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    • 9. 发明申请
    • MOBILE-UNIT POSITIONING DEVICE
    • 移动单元定位设备
    • US20100026566A1
    • 2010-02-04
    • US12444161
    • 2008-02-19
    • Akihiro UedaIwao MaedaKiyomi NagamiyaYasuhiro TajimaNaoto Hasegawa
    • Akihiro UedaIwao MaedaKiyomi NagamiyaYasuhiro TajimaNaoto Hasegawa
    • G01S5/14
    • G01S19/42G01S19/48G01S19/52
    • In a mobile-unit positioning device, phases of pseudo noise codes carried on satellite signals from satellites are observed at a mobile unit to measure a position of the mobile unit. A pseudo distance between one of the satellites and the mobile unit is measured for every satellite during a stop of the mobile unit using an observed value of the phase acquired during a stop of the mobile unit. An error index value indicating an error of the measured distance is computed based on the distances measured at points in time during a stop of the mobile unit. A weighting factor is determined based on the index value computed for every satellite. A weighted positioning computation using the determined weighting factor is performed to determine a position of the mobile unit during movement using an observed value of the phase acquired during movement.
    • 在移动单元定位设备中,在移动单元处观察到来自卫星的卫星信号携带的伪噪声码的相位,以测量移动单元的位置。 在移动单元的停止期间,使用在移动单元的停止期间获取的相位的观测值,测量卫星和移动单元之间的伪距离。 基于在移动单元停止期间的时间点测量的距离来计算指示测量距离的误差的误差指数值。 基于为每个卫星计算的指标值确定加权因子。 执行使用确定的加权因子的加权定位计算,以使用在运动期间获取的相位的观测值来确定移动单元在移动期间的位置。
    • 10. 发明申请
    • AZIMUTH DETECTING DEVICE AND AZIMUTH DETECTING METHOD
    • AZIMUTH检测装置和AZIMUTH检测方法
    • US20090088976A1
    • 2009-04-02
    • US12243178
    • 2008-10-01
    • Akihiro UEDAIwao MaedaKiyomi NagamiyaNaoto Shibata
    • Akihiro UEDAIwao MaedaKiyomi NagamiyaNaoto Shibata
    • G01C21/00
    • G01C17/00G01S19/45
    • An azimuth detecting device mounted in a mobile object and having: a geomagnetic sensor; GPS signal receiving means; and measuring means for measuring a position of the mobile object by using a GPS signal, the azimuth detecting device being characterized in calculating a gain correction amount by means of a method of least squares, using an output value of the geomagnetic sensor when a level of the GPS signal received by the GPS signal receiving means is lower than a predetermined level, and calculating a declination correction amount and/or an inclination correction amount on the basis of information obtained from the GPS signal and correcting the output value of the geomagnetic sensor, when the level of the GPS signal is at least the predetermined level.
    • 一种安装在移动物体中的方位检测装置,具有:地磁传感器; GPS信号接收装置; 以及用于通过使用GPS信号来测量移动体的位置的测量装置,所述方位检测装置的特征在于,利用地磁传感器的输出值,通过最小平方的方法来计算增益校正量, 由GPS信号接收装置接收的GPS信号低于预定水平,并且基于从GPS信号获得的信息和校正地磁传感器的输出值来计算偏角校正量和/或倾斜校正量, 当GPS信号的电平至少为预定电平时。