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公开(公告)号：US20020177405A1
公开(公告)日：2002-11-28
申请号：US10041083
申请日：2002-01-05
发明人： Richard Chedester , Paul Johnson , Thomas Lambert , Randall B. Olsen , John Lovberg , Kenneth Y. Tang , Vladimir Kolinko , George Houghton
IPC分类号： H04B007/24 , H04B001/38
CPC分类号： H04B10/1123 , G01V8/005 , H01Q1/125 , H01Q3/2682 , H01Q19/10 , H04B1/3805 , H04B7/0408 , H04B10/1149 , H04B10/40
摘要： An apparatus and method for aligning the antennas of two transceivers of a point-to-point wireless millimeter wave communications link. A narrow band oscillator power source is substituted for the signal transmitting electronics associated with a first antenna and a power detector is substituted for the signal receiving electronics of associated with a second antenna. In preferred embodiments after a first alignment procedure is performed, the procedure is repeated with an oscillator power source connected to the second antenna and a power detector connected to the first antenna. In other preferred embodiments the antennas are pre-aligned using a signaling mirror or a narrow beam search light or laser. After the antennas are aligned the transceiver electronics are reconnected. In preferred embodiments communication link operates within the 92 to 95 GHz portion of the millimeter spectrum and provides data transmission rates in excess of 155 Mbps.
摘要翻译： 一种用于对准点对点无线毫米波通信链路的两个收发器的天线的装置和方法。 窄带振荡器电源代替与第一天线相关联的信号传输电子装置，并且功率检测器代替与第二天线相关联的信号接收电子装置。 在优选实施例中，在执行第一对准过程之后，用与第二天线连接的振荡器电源和连接到第一天线的功率检测器重复该过程。 在其他优选实施例中，使用信号反射镜或窄波束搜索光或激光器预先对准天线。 天线对齐后，收发器电子设备重新连接。 在优选实施例中，通信链路在毫米波段的92至95GHz部分内工作，并提供超过155Mbps的数据传输速率。
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公开(公告)号：US20020164946A1
公开(公告)日：2002-11-07
申请号：US10000182
申请日：2001-12-01
发明人： Randell Olsen , Louis Slaughter , Chester Phillips , Paul Johnson , John Lovberg , Kenneth Y. Tang , George Houghton , Vladimir Kolinko
IPC分类号： H04H001/00
CPC分类号： G01V8/005 , G01S13/44 , H01Q1/125 , H01Q3/2682 , H01Q19/10 , H04B1/3805 , H04B7/0408 , H04B10/1123 , H04B10/1149 , H04B10/40
摘要： A communication network including a point-to-point, wireless, millimeter wave trunk line communications link at high data rates in excess of 1 Gbps. This link is combined with a local network which includes at least one multi-beam antenna to provide high speed digital data communication for multiple users. In preferred embodiments the network also includes Ethernet service to additional users. In these preferred embodiments many or most of these multiple users are temporary users such as participants at a conference. In a preferred embodiment, a trunk line communication link operates within the 92 to 95 GHz portion of the millimeter spectrum. 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. 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 spectrum.
摘要翻译： 一种包括高速数据速率超过1Gbps的点对点，无线，毫米波干线通信链路的通信网络。 该链路与包括至少一个多波束天线的本地网络组合，以为多个用户提供高速数字数据通信。 在优选实施例中，网络还包括向附加用户提供的以太网服务。 在这些优选实施例中，这些多个用户中的许多或大多数是诸如会议中的参与者的临时用户。 在优选实施例中，干线通信链路在毫米波段的92至95GHz部分内工作。 第一收发机以第一带宽传输并在上述频谱范围内以第二带宽接收。 第二收发器以第二带宽发送并以第一带宽进行接收。 收发器配备有提供足够小的光束发散的天线，以确保数据信道的有效的空间和方向分区，使得几乎无限数量的收发器将能够同时使用相同的频谱。
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公开(公告)号：US20020044276A1
公开(公告)日：2002-04-18
申请号：US09851672
申请日：2001-05-08
申请人： Microvision, Inc.
IPC分类号： H01L027/00 , G01C001/00 , G01B011/26
CPC分类号： G01S13/887 , G01B15/00 , G01V8/005 , H01L27/14609 , H01L27/14623 , H01L27/14625 , H01L27/14649
摘要： An imaging system includes a scanning reflector that sweeps through a periodic scan pattern to redirect millimeter wave energy from a target object to a detector. The imaging system may include one or more millimeter wave lenses that gather and focus the millimeter wave energy from the target object onto the reflector or the detector. The detector is super-cooled to increases sensitivity, so that the imaging system does not require an illumination source. For each location on the target object, the detector monitors the intensity of the millimeter wave energy and an electronic controller builds a memory map from the detector data. Because different materials block millimeter wave energy differently, the detector data, and thus the memory map corresponds to the structure of the target object. In one embodiment, the scanning reflector is a resonant scanner. The scanner may be a microelectromechanical (MEMs) or mesomechanical scanner.
