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41. 发明申请

US20110316740A1 Reacquiring Satellite Signals Quickly 有权
标题翻译：重新获取卫星信号
公开(公告)号：US20110316740A1
公开(公告)日：2011-12-29
申请号：US13227108
申请日：2011-09-07
申请人： Deric W. Waters , June Chul Roh , Sandeep Rao
发明人： Deric W. Waters , June Chul Roh , Sandeep Rao
IPC分类号： G01S19/24
CPC分类号： G01S19/26 , G01S19/05 , G01S19/235 , G01S19/246 , G01S19/254
摘要： Embodiments of the invention provide a method of reacquiring satellite signals quickly. A pseudorange of at least one satellite is estimated. A user's position is also estimated. Then a signal from at one or more satellites may be received. By detecting when the user is stationary, the Doppler frequency estimation can be corrected or the SNR can be boosted more both of which lead to improved performance. The embodiments allow a GNSS receiver to process signals in when the signal level would otherwise be too low—for example indoors. The embodiments can improve performance when one or more satellites are temporarily blocked but one or more satellites are still being tracked.
摘要翻译：本发明的实施例提供了一种快速重新获取卫星信号的方法。估计至少一颗卫星的伪距。也估计用户的位置。然后可以接收来自一个或多个卫星的信号。通过检测用户何时静止，可以校正多普勒频率估计或更多地提高SNR，这两者都可以提高性能。这些实施例允许GNSS接收机在信号电平否则将太低时处理信号，例如室内。当一个或多个卫星被暂时阻塞但仍在跟踪一个或多个卫星时，这些实施例可以提高性能。

42. 发明申请

US20110254729A1 CROSS COUPLED POSITIONING ENGINE (PE) ARCHITECTURE FOR SENSOR INTEGRATION IN GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) 有权
标题翻译：用于全球导航卫星系统（GNSS）传感器整合的交叉耦合定位发动机（PE）
公开(公告)号：US20110254729A1
公开(公告)日：2011-10-20
申请号：US13163199
申请日：2011-06-17
申请人： Goutam Dutta , Tarkesh Pande , Sandeep Rao , Deric W. Waters
发明人： Goutam Dutta , Tarkesh Pande , Sandeep Rao , Deric W. Waters
IPC分类号： G01S19/47
CPC分类号： G01S19/47 , G01C21/165 , G01S19/20 , G01S19/49 , G01S19/52
摘要： Embodiments of the disclosure provide a cross coupled position engine architecture for sensor integration in a Global Navigation Satellite System. In one embodiment, a data processing engine for processing inertial sensor data within a positioning system receiver is disclosed. The data processing engine includes a first input for receiving the sensor data, and a second input for receiving a positioning data. The data processing system also includes a memory and a processor. The processor of the data processing system is coupled to the memory and to the first and second input. The processor of the data processing system is configured to calculate a net acceleration profile data from the inertial sensor data and from the positioning data. The net acceleration profile data calculated by the processor of the data processing system is used for the Global Positioning System (GPS) receiver to subsequently calculate a position and a velocity data.
摘要翻译：本公开的实施例提供了用于全球导航卫星系统中的传感器集成的交叉耦合位置引擎结构。在一个实施例中，公开了一种用于在定位系统接收器内处理惯性传感器数据的数据处理引擎。数据处理引擎包括用于接收传感器数据的第一输入端和用于接收定位数据的第二输入端。数据处理系统还包括存储器和处理器。数据处理系统的处理器耦合到存储器和第一和第二输入端。数据处理系统的处理器被配置为从惯性传感器数据和定位数据计算净加速度曲线数据。由数据处理系统的处理器计算的净加速度曲线数据用于全球定位系统（GPS）接收机，以随后计算位置和速度数据。

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