公开(公告)号：US20180128900A1

公开(公告)日：2018-05-10

申请号：US15575893

申请日：2016-05-20

Applicant: Richard AL HADI

Inventor： Richard AL HADI

IPC: G01S7/03 ,  G01S7/491 ,  G01S17/89 ,  G01S7/481 ,  G01S13/90

CPC classification number: G01S7/03 ,  G01S7/35 ,  G01S7/481 ,  G01S7/4911 ,  G01S7/4913 ,  G01S13/89 ,  G01S13/904 ,  G01S13/9064 ,  G01S17/89 ,  G01S2007/028

Abstract: A method for generating and detecting centimeter, submillimeter or millimeter electromagnetic waves, including the use of a single electronic device as generation source and as detector of the waves emitted from the source. A system for generating and detecting centimeter, submillimeter or millimeter electromagnetic waves, including an electronic device (1, 3) forming both a generation source and the detector of the waves emitted from the source. In one aspect, the electromagnetic waves are terahertz electromagnetic waves.

公开(公告)号：US20170299716A1

公开(公告)日：2017-10-19

申请号：US15344774

申请日：2016-11-07

Applicant: SAAB AB

Inventor： Hans Hellsten

IPC: G01S13/90 ,  G01S13/02 ,  G01S7/292 ,  G01S13/88 ,  G01S7/02

CPC classification number: G01S13/904 ,  G01S7/025 ,  G01S7/292 ,  G01S13/02 ,  G01S13/885 ,  G01S13/90 ,  G01S13/9076

Abstract: A method and system for obtaining SAR images with reduced or eliminated surface clutter to detect subsurface targets, the method comprising the following steps: -selecting a first frequency and an incidence angle for the radar signal such that the ratio of surface backscattering to subsurface target backscattering is significantly larger for vertical polarization than for horizontal -obtaining vertically and horizontally polarized SAR images based on the same SAR path exploiting the selected first frequency and viewing angle -weighting and differencing the vertically and horizontally polarized SAR images so that the surface backscattering completely cancels between the two images and only the combination of the target backscattering components remains.

公开(公告)号：US20170153325A1

公开(公告)日：2017-06-01

申请号：US15361238

申请日：2016-11-25

Applicant: BRADAR INDUSTRIA S.A.

Inventor： João Roberto MOREIRA NETO ,  Kostyantyn Alexandrovich LUKIN

IPC: G01S13/90

CPC classification number: G01S13/904 ,  G01S13/424 ,  G01S13/426 ,  G01S13/878 ,  G01S13/9082 ,  G01S13/94

Abstract: A SYSTEM FOR DETECTING AND VISUALIZING TARGETS BY AIRBORNE RADAR, comprising a plurality of N antennae with a narrow beam in elevation and wide in azimuth, regularly disposed on a rotary base coupled to an engine, the elevation orientations of said antennae being staggered according to a defined pattern, each antenna being associated to a radar device endowed with computer means furnishing information relating to distance, azimuth, elevation and speed of fixed and moving obstacles above and below the plane of said rotary base. Some antennae point towards a place above the horizon, the angles of view being progressively descending so as to cover a volume that extends above and below the plane of the horizon, and may reach the ground. Said volume results from the sum of the volumes of superimposed cones, each cone corresponding to an elevation angle. The system combines the images of the N conical volumes to provide the pilot or operator a three-dimensional image.

公开(公告)号：US20120291553A1

公开(公告)日：2012-11-22

申请号：US13575231

申请日：2011-02-28

Applicant: Krishnan Balasubramaniam ,  Saivathan Alavudeen ,  Chitti Venkatta Krishnamurthy

Inventor： Krishnan Balasubramaniam ,  Saivathan Alavudeen ,  Chitti Venkatta Krishnamurthy

IPC: G01N29/26 ,  G01S13/89 ,  G01N21/88

CPC classification number: G01N29/069 ,  G01N29/262 ,  G01S7/52036 ,  G01S7/5209 ,  G01S13/90 ,  G01S13/904 ,  G01S15/8915 ,  G01S15/8927 ,  G01S15/8997 ,  G01S17/89 ,  G01S17/895

Abstract: The invention relates to a method and a device for detecting, measuring and evaluating defects in an object and/or specific material property of an object using a phased array wave technique. The device comprises of a phased array transceiver probe/source and control unit for use in a phased array wave technique for transmitting and receiving wave signals on and from the area to be inspected. The phased array source is divided into a plurality of virtual probes/sources and each virtual probe/source comprises of plurality of elements arranged sequentially but without phasing for excitation.

Abstract translation: 本发明涉及使用相控阵波技术来检测，测量和评估物体中的缺陷和/或物体的特定材料特性的方法和装置。 该装置包括相控阵收发器探头/源和控制单元，用于在相位阵列波技术中用于在待检查区域上和从被检查区域发射和接收波信号。 相控阵列源被分成多个虚拟探针/源，并且每个虚拟探针/源包括顺序布置的多个元件，但不相位激励。

公开(公告)号：US20090273509A1

公开(公告)日：2009-11-05

申请号：US12436044

申请日：2009-05-05

Applicant: LAWRENCE FULLERTON

Inventor： LAWRENCE FULLERTON

IPC: G01S13/90

CPC classification number: G01S13/887 ,  G01S7/411 ,  G01S13/904

Abstract: A system and method for using microwaves for forming a three-dimensional image of a target are disclosed. One or more RF waveforms are emitted toward the target on a plurality of frequencies from an array of antennas positioned around the target. Each antenna in the array of antennas is selectively controlled to receive multi-frequency RF energy from one or more emitted RF waveforms that is scattered by the target. The multi-frequency RF energy is coherently digitized as reflection data. The reflection data is then processed to form a three-dimensional image of an area in proximity of the platform and including the target.

Abstract translation: 公开了一种用于形成目标的三维图像的微波的系统和方法。 从位于目标周围的天线阵列在多个频率上向目标发射一个或多个RF波形。 天线阵列中的每个天线被选择性地控制以从由目标散射的一个或多个发射的RF波形接收多频RF能量。 多频RF能量被相干地数字化为反射数据。 然后处理反射数据以形成平台附近并包括目标的区域的三维图像。

公开(公告)号：US20040201513A1

公开(公告)日：2004-10-14

申请号：US10475596

申请日：2003-10-23

Inventor： Helmut Klausing ,  Horst Kaltschmidt

IPC: G01S013/90

CPC classification number: G01S13/904

Abstract: The invention relates to a radar system for active obstacle warning and imaging of the surface of the earth, working in the pulse frequency or FM-CW range, which can be used in on-line operation in real time, comprising a plurality of antenna elements for sending and receiving radar signals, which are arranged on the fuselage of an aircraft, and which may be turned on and scanned sequentially, whereby a synthetic aperture can be generated by means of periodic sending and receiving of the antenna elements. According to the invention, the antenna elements are arranged along the curved surface of the aircraft contour, whereby a SAR processor is present, which analyzes the data obtained from the antenna elements and displays them as processed radar images on board the aircraft, in a virtual cockpit.

Abstract translation: 本发明涉及一种用于主动障碍物警报和地球表面成像的雷达系统，其工作在脉冲频率或FM-CW范围内，可实时在线操作，包括多个天线元件 用于发送和接收布置在飞行器的机身上的雷达信号，并且其可以被依次打开和扫描，从而可以通过周期性地发送和接收天线元件来产生合成孔径。 根据本发明，天线元件沿着飞行器轮廓的曲面布置，由此存在SAR处理器，其分析从天线元件获得的数据，并将它们作为经处理的雷达图像显示在飞行器上，虚拟 座舱。