Method of near-field electromagnetic ranging and location
    1.
    发明授权
    Method of near-field electromagnetic ranging and location 有权
    近场电磁测距和定位方法

    公开(公告)号:US09285453B2

    公开(公告)日:2016-03-15

    申请号:US13692721

    申请日:2012-12-03

    摘要: A method of near-field electromagnetic ranging and location exploits the long-wavelength, near-field characteristics of low-frequency RF signals like those in the vicinity of the AM broadcast band. These signals are robust against scattering from small objects and only mildly perturbed by the urban landscape including building structures. They are thus amenable to an RF fingerprinting approach exploiting a coarse calibration to capture the behavior of the gradually varying signal characteristics. In embodiments, a method of near-field electromagnetic ranging and location may exploit transmit tags transmitting to an infrastructure of locator-receivers, or locator-receiver tags detecting signals from an infrastructure of fixed transmitter beacons. In still further embodiments, fixed transmitter beacons may be supplemented by uncooperative signals sources including signals-of-opportunity like AM broadcast band signals.

    摘要翻译: 近场电磁测距和定位的方法利用了像AM广播频带附近那样的低频RF信号的长波长,近场特性。 这些信号对于小物体的散射是强大的,并且仅由城市景观轻微扰乱,包括建筑结构。 因此,它们适用于利用粗略校准来捕获逐渐变化的信号特征的行为的RF指纹识别方法。 在实施例中,近场电磁测距和位置的方法可以利用发送到定位器 - 接收机的基础设施的发送标签,或者检测来自固定发射机信标的基础设施的信号的定位器 - 接收机标签。 在另外的实施例中,固定发射机信标可以由包括诸如AM广播频带信号之类的机会信号的不协调信号源来补充。

    Directive, electrically-small UWB antenna system and method
    2.
    发明申请
    Directive, electrically-small UWB antenna system and method 审中-公开
    指令,电小UWB天线系统和方法

    公开(公告)号:US20130027249A1

    公开(公告)日:2013-01-31

    申请号:US13436956

    申请日:2012-04-01

    IPC分类号: H01Q3/00

    CPC分类号: H01Q21/20 H01Q3/26

    摘要: A directive electrically small antenna (DESA) process and method employs multipole synthesis to implement directive electrically small multipole antennas with ultra-wideband (UWB) stable antenna patterns. Although lossy, embodiments have adequate efficiency to work as receive antennas in the high ambient noise environment of the HF band and below. Employing a process dubbed “antenna regeneration,” energy may be circulated within an antenna by means other than resonance. This enables multiple decade UWB response without the efficiency penalties inherent to traditional resistively-loaded antenna systems. Regenerative antennas can simultaneously achieve the performance of high Q resonant antennas and the bandwidth of resistively loaded antennas.

    摘要翻译: 指令电小天线(DESA)过程和方法采用多极合成来实现具有超宽带(UWB)稳定天线方向的指导性电小型多极天线。 虽然有损耗的实施例具有足够的效率作为HF频带及以下的高环境噪声环境中的接收天线工作。 使用称为天线再生的过程,能量可以通过除谐振之外的方式在天线内循环。 这样可以实现多重UWB响应,而无需传统电阻负载天线系统固有的效率损失。 再生天线可以同时实现高Q谐振天线的性能和电阻负载天线的带宽。

    Method and apparatus for determining location using signals-of-opportunity
    3.
    发明授权
    Method and apparatus for determining location using signals-of-opportunity 失效
    使用机会信号确定位置的方法和装置

    公开(公告)号:US08018383B1

    公开(公告)日:2011-09-13

    申请号:US12796643

    申请日:2010-06-08

    IPC分类号: G01S3/02

    CPC分类号: G01S5/0252 G01S5/0221

    摘要: A signal-of-opportunity location device (SOLD) that may be situated in a complex radio propagation environment with multiple RF signal obstructions receives RF signals from a distant transmitter. The RF signals from the distant transmitter interact with obstructions in the propagation environment local to the SOLD. The local obstructions perturb the RF signals causing the RF signals to exhibit near field behavior in the complex radio propagation environment. The SOLD receives the locally perturbed signals. The SOLD detects signal characteristics of RF signal components of the received signals and compares these signal characteristics with reference data in a reference data store to determine the current location of the SOLD.

