Passive GSM-based self-locating device
    1.
    发明授权
    Passive GSM-based self-locating device 有权
    被动基于GSM的自定位设备

    公开(公告)号:US07363043B2

    公开(公告)日:2008-04-22

    申请号:US10147410

    申请日:2002-05-16

    IPC分类号: H04Q7/20

    CPC分类号: H04W64/00 G01S5/10

    摘要: A self locating device that uses GSM signals associated with GSM digital telephone base stations to determine its current location. The device uses GSM common channel signals to determine observed time differences between a local base station and at least two additional base stations. It also uses the common channel signals to identify these base stations and to match the identifications to geographical locations. It further uses a geolocation algorithm to determine the location of the device relative to the base stations, and uses the geographic location data to determine the current geographic location of the device.

    摘要翻译: 自定位装置,其使用与GSM数字电话基站相关联的GSM信号来确定其当前位置。 该设备使用GSM公共信道信号来确定本地基站与至少两个附加基站之间的观察时间差。 它还使用公共信道信号来识别这些基站,并将标识与地理位置相匹配。 它还使用地理位置算法来确定设备相对于基站的位置,并且使用地理位置数据来确定设备的当前地理位置。

    Detection of Deceptive Navigation Signal
    2.
    发明申请
    Detection of Deceptive Navigation Signal 有权
    欺骗性导航信号的检测

    公开(公告)号:US20150070212A1

    公开(公告)日:2015-03-12

    申请号:US13283431

    申请日:2011-10-27

    IPC分类号: G01S19/21

    CPC分类号: G01S19/215 G01S19/21

    摘要: A method and device for detecting the presence of a deception scheme intended to thwart a satellite navigation system (SNS). A detector receives “receiver measurements” of various types from the SNS receiver. It conditions these values, so that they may be readily used by a process that determines whether the receiver is operating in a statistically normal state.

    摘要翻译: 一种用于检测旨在阻止卫星导航系统(SNS)的欺骗方案的存在的方法和装置。 检测器从SNS接收器接收各种类型的“接收机测量”。 它规定这些值,以便它们可以被确定接收器是否在统计学正常状态下操作的过程容易地使用。

    Detection of deceptive navigation signal
    3.
    发明授权
    Detection of deceptive navigation signal 有权
    检测欺骗性导航信号

    公开(公告)号:US09366762B2

    公开(公告)日:2016-06-14

    申请号:US13283431

    申请日:2011-10-27

    IPC分类号: G01S19/21

    CPC分类号: G01S19/215 G01S19/21

    摘要: A method and device for detecting the presence of a deception scheme intended to thwart a satellite navigation system (SNS). A detector receives “receiver measurements” of various types from the SNS receiver. It conditions these values, so that they may be readily used by a process that determines whether the receiver is operating in a statistically normal state.

    摘要翻译: 一种用于检测旨在阻止卫星导航系统(SNS)的欺骗方案的存在的方法和装置。 检测器从SNS接收器接收各种类型的“接收机测量”。 它规定这些值,以便它们可以被确定接收器是否在统计学正常状态下操作的过程容易地使用。

    Location finding system, using reflected radio frequency or acoustic signals in a crowded reflector environment
    4.
    发明授权
    Location finding system, using reflected radio frequency or acoustic signals in a crowded reflector environment 有权
    定位系统,在拥挤的反射环境中使用反射射频或声信号

    公开(公告)号:US07130243B2

    公开(公告)日:2006-10-31

    申请号:US11331711

    申请日:2006-01-13

    申请人: Michael A. Koets

    发明人: Michael A. Koets

    IPC分类号: G01S5/04

    CPC分类号: G01V1/001

    摘要: A method of locating one or more reflectors in an environment crowded with reflectors. A transmitter and multiple receivers are used to obtain reflected signals. Each path of a reflected signal is defined by an ellipse having the transmitter at one focus and a receiver at the other. A reflector is assumed to lie on the ellipse, and an intersection of ellipses is assumed to be a reflector location. The region is iteratively divided into smaller and smaller cells, and a search algorithm is performed to determine whether a given point in each cell lies on an ellipse. A “solution” is a point that lies on the same number of ellipses as the number of receivers.

    摘要翻译: 在一个拥有反射器的环境中定位一个或多个反射器的方法。 使用发射机和多个接收机来获得反射信号。 反射信号的每个路径由在一个焦点处具有发射器的椭圆和另一个处的接收器限定。 假设反射器位于椭圆上,椭圆的交点被假设为反射器位置。 该区域被迭代地分成更小和更小的单元,并且执行搜索算法以确定每个单元格中的给定点是否位于椭圆上。 “解决方案”是与接收器数量相同数量的椭圆的点。