Method for calibrating an AOA location system for all frequencies in a frequency hopping signal
    2.
    发明授权
    Method for calibrating an AOA location system for all frequencies in a frequency hopping signal 失效
    用于校准跳频信号中所有频率的AOA定位系统的方法

    公开(公告)号:US08125388B2

    公开(公告)日:2012-02-28

    申请号:US11972855

    申请日:2008-01-11

    IPC分类号: G01S7/40 G01S5/02

    摘要: A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in response to one or more calibration signals injected into the system at one or more of the frequencies in the hopping sequence and proximate in time to reception of the communication signal. The calibration coefficients are reflective of a frequency and time dependent parameter of a path between the antenna and wireless location sensor. The AOA is determined as a function of the calibration coefficient and the radio frequency energy of the received communication signal. Several embodiments of the method are illustrated.

    摘要翻译: 一种用于校准天线和信号处理系统的方法,所述天线和信号处理系统使能到达跳频信号的到达角(AOA)确定,其中校准系数是响应于以一个或多个频率注入到系统中的一个或多个校准信号而确定的 在跳频序列中并且在时间上接近通信信号。 校准系数反映了天线和无线位置传感器之间路径的频率和时间相关参数。 AOA被确定为接收到的通信信号的校准系数和射频能量的函数。 示出了该方法的几个实施例。

    System and method for enhancing the accuracy of a location estimate
    3.
    发明授权
    System and method for enhancing the accuracy of a location estimate 失效
    提高位置估算精度的系统和方法

    公开(公告)号:US07911384B2

    公开(公告)日:2011-03-22

    申请号:US12122942

    申请日:2008-05-19

    IPC分类号: G01S3/02

    摘要: A method for enabling a system to enhance the accuracy of a location estimate modifies weights in a weight matrix associated with receiver station measurements in parallel with successive refinements of the location estimate. In a typical location estimation scenario, several receiving stations simultaneously derive measurements of a signal from the emitter. Any one of these measurements is in general some function of the emitter location and the receiving station location. The aggregate of these measurements is often in excess of the minimum number of measurements required to provide an estimate of the emitter location. Where such an excess exists, the method proceeds by modifying the weights associated with the measurements in parallel with successive refinements of the location estimate. The method can be implemented over various cellular protocols with a consistent and significant enhancement in the accuracy of location estimates.

    摘要翻译: 一种使系统能够提高位置估计的准确性的方法是与位置估计的连续改进并行地修改与接收机站测量相关联的权重矩阵中的权重。 在典型的位置估计场景中,几个接收站同时导出来自发射器的信号的测量。 这些测量中的任何一个通常是发射器位置和接收站位置的一些功能。 这些测量的总和通常超过提供发射器位置的估计所需的最小测量数量。 在存在这种超量的情况下,该方法通过与位置估计的连续改进并行地修改与测量相关联的权重来进行。 该方法可以通过各种蜂窝协议实现,其中位置估计的准确性具有一致和显着的增强。

    Method for calibrating an AOA location system for all frequencies in a frequency hopping signal
    4.
    发明授权
    Method for calibrating an AOA location system for all frequencies in a frequency hopping signal 有权
    用于校准跳频信号中所有频率的AOA定位系统的方法

    公开(公告)号:US07358898B2

    公开(公告)日:2008-04-15

    申请号:US10768638

    申请日:2004-02-02

    IPC分类号: G01S7/40 G01S5/02

    摘要: A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in response to one or more calibration signals injected into the system at one or more of the frequencies in the hopping sequence and proximate in time to reception of the communication signal. The calibration coefficients are reflective of a frequency and time dependent parameter of a path between the antenna and wireless location sensor. The AOA is determined as a function of the calibration coefficient and the radio frequency energy of the received communication signal. Several embodiment of the method are illustrated.

    摘要翻译: 一种校准天线和信号处理系统的方法,所述天线和信号处理系统使得能够对跳频信号进行确定(AOA),所述跳频信号响应于在一个或多个频率处注入到系统中的一个或多个校准信号来确定校准系数 在跳频序列中并且在时间上接近通信信号。 校准系数反映了天线和无线位置传感器之间路径的频率和时间相关参数。 AOA被确定为接收到的通信信号的校准系数和射频能量的函数。 示出了该方法的几个实施例。

    Method for angle of arrival determination on frequency hopping air interfaces
    5.
    发明授权
    Method for angle of arrival determination on frequency hopping air interfaces 有权
    跳频空中接口的到达角确定方法

    公开(公告)号:US07804449B2

    公开(公告)日:2010-09-28

    申请号:US12111346

    申请日:2008-04-29

    IPC分类号: G01S7/40 G01S5/02

    CPC分类号: H04B1/713

    摘要: A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in response to one or more calibration signals injected into the system at one or more of the frequencies in the hopping sequence and proximate in time to reception of the communication signal. The calibration coefficients are reflective of a frequency and time dependent parameter of a path between the antenna and wireless location sensor. The AOA is determined as a function of the calibration coefficient and the radio frequency energy of the received communication signal. Several embodiment of the method are illustrated.