摘要翻译： 成像系统包括扫描反射器，其扫描周期性扫描图案以将毫米波能量从目标物体重定向到检测器。 成像系统可以包括一个或多个毫米波透镜，其将来自目标物体的毫米波能量聚集并聚焦到反射器或检测器上。 检测器被超级冷却以增加灵敏度，使得成像系统不需要照明源。 对于目标对象上的每个位置，检测器监视毫米波能量的强度，并且电子控制器从检测器数据构建存储器映射。 由于不同的材料块毫米波能量不同，检测器数据，因此存储器映射对应于目标对象的结构。 在一个实施例中，扫描反射器是谐振扫描器。 扫描器可以是微机电（MEMs）或机械扫描仪。
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公开(公告)号：US06242740B1
公开(公告)日：2001-06-05
申请号：US09151325
申请日：1998-09-11
IPC分类号： H01L310232
CPC分类号： H04N5/30 , G01J3/2823 , G01J5/0837 , G01J5/20 , G01S3/784 , G01S13/887 , G01S17/89 , G01V8/005
摘要： The invention relates to detection performed over millimeter and submillimeter wavelengths, especially to imaging solutions functioning over a submillimeter-wavelength range. The system of the invention uses detectors, comprising antenna coupled bolometers together with wavelength selective optics. The detector matrix is preferably curved for reducing the number of imaging errors. In order to provide a curved detector matrix, the detector matrix is constituted by flat submatrices, each being provided with one or more integrated antenna coupled bolometers. The detectable frequency range is preferably limited in two stages, first by means of wavelength selective optics and secondly by means of the operating band of the antenna of an antenna coupled bolometer. In order to focus the incoming radiation on bolometers, the bolometer substrate is fitted or the surface or interior of the bolometer substrate is provided with a bolometer lens or a corresponding optical element in alignment with each bolometer.
摘要翻译： 本发明涉及在毫米波和亚毫米波长上执行的检测，特别涉及在亚毫米波长范围内运行的成像解决方案。 本发明的系统使用检测器，其包括与波长选择光学器件一起的天线耦合辐射热计。 检测器矩阵优选是弯曲的，以减少成像误差的数量。 为了提供弯曲的检测器矩阵，检测器矩阵由平坦的子矩阵构成，每个子矩阵都具有一个或多个集成的天线耦合辐射计。 可检测的频率范围优选地分为两个阶段，首先通过波长选择光学器件，其次通过天线耦合测辐射热计的天线的工作频带来限制。 为了将进入的辐射聚焦在测辐射热计上，测辐射热计基片被装配或测辐射热计基板的表面或内部设置有测辐射热量计透镜或与每个测辐射热计对准的相应的光学元件。
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公开(公告)号：US5455590A
公开(公告)日：1995-10-03
申请号：US212432
申请日：1994-03-14
CPC分类号： G01S13/887 , G01S13/89 , G01V8/005 , A61B5/05 , A61B5/7257 , A61B5/745
摘要： A holographic surveillance system including means for generating electromagnetic waves; means for transmitting the electromagnetic waves toward a target at a plurality of predetermined positions in space; means for receiving and converting electromagnetic waves reflected from the target to electrical signals at a plurality of predetermined positions in space; means for processing the electrical signals to obtain signals corresponding to a holographic reconstruction of the target; and means for displaying the processed information to determine nature of the target.The means for processing the electrical signals includes means for converting analog signals to digital signals followed by a computer means to apply a backward wave algorithm.
摘要翻译： 一种全息监视系统，包括产生电磁波的装置; 用于在空间中的多个预定位置向目标传送电磁波的装置; 用于在空间中的多个预定位置接收和转换从目标反射的电磁波到电信号的装置; 用于处理电信号以获得对应于目标的全息重建的信号的装置; 以及用于显示所处理的信息以确定目标的性质的装置。 用于处理电信号的装置包括用于将模拟信号转换成数字信号的装置，随后是用于应用反向波算法的计算机装置。
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公开(公告)号：US4521861A
公开(公告)日：1985-06-04
申请号：US373583
申请日：1982-04-30
CPC分类号： G01V8/005 , G01S13/86 , G01S7/4017 , G01S7/4021
摘要： Disclosed is a method and apparatus for enhancing target detection, particularly in the millimeter wave frequency range, through the utilization of an imaging radiometer. The radiometer, which is a passive thermal receiver, detects the reflected and emitted thermal radiation of targets within a predetermined antenna/receiver beamwidth. By scanning the radiometer over a target area, a thermal image is created. At millimeter wave frequencies, the received emissions from the target area are highly dependent on the emissivity of the target of interest. Foliage will appear "hot" due to its high emissivity and metals will appear cold due to their low emissivities. A noise power illuminator is periodically actuated to illuminate the target of interest. When the illuminator is actuated, the role of emissivity is reversed, namely poorly emissive targets will generally be good reflectors which in the presence of an illuminator will appear "hot". The highly emissive targets (such as foliage and dirt) which absorb most of the transmitted energy will appear almost the same as in a non-illuminated, passive image. Using a data processor, the intensity of the passive image is subtracted from the intensity of the illuminated, active image which thereby cancels the background foliage, dirt, etc. and the reflective metallic targets are enhanced.
