Millimeter wave surface imaging radar system
    1.
    发明申请
    Millimeter wave surface imaging radar system 失效
    毫米波表面成像雷达系统

    公开(公告)号:US20110199254A1

    公开(公告)日:2011-08-18

    申请号:US12806488

    申请日:2010-08-13

    IPC分类号: G01S13/06

    摘要: A short range millimeter wave surface imaging radar system. The system includes electronics adapted to produce millimeter wave radiation scanned over a frequency range of a few gigahertz. The scanned millimeter wave radiation is broadcast through a frequency scanned transmit antenna to produce a narrow transmit beam in a first scanned direction (such as the vertical direction) corresponding to the scanned millimeter wave frequencies. The transmit antenna is scanned to transmit beam in a second direction perpendicular to the first scanned direction (such as the horizontal or the azimuthal direction) so as to define a two-dimensional field of view. Reflected millimeter wave radiation is collected in a receive frequency scanned antenna co-located (or approximately co-located) with the transmit antenna and adapted to produce a narrow receive beam approximately co-directed in the same directions as the transmitted beam in approximately the same field of view. Computer processor equipment compares the intensity of the receive millimeter radar signals for a pre-determined set of ranges and known directions of the transmit and receive beams as a function of time to produce a radar image of at least a desired portion of the field of view. In preferred embodiment the invention is mounted on a truck and adapted as a FOD finder system to detect and locate FOD on airport surfaces.

    摘要翻译: 一种短距离毫米波表面成像雷达系统。 该系统包括适于产生在几千兆赫的频率范围上扫描的毫米波辐射的电子装置。 扫描的毫米波辐射通过频率扫描的发射天线广播,以在对应于扫描的毫米波频率的第一扫描方向(例如垂直方向)上产生窄的发射波束。 扫描发射天线以垂直于第一扫描方向的第二方向(例如水平或方位方向)发射波束,以便限定二维视场。 反射的毫米波辐射被收集在与发射天线共同定位(或近似共定位)的接收频率扫描天线中,并且适于产生大致相同方向的窄接收波束,所述窄接收波束与大致相同的发射波束 视野 计算机处理器设备将接收毫米雷达信号的强度与发射和接收波束的预定范围和已知方向作为时间的函数进行比较,以产生视场的至少期望部分的雷达图像 。 在优选实施例中,本发明安装在卡车上并且适于作为FOD取景器系统来检测和定位机场表面上的FOD。

    Millimeter wave surface imaging radar system
    2.
    发明授权
    Millimeter wave surface imaging radar system 失效
    毫米波表面成像雷达系统

    公开(公告)号:US08362946B2

    公开(公告)日:2013-01-29

    申请号:US12806488

    申请日:2010-08-13

    IPC分类号: G01S13/89

    摘要: A short range millimeter wave surface imaging radar system. The system includes electronics adapted to produce millimeter wave radiation scanned over a frequency range of a few gigahertz. The scanned millimeter wave radiation is broadcast through a frequency scanned transmit antenna to produce a narrow transmit beam in a first scanned direction (such as the vertical direction) corresponding to the scanned millimeter wave frequencies. The transmit antenna is scanned to transmit beam in a second direction perpendicular to the first scanned direction (such as the horizontal or the azimuthal direction) so as to define a two-dimensional field of view. Reflected millimeter wave radiation is collected in a receive frequency scanned antenna co-located (or approximately co-located) with the transmit antenna and adapted to produce a narrow receive beam approximately co-directed in the same directions as the transmitted beam in approximately the same field of view. Computer processor equipment compares the intensity of the receive millimeter radar signals for a pre-determined set of ranges and known directions of the transmit and receive beams as a function of time to produce a radar image of at least a desired portion of the field of view. In preferred embodiment the invention is mounted on a truck and adapted as a FOD finder system to detect and locate FOD on airport surfaces.