    摘要翻译: 可能位于具有多个RF信号障碍物的复杂无线电传播环境中的机会信号定位设备(SOLD)从远程发射机接收RF信号。 来自遥远发射机的RF信号与SOLD的本地传播环境中的障碍物相互作用。 局部障碍扰乱了RF信号,导致RF信号在复杂无线电传播环境中表现出近场行为。 SOLD接收本地扰动的信号。 SOLD检测接收信号的RF信号分量的信号特性,并将这些信号特性与参考数据存储器中的参考数据进行比较,以确定SOLD的当前位置。

    System and method for near-field electromagnetic ranging
    4.
    发明授权
    System and method for near-field electromagnetic ranging 有权
    近场电磁测距系统及方法

    公开(公告)号:US06963301B2

    公开(公告)日:2005-11-08

    申请号:US10355612

    申请日:2003-01-31

    摘要: A system for measuring distance between a first locus and a second locus includes: (a) at least one beacon device; a respective beacon device of the at least one beacon device being situated at the first locus and transmitting a respective electromagnetic signal; and (b) at least one locator device; a respective locator device of the at least one locator device being situated at the second locus and receiving the respective electromagnetic signal. The respective locator device is situated at a distance from the respective beacon device within near-field range of the respective electromagnetic signal. The respective locator device distinguishes at least two characteristics of the respective electromagnetic signal. The respective locator device employs the at least two characteristics to effect the measuring.

    摘要翻译: 用于测量第一轨迹和第二轨迹之间的距离的系统包括:(a)至少一个信标装置; 所述至少一个信标设备的相应信标设备位于所述第一轨迹处并且发送相应的电磁信号; 和(b)至少一个定位装置; 所述至少一个定位装置的相应的定位装置位于所述第二轨迹并且接收相应的电磁信号。 相应的定位装置位于相应电信号的近场范围内距相应信标装置一定距离处。 相应的定位装置区分各个电磁信号的至少两个特性。 相应的定位装置采用至少两个特征来实现测量。

    Near field electromagnetic location system and method
    5.
    发明授权
    Near field electromagnetic location system and method 有权
    近场电磁定位系统及方法

    公开(公告)号:US08643538B2

    公开(公告)日:2014-02-04

    申请号:US12977067

    申请日:2010-12-23

    IPC分类号: G01S11/00 G01S13/84

    摘要: A system and method for determining a position of a locus comprising a locator device for disposition at the locus; the locator device configured for receiving an electromagnetic signal from a beacon device, the locator device receiving at a distance from the beacon device within near field range of the electromagnetic signal; the locator device configured for distinguishing at least two characteristics of the electromagnetic signal sensed at the locus; the system employing the at least two characteristics to effect the determining of the position of the locus.

    摘要翻译: 一种用于确定轨迹的位置的系统和方法,包括用于在所述场所处置的定位装置; 所述定位装置被配置用于从信标装置接收电磁信号,所述定位装置在所述电磁信号的近场范围内从所述信标装置接收一定距离; 所述定位装置被配置为区分在所述轨迹处感测的所述电磁信号的至少两个特性; 所述系统采用所述至少两个特征来实现所述轨迹位置的确定。

    Directive, electrically-small UWB antenna system and method
    6.
    发明授权
    Directive, electrically-small UWB antenna system and method 有权
    指令,电小UWB天线系统和方法

