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    • 7. 发明申请
    • DGNSS CORRECTION FOR POSITIONING
    • DGNSS定位校正
    • US20100149026A1
    • 2010-06-17
    • US12619153
    • 2009-11-16
    • Dominic Gerard FarmerIe-Hong LinRayman Wai Pon
    • Dominic Gerard FarmerIe-Hong LinRayman Wai Pon
    • G01S19/41
    • G01S19/05G01S19/25G01S19/27
    • Techniques for supporting positioning with differential corrections are described. In an aspect, differential correction for a satellite may include (i) a user differential range error (UDRE) indicating an uncertainty in a pseudo-range correction for the satellite, (ii) a UDRE growth rate, which may be a scaling factor for the UDRE, and (iii) a time of validity for UDRE growth rate, which may be a time unit used to apply the scaling factor. In one design, a terminal may send a request message to ask for differential correction information and may receive a response message. The terminal may obtain differential correction (e.g., a UDRE, a UDRE growth rate, and a time of validity for UDRE growth rate) for each of at least one satellite from the response message. The terminal may derive a location estimate for itself based on the differential correction for each satellite.
    • 描述用于支持差分校正定位的技术。 在一方面,卫星的差分校正可以包括(i)指示卫星的伪距校正中的不确定性的用户差分范围误差(UDRE),(ii)UDRE增长率,其可以是用于 UDRE,以及(iii)UDRE增长率的有效期,可能是用于应用比例因子的时间单位。 在一种设计中,终端可以发送请求消息来请求差分校正信息,并且可以接收响应消息。 终端可以从响应消息中获得至少一个卫星中的每一个的差分校正(例如,UDRE,UDRE增长率和UDRE增长率的有效时间)。 终端可以基于每个卫星的差分校正导出其自身的位置估计。
    • 9. 发明申请
    • QUASI-COLD START SATELLITE VEHICLE SEARCH METHOD AND SYSTEM
    • QUASI-COLD开始卫星车辆搜索方法和系统
    • US20120249369A1
    • 2012-10-04
    • US13244088
    • 2011-09-23
    • Rayman Wai Pon
    • Rayman Wai Pon
    • G01S19/28
    • G01S19/28G01S19/258
    • Methods, systems, computer readable media, and mobile devices for searching for global navigation satellite system (GNSS) signals include acquiring satellite position location signals from a first SV in the GNSS from an Earth location. From an SV position list a determination is made whether any SVs in the GNSS are not-in-view of the first SV. Satellite position location signals are searched from other SVs in the GNSS, except from any SVs that have been determined not-in-view of the first SV. According to one aspect, ellipsoidal, additional, and extrapolated elimination regions are created to expand the SVs that can be eliminated as being not-in-view.
    • 用于搜索全球导航卫星系统(GNSS)信号的方法,系统,计算机可读介质和移动装置包括从地球位置从GNSS中的第一SV获取卫星位置信号。 从SV位置列表确定GNSS中的任何SV是否不在第一SV中。 卫星位置信号从GNSS中的其他SV搜索,除了已经被确定为不是第一SV的视图之外。 根据一个方面,创建椭圆形,附加和外推消除区域以扩展可被消除的SV,因为它们不在视野中。