    摘要翻译: 一种短距离毫米波表面成像雷达系统。 该系统包括适于产生在几千兆赫的频率范围上扫描的毫米波辐射的电子装置。 扫描的毫米波辐射通过频率扫描的发射天线广播,以在对应于扫描的毫米波频率的第一扫描方向(例如垂直方向)上产生窄的发射波束。 扫描发射天线以垂直于第一扫描方向的第二方向(例如水平或方位方向)发射波束,以便限定二维视场。 反射的毫米波辐射被收集在与发射天线共同定位(或近似共定位)的接收频率扫描天线中,并且适于产生大致相同方向的窄接收波束,所述窄接收波束与大致相同的发射波束 视野 计算机处理器设备将接收毫米雷达信号的强度与发射和接收波束的预定范围和已知方向作为时间的函数进行比较,以产生视场的至少期望部分的雷达图像 。 在优选实施例中,本发明安装在卡车上并且适于作为FOD取景器系统来检测和定位机场表面上的FOD。

    Cellular telephone system with free space millimeter wave trunk line

    公开(公告)号:US07062293B2

    公开(公告)日:2006-06-13

    申请号:US10799225

    申请日:2004-03-12

    IPC分类号: H04M1/00

    摘要: A wireless cellular communication system in which groups of cellular base stations communicate with a central office via a narrow-band millimeter wave trunk line. The transceivers are equipped with antennas providing beam divergence small enough to ensure efficient spatial and directional partitioning of the data channels so that an almost unlimited number of transceivers will be able to simultaneously use the same millimeter wave spectrum. In a preferred embodiment the trunk line communication link operates within the 92 to 95 GHz portion of the millimeter spectrum. A large number of base stations are each allocated a few MHz portion of a 900 MHz bandwidth of the millimeter wave trunk line. A first transceiver transmits at a first bandwidth and receives at a second bandwidth both within the above spectral range. A second transceiver transmits at the second bandwidth and receives at the first bandwidth. Antennas are described to maintain beam directional stability to less than one-half the half-power beam width. In a preferred embodiment the first and second spectral ranges are 92.3–93.2 GHz and 94.1–95.0 GHz and the half power beam width is about 0.36 degrees or less. Thus, in this system the low frequency band width is efficiently utilized over and over again by dividing a territory into small cells and using low power antenna. And a higher frequency bandwidth is efficiently utilized over and over again by using transmitting antennae that are designed to produce very narrow beams directed at receiving antennae. In a preferred embodiment cellular base stations are prepackaged for easy quick installation at convenient locations such as the tops of commercial buildings.

    Millimeter wave portal imaging system
    4.
    发明授权
    Millimeter wave portal imaging system 失效
    毫米波门户成像系统

    公开(公告)号:US07385549B2

    公开(公告)日:2008-06-10

    申请号:US11216277

    申请日:2005-08-30

    IPC分类号: G01S13/04 G01S13/88

    摘要: A millimeter wave portal imaging system for the detection of concealed weapons, explosives and other contraband items. A preferred millimeter wave imaging system includes a number (such as 64) of millimeter wave detection units each including a frequency scanning antenna and associated electronics. The units are mounted in four posts (16 per post) of a portal structure. Each unit collects frequency dependent beams of millimeter wave radiation from a narrow one-dimensional field of view. The collected radiation from each unit is amplified at the collected frequencies and the amplified signals are separated into frequency dependent bins with a tapped-delay beam-former. These bins are then sampled to produce a one-dimensional image of the antenna field of view. A two dimensional image of a portion of a person passing through the portal is obtained by moving the person (or having the person move) across the field of view of each of the frequency scanning antennas. The images from the antennas can be monitored separately or data from the antennas can be combined with a computer processor to form images of the person.