    摘要翻译: 一种用于校准天线和信号处理系统的方法,所述天线和信号处理系统使能到达跳频信号的到达角(AOA)确定,其中校准系数是响应于以一个或多个频率注入到系统中的一个或多个校准信号而确定的 在跳频序列中并且在时间上接近通信信号。 校准系数反映了天线和无线位置传感器之间路径的频率和时间相关参数。 AOA被确定为接收到的通信信号的校准系数和射频能量的函数。 示出了该方法的几个实施例。

    System and method for enhancing the accuracy of a location estimate
    6.
    发明授权
    System and method for enhancing the accuracy of a location estimate 有权
    提高位置估算精度的系统和方法

    公开(公告)号:US07429951B2

    公开(公告)日:2008-09-30

    申请号:US10531044

    申请日:2003-10-16

    IPC分类号: G01S3/02

    摘要: A method for enabling a system to enhance the accuracy of a location estimate modifies weights in a weight matrix associated with receiver station measurements in parallel with successive refinements of the location estimate. In a typical location estimation scenario, several receiving stations simultaneously derive measurements of a signal from the emitter. Any one of these measurements is in general some function of the emitter location and the receiving station location. The aggregate of these measurements is often in excess of the minimum number of measurements required to provide an estimate of the emitter location. Where such an excess exists, the method proceeds by modifying the weights associated with the measurements in parallel with successive refinements of the location estimate. The method can be implemented over various cellular protocols with a consistent and significant enhancement in the accuracy of location estimates.

    摘要翻译: 一种使系统能够提高位置估计的准确性的方法是与位置估计的连续改进并行地修改与接收机站测量相关联的权重矩阵中的权重。 在典型的位置估计场景中,几个接收站同时导出来自发射器的信号的测量。 这些测量中的任何一个通常是发射器位置和接收站位置的一些功能。 这些测量的总和通常超过提供发射器位置的估计所需的最小测量数量。 在存在这种超量的情况下,该方法通过与位置估计的连续改进并行地修改与测量相关联的权重来进行。 该方法可以通过各种蜂窝协议实现,其中位置估计的准确性具有一致和显着的增强。

    Method for angle of arrival determination on frequency hopping air interfaces
    7.
    发明授权
    Method for angle of arrival determination on frequency hopping air interfaces 有权
    跳频空中接口的到达角确定方法

    公开(公告)号:US07379019B2

    公开(公告)日:2008-05-27

    申请号:US10768687

    申请日:2004-02-02

    IPC分类号: G01S7/40 G01S5/02

    CPC分类号: H04B1/713

    摘要: A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in response to one or more calibration signals injected into the system at one or more of the frequencies in the hopping sequence and proximate in time to reception of the communication signal. The calibration coefficients are reflective of a frequency and time dependent parameter of a path between the antenna and wireless location sensor. The AOA is determined as a function of the calibration coefficient and the radio frequency energy of the received communication signal. Several embodiment of the method are illustrated.

    摘要翻译: 一种用于校准天线和信号处理系统的方法,所述天线和信号处理系统使能到达跳频信号的到达角(AOA)确定,其中校准系数是响应于以一个或多个频率注入到系统中的一个或多个校准信号而确定的 在跳频序列中并且在时间上接近通信信号。 校准系数反映了天线和无线位置传感器之间路径的频率和时间相关参数。 AOA被确定为接收到的通信信号的校准系数和射频能量的函数。 示出了该方法的几个实施例。

    System and Method for Identifying the Path or Devices on the Path of a Communication Signal
    8.
    发明申请
    System and Method for Identifying the Path or Devices on the Path of a Communication Signal 有权
    用于识别通信信号路径上的路径或设备的系统和方法

    公开(公告)号:US20120064822A1

    公开(公告)日:2012-03-15

    申请号:US13302765

    申请日:2011-11-22

    IPC分类号: H04B17/02

    CPC分类号: H04B7/155

    摘要: A system and method of applying a known modification in the form of a distortion to a signal to enable a determination if a signal received by a first node is received directly from a second node or indirectly through a repeater. The repeater receives a primary signal and creates a secondary signal as a function of the primary signal and a known distortion, wherein the known distortion identifies the repeater. The primary signal is transmitted and injected with the secondary signal as the first signal to the primary receiver.

    摘要翻译: 将以失真形式的已知修改应用于信号以使得能够确定由第一节点接收到的信号是否直接从第二节点或通过中继器间接接收的系统和方法。 中继器接收主信号并产生作为主信号和已知失真的函数的次信号,其中已知失真识别中继器。 主信号以辅助信号作为第一信号被发送和注入到主接收机。

    System and method for estimating the multi-path delays in a signal using a spatially blind antenna array
    9.
    发明授权
    System and method for estimating the multi-path delays in a signal using a spatially blind antenna array 有权
    用于使用空间盲天线阵列估计信号中的多径延迟的系统和方法

    公开(公告)号:US07778608B2

    公开(公告)日:2010-08-17

    申请号:US12078471

    申请日:2008-03-31

    IPC分类号: H04B17/00

    摘要: A method is described that enables a system to estimate the individual times of arrival of multi-path signals components in a received signal while blind to the particular angular response characteristics of an antenna array. Additionally, a system is described that estimates the impulse response of the modulation channel. The impulse response is used to generate impulse response estimates for all multi-path signal components without reference to the actual angle of arrival of the signal. The impulse responses for the multi-path constituents are directly associated with the time delays on each path, providing delay estimates for each path.

    摘要翻译: 描述了一种使得系统能够在对天线阵列的特定角度响应特性无效的情况下估计接收信号中的多路径信号分量的各个到达时间的方法。 另外,描述了估计调制信道的脉冲响应的系统。 脉冲响应用于产生所有多径信号分量的脉冲响应估计,而不参考信号的实际到达角。 多路径成分的脉冲响应与每个路径上的时间延迟直接相关,为每个路径提供延迟估计。