SYSTEM AND METHOD FOR INDOOR LOCATION TRACKING USING PSEUDO GPS SIGNAL TRANMSITTER
    1.
    发明申请
    SYSTEM AND METHOD FOR INDOOR LOCATION TRACKING USING PSEUDO GPS SIGNAL TRANMSITTER 有权
    使用PSEUDO GPS信号传输器进行室内位置跟踪的系统和方法

    公开(公告)号:US20120086599A1

    公开(公告)日:2012-04-12

    申请号:US13253580

    申请日:2011-10-05

    IPC分类号: G01S19/48

    CPC分类号: G01S19/11

    摘要: To track the location of a terminal in an indoor space by using a pseudo GPS signal transmitter, a GPS signal sent from an artificial satellite is received, and a clock signal of the artificial satellite is extracted from the received GPS signal to perform synchronization with the artificial satellite. Once synchronization with the artificial satellite is performed, a pseudo GPS signal is generated, and the transmission time of the pseudo GPS signal is controlled. The GPS signal is sent to the terminal located in the indoor space by a plurality of transmitting antennas based on the controlled transmission time, thereby enabling the terminal located in the indoor space to track its location.

    摘要翻译: 为了通过使用伪GPS信号发送器在室内追踪终端的位置,接收从人造卫星发送的GPS信号,并从接收到的GPS信号中提取人造卫星的时钟信号,以与 卫星。 一旦执行与人造卫星的同步,就产生伪GPS信号,并且控制伪GPS信号的发送时间。 基于受控的发送时间,通过多个发送天线将GPS信号发送到位于室内空间的终端,由此能够使位于室内空间的终端跟踪其位置。

    RECEIVER FOR REAL TIME LOCATING SYSTEM AND METHOD OF RECEIVING SIGNAL IN REAL TIME LOCATING SYSTEM
    3.
    发明申请
    RECEIVER FOR REAL TIME LOCATING SYSTEM AND METHOD OF RECEIVING SIGNAL IN REAL TIME LOCATING SYSTEM 有权
    实时定位系统的接收器和实时定位系统中接收信号的方法

    公开(公告)号:US20110150046A1

    公开(公告)日:2011-06-23

    申请号:US12886698

    申请日:2010-09-21

    申请人: Sang Hyun MO

    发明人: Sang Hyun MO

    IPC分类号: H04B1/707

    摘要: Provided are a receiver for a real time locating system (RTLS) and a method of receiving a signal in the RTLS. The receiver includes a down converter converting a radio frequency (RF) signal into a base band signal, a matched filter filtering the converted signal using an optimal receiving filter in view of a signal-to-noise ratio (SNR) such as a shaping filter used for a transmitter, an adaptive transversal filter (ATF) estimating an interference signal with an output of the matched filter, and filtering the output to remove interference of a heterogeneous signal of the same frequency band, a de-spreader multiplying an output of the matched filter and a code according to DSSS modulation used for spreading when a tag signal is modulated, and performing chip-matched filtering to obtain a value of correlation energy, and a detector detecting original transmission data using the correlation energy value.

    摘要翻译: 提供了用于实时定位系统(RTLS)的接收机以及在RTLS中接收信号的方法。 接收机包括将射频(RF)信号转换为基带信号的下变频转换器,考虑到诸如成形滤波器的信噪比(SNR),使用最佳接收滤波器对转换的信号进行滤波的匹配滤波器 用于发射机,自适应横向滤波器(ATF),用匹配滤波器的输出估计干扰信号,并对输出进行滤波以消除相同频带的异构信号的干扰;解扩器将 匹配滤波器和根据用于在标签信号被调制时进行扩频的DSSS调制的码,并且执行码片匹配滤波以获得相关能量的值;以及检测器,使用相关能量值检测原始发送数据。