    摘要翻译: 一种用于检测隐蔽武器,爆炸物和其他违禁品的毫米波门控成像系统。 优选的毫米波成像系统包括多个(例如64个)毫米波检测单元,每个毫米波检测单元包括频率扫描天线和相关的电子设备。 这些单位安装在门户结构的四个职位(每个职位16个)中。 每个单元从狭窄的一维视场收集毫米波辐射的频率相关光束。 来自每个单元的收集的辐射以收集的频率被放大,并且放大的信号被分离成具有抽头延迟波束成形器的频率依赖的箱。 然后对这些箱进行采样以产生天线视场的一维图像。 通过在每个频率扫描天线的视场中移动人(或有人移动)来获得穿过门户的人的一部分的二维图像。 可以分别监视来自天线的图像,或者可以将来自天线的数据与计算机处理器组合以形成人的图像。

    Security system with metal detection and mm-wave imaging
    5.
    发明授权
    Security system with metal detection and mm-wave imaging 失效
    具有金属检测和mm波成像的安全系统

    公开(公告)号:US07248204B2

    公开(公告)日:2007-07-24

    申请号:US10903129

    申请日:2004-07-30

    IPC分类号: G01S13/04 G01S13/88

    CPC分类号: G01V8/005 H01Q3/22 H01Q3/2682

    摘要: A concealed weapons and contraband detection system combining metal detection equipment with millimeter wave imaging equipment. The preferred millimeter wave imaging equipment includes at least one millimeter wave frequency scanning antenna for collecting frequency dependent beams of millimeter wave radiation from a narrow one-dimensional field of view. The collected radiation is amplified at the collected frequencies and the amplified signals are separated into frequency dependent bins with a tapped-delay beam-former. These bins are then sampled to produce a one-dimensional image of the antenna field of view. A two dimensional image of a target may be obtained by moving the target across the field of view of the scanning antenna or by moving the antenna in order to scan its line of focus over the target. In preferred embodiments the millimeter wave imager is combined with an active eddy current type metal detector to provide a hybrid system providing important advantages over prior art security systems. Preferred embodiments include hybrid portal systems and hybrid hand-held systems.

    摘要翻译: 金属检测设备与毫米波成像设备相结合的隐蔽武器和违禁品检测系统。 优选的毫米波成像设备包括至少一个毫米波频率扫描天线,用于从窄的一维视场收集来自毫米波辐射的频率依赖的波束。 收集的辐射以收集的频率被放大,并且放大的信号被分离成具有抽头延迟波束成形器的频率依赖的箱。 然后对这些箱进行采样以产生天线视场的一维图像。 可以通过在扫描天线的视野上移动目标或通过移动天线以便在目标上扫描其焦点线来获得目标的二维图像。 在优选实施例中,毫米波成像仪与有源涡流型金属检测器组合以提供优于现有技术安全系统的重要优点的混合系统。 优选实施例包括混合门户系统和混合手持系统。

    Millimeter wave imaging system
    6.
    发明授权
    Millimeter wave imaging system 失效
    毫米波成像系统

    公开(公告)号:US06937182B2

    公开(公告)日:2005-08-30

    申请号:US10639322

    申请日:2003-08-12

    摘要: A millimeter wave imaging system that includes at least one millimeter wave frequency scanning antenna for collecting frequency dependent beams of millimeter wave radiation from a narrow one-dimensional field of view. The collected radiation is amplified at the collected frequencies and the amplified signals are separated into frequency dependent bins with a tapped-delay beam-former. These bins are then sampled to produce a one-dimensional image of the antenna field of view. A two dimensional image of a target may be obtained by moving the target across the field of view of the scanning antenna. In a preferred embodiment the antenna is only 4.5 inches in length and constructed from WR-10 waveguide with inclined slots cut in one of the narrow walls at 79 mil spacings. This geometry creates a frequency-scanned antenna spanning a 20 degree vertical field of view over a 75.5-93.5 GHz operational band of the sensor, starting at approximately 1 degree below horizontal at 93.5 GHz and ranging to approximately 21 degrees below horizontal at 75.5 GHz. In this embodiment 64 of these antenna elements are arranged in four stacks of 16 antennas focused at about 18 inches to construct a portal contraband screener.

