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公开(公告)号：US20050200525A1
公开(公告)日：2005-09-15
申请号：US10518073
申请日：2003-05-13
CPC分类号： H04B1/71072 , G01S5/02 , G01S5/0215
摘要： The present invention sets out to overcome the hearability problem in CDMA communications networks in which positioning services are provided, by using a separate sampling device (204, 205, 206) for each transmitter (201, 202, 203), which sends to the computing device (208) a representation of the signals transmitted only by that transmitter. A cross-correlation of the representation sent back by the mobile terminal (207) with the representation sent back by the sampling device in the brightest transmitter is performed in the computing device (208), and a blurred estimate of that brightest signal is subtracted from a blurred version of the representation sent back by the mobile terminal (207) in order to reduce its effect on the remaining signals as far as possible. The cross-correlation and subtraction steps are iterated until no useful signals remain to be extracted.
摘要翻译： 本发明旨在通过为每个发射机（201,202,203）使用单独的采样设备（204,205,206）来克服在其中提供定位服务的CDMA通信网络中的可听性问题，其发送到计算 设备（208）仅由该发射机传输的信号的表示。 在计算设备（208）中执行由移动终端（207）发回的表示与采样设备在最亮发射机中发回的表示的互相关，并且从最小信号中减去最亮信号的模糊估计 由移动终端（207）发回的表示的模糊版本，以便尽可能地减少对剩余信号的影响。 迭代相关和减法步骤，直到没有有用的信号保持提取。
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公开(公告)号：US20060217127A1
公开(公告)日：2006-09-28
申请号：US10565440
申请日：2004-07-22
IPC分类号： H04Q7/20
CPC分类号： G01C21/362 , G01S5/0045 , G01S5/02 , G01S5/0221 , H04W64/00
摘要： A method and apparatus for finding a radio terminal (10) in a radio communications network. The method includes making observations of attributes of radio signals associated with the radio terminal (10) and generating a route for a seeker (20) to find the radio terminal (10), based on the observations and estimated error distributions of those observations. The route may be displayed over a topographical map to guide the seeker to the target.
摘要翻译： 一种用于在无线电通信网络中找到无线电终端（10）的方法和装置。 该方法包括基于观测值和这些观察值的估计误差分布，对与无线电终端（10）相关联的无线电信号的属性进行观察，并产生寻找者（20）寻找无线终端（10）的路由。 该路线可以显示在地形图上，以引导寻求者到达目标。
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