    公开(公告)号:US09209525B2

    公开(公告)日:2015-12-08

    申请号:US13436956

    申请日:2012-04-01

    IPC分类号: H01Q21/20 H01Q3/26

    CPC分类号: H01Q21/20 H01Q3/26

    摘要: A directive electrically small antenna (DESA) process and method employs multipole synthesis to implement directive electrically small multipole antennas with ultra-wideband (UWB) stable antenna patterns. Although lossy, embodiments have adequate efficiency to work as receive antennas in the high ambient noise environment of the HF band and below. Employing a process dubbed “antenna regeneration,” energy may be circulated within an antenna by means other than resonance. This enables multiple decade UWB response without the efficiency penalties inherent to traditional resistively-loaded antenna systems. Regenerative antennas can simultaneously achieve the performance of high Q resonant antennas and the bandwidth of resistively loaded antennas.

    摘要翻译: 指令电小天线(DESA)过程和方法采用多极合成来实现具有超宽带(UWB)稳定天线方向的指导性电小型多极天线。 虽然有损耗的实施例具有足够的效率作为HF频带及以下的高环境噪声环境中的接收天线工作。 使用被称为“天线再生”的过程,能量可以通过除谐振之外的方式在天线内循环。 这样可以实现多重UWB响应,而无需传统电阻负载天线系统固有的效率损失。 再生天线可以同时实现高Q谐振天线的性能和电阻负载天线的带宽。

    Near Field Electromagnetic Location System and Method
    7.
    发明申请
    Near Field Electromagnetic Location System and Method 有权
    近场电磁定位系统及方法

    公开(公告)号:US20110148714A1

    公开(公告)日:2011-06-23

    申请号:US12977067

    申请日:2010-12-23

    IPC分类号: G01S1/02

    摘要: A system and method for determining a position of a locus comprising a locator device for disposition at the locus; the locator device configured for receiving an electromagnetic signal from a beacon device, the locator device receiving at a distance from the beacon device within near field range of the electromagnetic signal; the locator device configured for distinguishing at least two characteristics of the electromagnetic signal sensed at the locus; the system employing the at least two characteristics to effect the determining of the position of the locus.

    摘要翻译: 一种用于确定轨迹的位置的系统和方法,包括用于在所述场所处置的定位装置; 所述定位装置被配置用于从信标装置接收电磁信号,所述定位装置在所述电磁信号的近场范围内从所述信标装置接收一定距离; 所述定位装置被配置为区分在所述轨迹处感测的所述电磁信号的至少两个特性; 所述系统采用所述至少两个特征来实现所述轨迹位置的确定。

    Space efficient magnetic antenna method
    8.
    发明授权
    Space efficient magnetic antenna method 有权
    空间有效的磁性天线方法

    公开(公告)号:US08922440B2

    公开(公告)日:2014-12-30

    申请号:US12834821

    申请日:2010-07-12

    摘要: A space efficient magnetic antenna is disclosed for use in tracking, positioning and other applications. In a preferred embodiment, a space efficient magnetic antenna system comprises a first magnetic antenna with a first null axis aligned within a predetermined plane and a second magnetic antenna having a second null axis aligned substantially orthogonal to a first null axis. A second magnetic antenna system lies in a minimal coupling orientation with respect to a first magnetic antenna system. Additionally, a first magnetic antenna may further comprise a plurality of interconnected magnetic antenna elements. A space efficient magnetic antenna system may include an RF module. In further embodiments, the antenna system may enclose a substantial majority of the device including the RF module; the RF module may be enclosed substantially or wholly within one or more antennas of the antenna system.