    摘要翻译: 一种毫米波成像系统,其包括至少一个毫米波频率扫描天线,用于从窄的一维视场收集毫米波辐射的频率相关波束。 收集的辐射以收集的频率被放大,并且放大的信号被分离成具有抽头延迟波束成形器的频率依赖的箱。 然后对这些箱进行采样以产生天线视场的一维图像。 可以通过在扫描天线的视场上移动目标来获得目标的二维图像。 在优选实施例中,天线的长度仅为4.5英寸,由WR-10波导构成,其中倾斜的狭缝以79密耳间隔在一个窄壁上切割。 这种几何形状在传感器的75.5-93.5 GHz工作频带上形成一个跨越20度垂直视场的频率扫描天线,从93.5 GHz处的水平线以下约1度开始,距离75.5 GHz处水平线约为21度。 在这个实施例中,这些天线元件中的64个被布置在聚焦在约18英寸处的16个天线的四个堆叠中,以构建门禁违禁品筛选器。

    Millimeter wave imaging system
    7.
    发明授权
    Millimeter wave imaging system 有权
    毫米波成像系统

    公开(公告)号:US07194236B2

    公开(公告)日:2007-03-20

    申请号:US10728432

    申请日:2003-12-08

    IPC分类号: H04B7/14

    摘要: A millimeter wave imaging system that includes at least one millimeter wave frequency scanning antenna for collecting frequency dependent beams of millimeter wave radiation from a narrow one-dimensional field of view. The collected radiation is amplified at the collected frequencies and the amplified signals are separated into frequency dependent bins with a tapped-delay beam-former. These bins are then sampled to produce a one-dimensional image of the antenna field of view. A two dimensional image of a target may be obtained by moving the target across the field of view of the scanning antenna. In a preferred embodiment the antenna is only 4.5 inches in length and constructed from WR-10 waveguide with inclined slots cut in one of the narrow walls at 79 mil spacings. This geometry creates a frequency-scanned antenna spanning a 20 degree vertical field of view over a 75.5–93.5 GHz operational band of the sensor, starting at approximately 1 degree below horizontal at 93.5 GHz and ranging to approximately 21 degrees below horizontal at 75.5 GHz. In this embodiment 64 of these antenna elements are arranged in four stacks of 16 antennas focused at about 18 inches to construct a portal contraband screener. In another preferred embodiment called the single stick imager, the antenna is 24 inches long with 300 inclined slots serving as receive apertures.

    摘要翻译: 一种毫米波成像系统,其包括至少一个毫米波频率扫描天线,用于从窄的一维视场收集毫米波辐射的频率相关波束。 收集的辐射以收集的频率被放大,并且放大的信号被分离成具有抽头延迟波束成形器的频率依赖的箱。 然后对这些箱进行采样以产生天线视场的一维图像。 可以通过在扫描天线的视场上移动目标来获得目标的二维图像。 在优选实施例中,天线的长度仅为4.5英寸,由WR-10波导构成,其中倾斜的狭缝以79密耳间隔在一个窄壁上切割。 这种几何形状在传感器的75.5-93.5 GHz工作频带上形成一个跨越20度垂直视场的频率扫描天线,从93.5 GHz处的水平线以下约1度开始,距离75.5 GHz处水平线约为21度。 在这个实施例中,这些天线元件中的64个被布置在聚焦在约18英寸处的16个天线的四个堆叠中,以构建门禁违禁品筛选器。 在称为单棒成像器的另一优选实施例中,天线为24英寸长,具有用作接收孔的300个倾斜槽。

    Long range millimeter wave surface imaging radar system
    8.
    发明申请
    Long range millimeter wave surface imaging radar system 有权
    远程毫米波表面成像雷达系统

