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    • 2. 发明申请
    • PEDAL NAVIGATION USING LEO SIGNALS AND BODY-MOUNTED SENSORS
    • 使用LEO信号和身体安装传感器的PEDAL导航
    • WO2011120029A2
    • 2011-09-29
    • PCT/US2011/030110
    • 2011-03-26
    • MILLER, Isaac ThomasLEDVINA, Brent MichaelCOHEN, Clark E.
    • MILLER, Isaac ThomasLEDVINA, Brent MichaelCOHEN, Clark E.
    • G01S19/05
    • G01S19/42G01C21/28G01S19/215G01S19/31G01S19/45
    • A navigation system includes a navigation radio (10) and sensor (14) mountable to a pedal subject (11). The navigation radio processes RF signals to derive successive range observables for overhead assets such as low-earth orbit (LEO) satellites (12). The sensor is operable to generate output useful in computing successive positional dead reckoning (PDR) data under pedal motion. The radio includes navigation code operable to obtain a navigation solution including an absolute position solution and one or more of a velocity solution, time solution, and attitude solution based on the successive range observables, ephemerides for the corresponding LEO satellite, and the generated successive PDR data. A PDR component including pedal motion constraints is corrected by occasional LEO satellite ranging data to generate a highly-accurate pedal navigation solution in environments where GPS fails, such as in buildings, shopping malls, dense forests, deep open-pit mines, urban canyons, or in jammed signal environments.
    • 导航系统包括可安装到踏板主体(11)的导航无线电(10)和传感器(14)。 导航无线电处理RF信号以导出诸如低地球轨道(LEO)卫星(12)的开销资产的连续范围可观测量。 该传感器可操作以产生有用的计算踏板运动中连续的位置推算(PDR)数据的输出。 无线电装置包括导航码,其可操作以获得包括绝对位置解决方案和基于连续范围可观测量的速度解决方案,时间解决方案和姿态解决方案的导航解决方案,用于相应LEO卫星的星历,以及所生成的连续PDR 数据。 包括踏板运动约束的PDR组件通过偶尔的LEO卫星测距数据进行校正,以在GPS失效的环境中产生高精度的踏板导航解决方案,例如在建筑物,商场,密林,深露天矿,城市峡谷, 或在卡塞信号环境中。