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    LOCATION DETECTION METHODS AND SYSTEMS
    12.
    发明申请
    LOCATION DETECTION METHODS AND SYSTEMS 审中-公开
    位置检测方法和系统

    公开(公告)号：US20110267222A1

    公开(公告)日：2011-11-03

    申请号：US13099287

    申请日：2011-05-02

    Applicant: Murray Craig

    Inventor： Murray Craig

    IPC: G01S13/90 ,  G01S13/04

    CPC classification number: G01S13/878 ,  G01S3/04 ,  G01S3/30

    Abstract: This document discusses, among other things, target, e.g., a vehicle, detection methods and systems that can identify, track, and positionally locate the vehicle using passive sensing of stray signals emitted by a target. The detector can be handheld, in an example, with computing devices, interchangeable antenna units, and a display. The antenna can offer desired gain at specific frequencies of interest. The computing devices can determine the location of the target, e.g., vehicle, aircraft, to within one degree of accuracy. The display can provide this data to a user. In an example, the detector can be a standalone device. In an example, the detector is part of a system that includes a server that can receive data from a plurality of detectors and transmit instructions to the detectors.

    Abstract translation: 本文件尤其讨论了目标，例如车辆，检测方法和系统，其可以使用被目标发射的杂散信号的被动感测来识别，跟踪和定位车辆。 在一个示例中，检测器可以是手持式的，具有计算设备，可互换的天线单元和显示器。 天线可以在感兴趣的特定频率处提供期望的增益。 计算设备可以在一个精度内确定目标，例如车辆，飞行器的位置。 显示器可以向用户提供该数据。 在一个示例中，检测器可以是独立设备。 在一个示例中，检测器是系统的一部分，其包括可以从多个检测器接收数据并向检测器发送指令的服务器。

    METHOD OF GENERATING REPEATED DATA PACKAGE TRANSMISSION
    13.
    发明申请
    METHOD OF GENERATING REPEATED DATA PACKAGE TRANSMISSION 有权
    生成重复数据包传输的方法

    公开(公告)号：US20110019599A1

    公开(公告)日：2011-01-27

    申请号：US12828332

    申请日：2010-07-01

    Applicant: Peter Wood ,  Steven Wenham

    Inventor： Peter Wood ,  Steven Wenham

    IPC: H04B7/00

    CPC classification number: H04L1/1858 ,  G01S3/04 ,  G01S3/14 ,  H04W64/006 ,  H04W76/10 ,  H04W84/18 ,  H04W92/18

    Abstract: Repeated data packets are generated from a first Bluetooth enabled device to a second Bluetooth enabled device to facilitate radio direction finding of the first device by the second device. A communication connection is established between the first and second devices in accordance with a Bluetooth protocol stack and in response to receiving at the second device a data packet transmitted by the first device the second device transmits an NACK data packet to the first device, whereby the first device is cause to retransmit said data packet, and causing the second device to process at least one of the transmitted data packet and the retransmitted data packet in accordance with a radio direction finding algorithm. The communication connection preferably comprises a remote name request.

    Abstract translation: 重复的数据分组从第一蓝牙设备生成到第二蓝牙设备，以促进第二设备对第一设备的无线电测向。 根据蓝牙协议栈在第一和第二设备之间建立通信连接，并且响应于在第二设备接收由第一设备发送的数据分组，第二设备向第一设备发送NACK数据分组，由此 第一设备是重传所述数据分组的原因，并且使得第二设备根据无线电测向算法来处理所发送的数据分组和重传的数据分组中的至少一个。 通信连接优选地包括远程名称请求。

    Methods and apparatus for determining a direction of arrival in a wireless communication system
    14.
    发明授权
    Methods and apparatus for determining a direction of arrival in a wireless communication system 失效
    用于确定到达无线通信系统的方向的方法和装置

    公开(公告)号：US06812889B2

    公开(公告)日：2004-11-02

    申请号：US10056434

    申请日：2002-01-24

    Applicant: William Francis Alexander, Jr.

    Inventor： William Francis Alexander, Jr.