    公开(公告)号:US20120249363A1

    公开(公告)日:2012-10-04

    申请号:US13374362

    申请日:2011-12-22

    IPC分类号: G01S13/06

    摘要: A long range millimeter wave imaging radar system. Preferred embodiments are positioned to detect foreign object debris objects on surface of the runway, taxiways and other areas of interest. The system includes electronics adapted to produce millimeter wave radiation scanned over a frequency range of a few gigahertz. The scanned millimeter wave radiation is broadcast through a frequency scanned antenna to produce a narrow scanned transmit beam in a first scanned direction (such as the vertical direction) defining a narrow, approximately one dimensional, electronically scanned field of view corresponding to the scanned millimeter wave frequencies. The antenna is mechanically pivoted or scanned in a second scanned direction perpendicular to the first scanned direction so as to define a two-dimensional field of view.

    摘要翻译: 远程毫米波成像雷达系统。 定位优选实施例以检测跑道,滑行道和其他感兴趣区域的表面上的异物物体。 该系统包括适于产生在几千兆赫的频率范围上扫描的毫米波辐射的电子装置。 通过频率扫描天线广播扫描的毫米波辐射,以在第一扫描方向(例如垂直方向)上产生窄扫描的发射波束,其限定对应于扫描的毫米波的窄的,大致一维的电子扫描的视场 频率 天线以垂直于第一扫描方向的第二扫描方向机械地枢转或扫描,以便限定二维视场。

    Long range millimeter wave surface imaging radar system
    9.
    发明授权
    Long range millimeter wave surface imaging radar system 有权
    远程毫米波表面成像雷达系统

    公开(公告)号:US08362948B2

    公开(公告)日:2013-01-29

    申请号:US13374362

    申请日:2011-12-22

    IPC分类号: G01S13/89

    摘要: A long range millimeter wave imaging radar system. Preferred embodiments are positioned to detect foreign object debris objects on surface of the runway, taxiways and other areas of interest. The system includes electronics adapted to produce millimeter wave radiation scanned over a frequency range of a few gigahertz. The scanned millimeter wave radiation is broadcast through a frequency scanned antenna to produce a narrow scanned transmit beam in a first scanned direction (such as the vertical direction) defining a narrow, approximately one dimensional, electronically scanned field of view corresponding to the scanned millimeter wave frequencies. The antenna is mechanically pivoted or scanned in a second scanned direction perpendicular to the first scanned direction so as to define a two-dimensional field of view.

    摘要翻译: 远程毫米波成像雷达系统。 定位优选实施例以检测跑道,滑行道和其他感兴趣区域的表面上的异物物体。 该系统包括适于产生在几千兆赫的频率范围上扫描的毫米波辐射的电子装置。 通过频率扫描天线广播扫描的毫米波辐射,以在第一扫描方向(例如垂直方向)上产生窄扫描的发射波束,其限定对应于扫描的毫米波的窄的,大致一维的电子扫描的视场 频率 天线以垂直于第一扫描方向的第二扫描方向机械地枢转或扫描,以便限定二维视场。

    Radio modulation technique using DMPSK for immproved BER

    公开(公告)号:US20180331710A1

    公开(公告)日:2018-11-15

    申请号:US15998058

    申请日:2018-06-20

    摘要: A millimeter wave radio link in which the transceivers have most of its components fabricated on a single chip or chipset of a small number of semiconductor chips. The chip or chipsets when mass produced is expected to make the price of millimeter wave radios comparable to many of the lower-priced microwave radios available today from low-cost foreign suppliers. Preferred embodiments of the present invention operate in the range of about 3.5 Gbps to more than 10 Gbps. The transceivers of a preferred embodiment are designed to receive binary input data at an input data rate in 10.3125 Gbps and to transmit at a transmit data rate in of 10.3125 Gbps utilizing encoded three-bit data symbols on a millimeter carrier wave at E-Band frequencies. Preferred embodiments include an averaging technique that greatly improves bit error rates. A constellation averaging technique is utilized to improve bit error rates.