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1. 发明申请

WO2011159384A3 VEHICLE NAVIGATION USING NON-GPS LEO SIGNALS AND ON-BOARD SENSORS 审中-公开
公开(公告)号：WO2011159384A3
公开(公告)日：2011-12-22
申请号：PCT/US2011/030109
申请日：2011-03-26
申请人： PSIAKI, Mark Lockwood , MILLER, Isaac Thomas , LEDVINA, Brent Michael
发明人： PSIAKI, Mark Lockwood , MILLER, Isaac Thomas , LEDVINA, Brent Michael
IPC分类号： G01C21/28 , G01C21/10 , G01C21/26 , G01S19/03 , G01S5/02
摘要： A navigation system includes a navigation radio (10) and a sensor (14) onboard a vehicle (11). The navigation radio receives and processes low earth orbit RF signals to derive range observables for a corresponding LEO satellite (12). A sensor is operable to generate at least one of vehicle speed data, acceleration data, angular rate data and rotational angle data under high vehicle dynamics. The navigation radio includes a navigation code operable to obtain a position, velocity and time solution (a "navigation solution") based on the one or more range observables, ephemerides for the corresponding LEO satellite, a heading pseudomeasurement, a navigation radio altitude pseudomeasurement; one or more vehicle velocity pseudomeasurements orthogonal to the altitude pseudomeasurements; and the generated at least one of vehicle speed data, acceleration data, angular rate data and rotational angle data. The navigation radio uses the navigation solution to acquire a GPS signal during interference with a coarse acquisition GPS signal.

2. 发明申请

WO2011120029A2 PEDAL NAVIGATION USING LEO SIGNALS AND BODY-MOUNTED SENSORS 审中-公开
标题翻译：使用LEO信号和身体安装传感器的PEDAL导航
公开(公告)号：WO2011120029A2
公开(公告)日：2011-09-29
申请号：PCT/US2011/030110
申请日：2011-03-26
申请人： MILLER, Isaac Thomas , LEDVINA, Brent Michael , COHEN, Clark E.
发明人： MILLER, Isaac Thomas , LEDVINA, Brent Michael , COHEN, Clark E.
IPC分类号： G01S19/05
CPC分类号： G01S19/42 , G01C21/28 , G01S19/215 , G01S19/31 , G01S19/45
摘要： 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.
摘要翻译：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。

3. 发明申请

WO2015179704A2 POSITIONING USING NON-LINE-OF-SIGHT SIGNALS 审中-公开
标题翻译：使用非线性信号的定位
公开(公告)号：WO2015179704A2
公开(公告)日：2015-11-26
申请号：PCT/US2015/032064
申请日：2015-05-21
申请人： MILLER, Isaac Thomas , SCHOENBERG, Jonathan
发明人： MILLER, Isaac Thomas , SCHOENBERG, Jonathan
IPC分类号： G01S19/42
CPC分类号： H04W56/0095 , G01S5/0273 , G01S19/06 , G01S19/428 , H04B7/18513 , H04W4/025 , H04W56/003
摘要： Systems, methods, and computer program products for determining a location from non-line-of-sight (NLOS) signals are described. An RF receiver can receive signals of an RF transmitter (e.g., a GNSS satellite) reflected by one or more building surfaces. A processor embedded in or coupled to the RF receiver can reduce the effects of multipath interference caused by the reflections using data on reflective characteristics of buildings located close to the RF receiver. The data can include information on which surfaces of the buildings are visible to the RF receiver. The processor can then estimate, from the visible surfaces and known satellite locations, feasible signal paths for a signal from a satellite to the RF receiver. The processor can then correct a location estimation by taking into account the multipath effects of the signal traveling along the feasible signal paths.
摘要翻译：描述了用于从非视距（NLOS）信号确定位置的系统，方法和计算机程序产品。 RF接收机可以接收由一个或多个建筑物表面反射的RF发射器（例如，GNSS卫星）的信号。嵌入或耦合到RF接收机的处理器可以减少使用数据对靠近RF接收机的建筑物的反射特性的反射引起的多径干扰的影响。数据可以包括关于RF接收器对建筑物的哪个表面可见的信息。然后，处理器可以从可见表面和已知的卫星位置估计用于从卫星到RF接收机的信号的可行信号路径。然后，处理器可以通过考虑沿着可行信号路径行进的信号的多路径效应来校正位置估计。

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