执行的定位模式中执行的第二定位处理获得的定位结果的精度; 以及将要执行的定位模式改变为与精度相对应的第一定位模式或第二定位模式。
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3.发明授权公开(公告)号：US07965229B2
公开(公告)日：2011-06-21
申请号：US12246792
申请日：2008-10-07
申请人： Shunichi Mizuochi , Koichiro Yano
发明人： Shunichi Mizuochi , Koichiro Yano
CPC分类号： G01S19/40
摘要： A positioning method includes: capturing a satellite signal from a positioning satellite; predicting a state vector including a position of a positioning device and a velocity of the positioning device based on the satellite signal; predicting a first distance-equivalent value indicating a distance between the positioning satellite and the positioning device; measuring a second distance-equivalent value indicating a distance between the positioning satellite and the positioning device; calculating an observed value indicating a difference between the first distance-equivalent value and the second distance-equivalent value; setting a measurement error for the positioning satellite based on a signal strength of the satellite signal; changing the measurement error based on a capture data indicating a data of capturing of the satellite signal; and correcting the state vector using the observed value, and the changed measurement error.
摘要翻译： 定位方法包括：从定位卫星捕获卫星信号; 基于卫星信号预测包括定位装置的位置和定位装置的速度的状态矢量; 预测表示所述定位卫星与所述定位装置之间的距离的第一距离当量值; 测量表示所述定位卫星与所述定位装置之间的距离的第二距离当量值; 计算表示第一距离当量值和第二距离当量值之间的差的观测值; 基于卫星信号的信号强度设置定位卫星的测量误差; 基于指示卫星信号的捕获数据的捕获数据来改变测量误差; 并使用观测值校正状态向量，并且改变测量误差。
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4.发明申请Positioning device, method of controlling positioning device, program for controlling positioning device, and computer-readable recording medium having program for controlling positioning device recorded thereon 审中-公开定位装置，控制定位装置的方法，用于控制定位装置的程序和具有用于控制记录在其上的定位装置的程序的计算机可读记录介质公开(公告)号：US20070203647A1
公开(公告)日：2007-08-30
申请号：US11710977
申请日：2007-02-27
IPC分类号： G01C21/00
摘要： A positioning device includes a position calculation section which calculates a determined position of the positioning device based on a satellite signal S1 and the like, a velocity calculation section which calculates moving velocity of the positioning device, a stationary state determination section which determines whether or not a stationary state condition beta is satisfied in which a time elapsed from the last positioning is within an allowable time range specified in advance, moving velocity v0 during the last positioning is within a first velocity allowable range specified in advance, and current moving velocity v1 is within a second velocity allowable range specified in advance, an average position calculation section which calculates an average position Q1 by averaging a determined position P0 during the last positioning and a current determined position P1, and the like.
摘要翻译： 定位装置包括：位置计算部，其基于卫星信号S 1等计算定位装置的确定位置;速度计算部，计算定位装置的移动速度;静止状态判定部，其判断是否 满足从最后定位经过的时间在预先规定的允许时间范围内的静止状态条件β，在最后定位期间的移动速度v 0在预先规定的第一速度容许范围内，当前移动速度 v 1在预先规定的第二速度容许范围内，平均位置计算部，其通过对上次定位期间的确定位置P 0和当前确定位置P 1求平均来计算平均位置Q 1等。
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5.发明授权Method of acquiring error correction value of reference frequency, terminal device, and recording medium 有权获取参考频率误差校正值，终端设备和记录介质的方法公开(公告)号：US07741995B2
公开(公告)日：2010-06-22
申请号：US11847087
申请日：2007-08-29
申请人： Hidekazu Maezawa , Koichiro Yano
发明人： Hidekazu Maezawa , Koichiro Yano
IPC分类号： G01S1/00
CPC分类号： G01S19/30 , G01S19/235
摘要： A terminal device receives satellite signals from a plurality of satellite positioning system (SPS) satellites and locates a position. The terminal device periodically calculates a first drift df1 of a local oscillator using a reference frequency Hr, calculates a search range of the satellite signal using the first drift df1, calculates a second drift df2 of the local oscillator using a reception frequency of the satellite signal, calculates a reference frequency error β which is an error of the reference frequency by calculating a difference between the first drift df1 and the second drift df2, and calculates an error correction value βav of the reference frequency by subjecting a plurality of the reference frequency errors β to a statistical process.
摘要翻译： 终端设备从多个卫星定位系统（SPS）卫星接收卫星信号并且定位一个位置。 终端设备使用参考频率Hr周期性地计算本地振荡器的第一漂移df1，使用第一漂移df1计算卫星信号的搜索范围，使用卫星信号的接收频率计算本地振荡器的第二漂移df2 ，计算参考频率误差＆bgr; 通过计算第一漂移df1和第二漂移df2之间的差，作为参考频率的误差，并且通过使多个参考频率误差＆amp; bgr来计算参考频率的误差校正值＆bgr; av; 统计过程。
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