摘要翻译： 公开了一种用于通过利用成像辐射计来增强目标检测的方法和装置，特别是在毫米波频率范围内。 作为无源热接收器的辐射计，在预定的天线/接收机波束宽度内检测目标的反射和发射的热辐射。 通过在目标区域上扫描辐射计，创建热图像。 在毫米波频率下，目标区域的接收到的排放量高度依赖于目标物体的辐射率。 由于其高发射率，叶子将出现“热”，由于其低发射率，金属将显得冷。 定期启动噪声功率照明器以照亮感兴趣的目标。 当照明器被启动时，发射率的作用被颠倒，即发射不良的目标通常是良好的反射器，其在照明器的存在下将出现“热”。 吸收大部分传输能量的高度发射目标（如叶子和污垢）将显示为与非照明的被动图像几乎相同。 使用数据处理器，从照明的活动图像的强度中减去被动图像的强度，从而抵消背景叶子，污物等，并且增强反射金属目标。
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公开(公告)号：US3599211A
公开(公告)日：1971-08-10
申请号：US3599211D
申请日：1968-12-16
申请人： AEROJET GENERAL CO
发明人： MARDON AUSTIN
CPC分类号： G01V8/005 , G01K11/006
摘要： This disclosure relates to a system for detecting metal in a background of terrain or water. It employs a radiometric receiver with input port means directed toward the area to be examined and responsive to thermal emission in two planes of polarization. The system includes means for displaying or comparing the relative emission temperatures in the two planes as an indication of the presence or absence of metal. Fundamentally, the system supresses false alarms due to water.
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公开(公告)号：US12050136B2
公开(公告)日：2024-07-30
申请号：US17203295
申请日：2021-03-16
申请人： Charles Partee
发明人： Charles Partee
CPC分类号： G01J5/53 , G01J5/026 , G01J5/041 , G01V8/005 , H04N5/33 , G01J2005/0077 , G01J5/48 , G01J5/802
摘要： The disclosed MMW wave sensing camera calibration arrangement that generally includes a millimeter wave camera that uses an energy emission calibration panel as a calibration standard. The MMW camera is positioned opposite the calibration panel in the MMW camera's field-of-view. The calibration panel is held at a constant temperature to provide a standard emission of millimeter waves that is sensed by an MMW sensor to set or otherwise calibrate the MMW camera to a baseline emissivity value corresponding to the panel. The MMW camera is linked to a microprocessor and non-transient computer memory containing a calibration routine that is configured to reset the baseline only when nothing obstructs the calibration panel's field-of-view. A visual display is linked to the MMW camera and configured to display an MMW signature of a metal object that is disposed on a person's body when the person's body is in the field-of-view, the metal object concealed by clothing worn over the person's body.
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公开(公告)号：US20240026274A1
公开(公告)日：2024-01-25
申请号：US17871573
申请日：2022-07-22
发明人： JEFFREY SOCHA , ALAN STOCKDALE , DANIEL STELLA
摘要： A foam identification system including a thermal imaging camera and a controller connected to the thermal imaging camera. The thermal imaging camera images a surface of a liquid in a vessel that is exposed to a headspace of the vessel. The headspace being either warmer or cooler than the liquid. The camera and the controller detect a change in temperature of the exposed surface of the liquid to identify foam on the exposed surface of the liquid.
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公开(公告)号：US20230400600A1
公开(公告)日：2023-12-14
申请号：US18332383
申请日：2023-06-09
申请人： VEGA Grieshaber KG
摘要： A microwave barrier system is provided, including: a first microwave barrier including a first microwave transmitter and receiver, the first transmitter including an electrically tunable microwave generator and being configured to be operated at a selectable microwave frequency; and a second microwave barrier including a second microwave transmitter and receiver, the second transmitter including an electrically tunable microwave generator and being configured to be operated at a selectable microwave frequency, the system being configured to determine microwave operating channels in an available frequency range for microwave barriers by one of the receivers, and to assign a respective microwave operating channel to at least one of the barriers to reduce mutual interference between the barriers, the barriers further including respective communication devices to signal-couple the respective receiver with the respective transmitter to transmit a microwave operating channel for operation of the barriers from the receivers to the transmitters.
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