    摘要翻译: 公开了一种用于跟踪,定位和其他应用的空间高效磁性天线。 在优选实施例中,空间有效的磁性天线系统包括具有在预定平面内对准的第一空轴的第一磁性天线和具有与第一空轴基本正交的第二空轴的第二磁性天线。 第二磁性天线系统位于相对于第一磁性天线系统的最小耦合取向。 另外,第一磁性天线还可以包括多个互连的磁性天线元件。 空间高效的磁性天线系统可以包括RF模块。 在另外的实施例中,天线系统可以包括包括RF模块的设备的绝大多数; RF模块可以基本上或完全地封装在天线系统的一个或多个天线内。

    Space efficient magnetic antenna system
    9.
    发明授权
    Space efficient magnetic antenna system 有权
    空间高效磁力天线系统

    公开(公告)号:US07755552B2

    公开(公告)日:2010-07-13

    申请号:US11473595

    申请日:2006-06-23

    IPC分类号: H01Q1/12

    摘要: A space efficient magnetic antenna is disclosed for use in tracking, positioning and other applications. In a preferred embodiment, a space efficient magnetic antenna system comprises a first magnetic antenna with a first null axis aligned within a predetermined plane and a second magnetic antenna having a second null axis aligned substantially orthogonal to a first null axis. A second magnetic antenna system lies in a minimal coupling orientation with respect to a first magnetic antenna system. Additionally, a first magnetic antenna may further comprise a plurality of interconnected magnetic antenna elements. A space efficient magnetic antenna system may include an RF module. An RF module may alternately utilize a first magnetic antenna and a second magnetic antenna, or an RF module may drive a second magnetic antenna in phase quadrature with respect to a first magnetic antenna. In still further embodiments, a space efficient magnetic antenna system may further include a third mutually orthogonal magnetic antenna.

    摘要翻译: 公开了一种用于跟踪,定位和其他应用的空间高效磁性天线。 在优选实施例中,空间有效的磁性天线系统包括具有在预定平面内对准的第一空轴的第一磁性天线和具有与第一空轴基本正交的第二空轴的第二磁性天线。 第二磁性天线系统处于相对于第一磁性天线系统的最小耦合取向。 另外,第一磁性天线还可以包括多个互连的磁性天线元件。 空间高效的磁性天线系统可以包括RF模块。 RF模块可以交替地使用第一磁性天线和第二磁性天线,或者RF模块可以驱动相对于第一磁性天线的相位正交的第二磁性天线。 在另外的实施例中,空间有效的磁性天线系统还可以包括第三相互正交的磁性天线。

    Near field location system and method
    10.
    发明授权
    Near field location system and method 失效
    近场定位系统和方法

    公开(公告)号:US07307595B2

    公开(公告)日:2007-12-11

    申请号:US11272533

    申请日:2005-11-10

    IPC分类号: H01Q1/12

    摘要: Near field signal properties are used to determine a location by utilizing two magnetic antennas arranged so that the null axes are perpendicular and lie in a plane of interest, such as the horizontal plane. The two antennas may be used as transmitting antennas or receiving antennas. The antennas may be driven so as to produce an equivalent of an omnidirectional pattern in the plane of interest by driving the antennas in an orthogonal manner. The orthogonal drive may be time orthogonal or phase orthogonal. A location is determined based on near field response which may include propagation properties, which may include amplitude, phase, relative amplitude, or phase, or other properties. In one embodiment, multiple transmitters are utilized to determine the location of a single receiver. In another embodiment, multiple receivers are utilized to determine the location of a single transmitter. A space efficient magnetic antenna is disclosed.

    摘要翻译: 近场信号特性用于通过利用布置成使得零轴垂直并位于感兴趣平面(例如水平面)中的两个磁性天线来确定位置。 这两个天线可以用作发射天线或接收天线。 可以通过以正交方式驱动天线来驱动天线以产生感兴趣平面中的全向图案的等效物。 正交驱动可以是时间正交或相位正交。 基于近场响应来确定位置,其可以包括传播属性,其可以包括幅度,相位,相对幅度或相位或其他属性。 在一个实施例中,使用多个发射机来确定单个接收机的位置。 在另一个实施例中,多个接收机用于确定单个发射机的位置。 公开了一种空间高效的磁性天线。