    IPC: G01S504

    CPC classification number: G01S3/74 ,  G01S3/023 ,  G01S3/04 ,  G01S3/10 ,  G01S3/48 ,  H04B7/086

    Abstract: Methods and apparatus are provided for determining a Direction of Arrival (DOA) of a remote unit (22) in a communication system (20). The apparatus includes a first antenna (32) and a second antenna (36) configured to receive an RF signal (32) having a plurality of scattered rays produced by multi-path scattering. A ray selector (114) of the apparatus is configured to identify a first ray and second ray from the scattered plurality of rays received at the first antenna (32) and the second antenna (36). A difference calculator (116) is configured to determine an amplitude difference (120) and a phase difference (122) between the first ray and said second ray, and an angle estimator (118) is configured to calculate a plurality of DOA values (142) based upon the phase difference (122) and select one of the plurality of DOA values (142) utilizing the amplitude difference (120).

    Abstract translation: 提供了用于确定通信系统（20）中的远程单元（22）的到达方向（DOA）的方法和装置。 该装置包括第一天线（32）和第二天线（36），其被配置为接收具有由多径散射产生的多个散射光的RF信号（32）。 设备的射线选择器（114）被配置为从在第一天线（32）和第二天线（36）处接收的散射的多个光线识别第一射线和第二射线。 差分计算器（116）被配置为确定第一射线和所述第二射线之间的振幅差（120）和相位差（122），并且角度估计器（118）被配置为计算多个DOA值（142 ），并且利用幅度差（120）选择多个DOA值（142）中的一个。

    Method and apparatus for radio location
    16.
    发明授权
    Method and apparatus for radio location 失效
    无线电定位方法和装置

    公开(公告)号：US5084709A

    公开(公告)日：1992-01-28

    申请号：US524600

    申请日：1990-05-17

    Applicant: Elie J. Baghdady

    Inventor： Elie J. Baghdady

    IPC: G01S3/04 ,  G01S3/08 ,  H01Q21/20

    CPC classification number: G01S3/043 ,  G01S3/04 ,  G01S3/08 ,  H01Q21/20

    Abstract: This disclosure relates to multi-element antenna clusters or arrays for the reception and transmission of radio waves for direction-finding, navigation aid and emitter and/or receiver location purposes. In particular, it relates to arrangements of multiple antennas whereby the direction of propagation (arrival or departure) of a wavefront is determined from a combination of the amplitudes of phasor (or total individual antenna output) differences between pairs of antennas, said arrangements being along certain geometrical patterns, such as a circle, an ellipse, a polygon, an open straight line, etc., with at least one longest dimension measuring more than one wavelength of the incident or departing wave. Although described in terms of electromagnetic waves and hence antennas as receiving sensors or radiators, this invention is reality applies to any other form of propagating waveborne energy, such as acoustic, ultrasonic, seismic, etc.

    Abstract translation: 本公开涉及用于接收和传输无线电波以用于测向，导航辅助和发射器和/或接收器位置目的的多元件天线簇或阵列。 特别地，它涉及多个天线的布置，由此波前的传播方向（到达或离开）是根据天线对之间的相量幅度（或整个单独的天线输出）差的组合确定的，所述布置沿着 某些几何图案，例如圆形，椭圆形，多边形，开放直线等，具有至少一个测量入射或离开波长的波长的最长尺寸。 尽管以电磁波和因此天线作为接收传感器或散热器来描述，但是本发明实际上适用于诸如声学，超声波，地震等的任何其它形式的传播波能量。

    Steerable null antenna processor with gain control
    17.
    发明授权
    Steerable null antenna processor with gain control 失效
    具有增益控制的可导向无效天线处理器

    公开(公告)号：US4268829A

    公开(公告)日：1981-05-19

    申请号：US132940

    申请日：1980-03-24

    Applicant: Herbert F. Baurle ,  Raymond J. Masak

    Inventor： Herbert F. Baurle ,  Raymond J. Masak

    IPC: G01S3/04 ,  H01Q3/26 ,  G01S3/06

    CPC classification number: H01Q3/2635 ,  G01S3/04

    Abstract: An adaptive signal processing system for enhancing the signal-to-interfere characteristics on both receive and transmit, using an in-phase quadrature correlator to control phase and amplitude adjust circuits located in the antenna signal paths. To increase the dynamic range, automatic gain control circuits are included in the reference and feedback signal paths to the correlator.

    Abstract translation: 一种自适应信号处理系统，用于通过使用同相正交相关器来控制位于天线信号路径中的相位和幅度调整电路来增强接收和发射两者之间的信号与干扰特性。 为了增加动态范围，自动增益控制电路被包括在相关器的参考和反馈信号路径中。

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