公开(公告)号：EP3405807A1

公开(公告)日：2018-11-28

申请号：EP17742108.8

申请日：2017-01-23

申请人： Texas Instruments Incorporated

发明人： MURALI, Sriram ,  SUBBURAJ, Karthik ,  RAMASUBRAMANIAN, Karthik

IPC分类号： G01S7/40

CPC分类号： G01S7/352 ,  G01S7/4021 ,  G01S13/931 ,  G01S2007/358 ,  G01S2007/406

摘要： A radar system is provided that includes a receive channel configured to receive a reflected signal and to generate a first digital intermediate frequency (IF) signal based on the reflected signal, a reference receive channel configured to receive a reflected signal and to generate a second digital IF signal based on the reflected signal, and digital mismatch compensation circuitry coupled to receive the first digital IF signal and the second digital IF signal, the digital mismatch compensation circuitry configured to process the first digital IF signal and the second digital IF signal to compensate for mismatches between the receive channel and the reference receive channel.

公开(公告)号：EP3312629A3

公开(公告)日：2018-06-13

申请号：EP17199843.8

申请日：2012-02-20

申请人： Transrobotics, Inc.

发明人： ALALUSI, Sayf

IPC分类号： G01S13/06 ,  G01S17/06 ,  G01S7/03 ,  G01S7/35 ,  G01S13/32 ,  G01S17/32 ,  G01S13/88 ,  G01S7/497 ,  G01S13/86

CPC分类号： G01S13/36 ,  G01S7/03 ,  G01S7/352 ,  G01S7/41 ,  G01S7/497 ,  G01S13/103 ,  G01S13/325 ,  G01S13/867 ,  G01S13/88 ,  G01S17/32 ,  G01S17/36 ,  G01S2007/358

摘要： A method (e.g., a method for measuring a separation distance to a target object) includes transmitting an electromagnetic first transmitted signal from a transmitting antenna toward a target object that is a separated from the transmitting antenna by a separation distance. The first transmitted signal includes a first transmit pattern representative of a first sequence of digital bits. The method also includes receiving a first echo of the first transmitted signal that is reflected off the target object, converting the first echo into a first digitized echo signal, and comparing a first receive pattern representative of a second sequence of digital bits to the first digitized echo signal to determine a time of flight of the first transmitted signal and the echo.

公开(公告)号：EP2904420A4

公开(公告)日：2016-05-25

申请号：EP13844396

申请日：2013-10-03

申请人： TRANSROBOTICS INC

发明人： AL-ALUSI SAYF

IPC分类号： G01S13/50 ,  A61B5/113 ,  G01S13/08

CPC分类号： A61B5/1128 ,  A61B5/0035 ,  A61B5/0205 ,  A61B5/024 ,  A61B5/02416 ,  A61B5/05 ,  A61B5/0507 ,  A61B5/0816 ,  A61B5/11 ,  A61B5/1112 ,  A61B5/1114 ,  A61B5/1117 ,  A61B5/1118 ,  A61B5/113 ,  A61B5/1135 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/7246 ,  A61B5/7278 ,  A61B2562/0233 ,  A61B2576/00 ,  G01S7/415 ,  G01S13/325 ,  G01S13/50 ,  G01S13/87 ,  G01S13/88 ,  G01S2007/358

摘要： A sensing system (11) includes a first radar sensing assembly (10; 3104, 3106; 4100, 4200) and an analysis system (18). The first radar sensing assembly (10; 3104, 3106; 4100, 4200) measures plural distances (12; 22, 30; 42, 50, 60, 70, 80; 4102, 4202) to a first target location (16) at different times using radar. The analysis system (18) receives the plural distances (12; 22, 30; 42, 50, 60, 70, 80; 4102, 4202) from the first radar sensing assembly (10; 3104, 3106; 4100, 4200) and quantifies movements of a target object (14) at the first target location (16) at the different times by calculating differences in the plural distances (10; 3104, 3106; 4100, 4200) measured by the first radar sensing assembly (10; 3104, 3106; 4100, 4200). The analysis system (18) generates one or more first quantified activity level values indicative of the movements of the target object (14) at the first target location (16) using the differences in the plural distances (12; 22, 30; 42, 50, 60, 70, 80; 4102, 4202) that are calculated.

公开(公告)号：EP3017318A1

公开(公告)日：2016-05-11

申请号：EP13753410.3

申请日：2013-07-01

申请人： Balluff GmbH

发明人： FERICEAN, Sorin ,  EBERSPÄCHER, Mark

IPC分类号： G01S13/32 ,  G01S13/36

CPC分类号： G01S13/36 ,  G01S13/32 ,  G01S2007/358

摘要： The invention relates to a proximity sensor (10) and to a method for measuring the distance (D) from an object (12). The proximity sensor (10) contains a microwave oscillator (52) which provides, as an output signal (54), a transmission wave (16) which is emitted by the proximity sensor (10) in the direction of the object (12) as a free space transmission wave (16c) which is reflected by the object (12), which is electrically conductive or has at least one electrically conductive surface, as a free space reflection wave (30a) and is received by the proximity sensor (10) as a reflection wave (30), wherein the reflection coefficient (Γ) is determined from the transmission wave (16) and the reflection wave (30) and is provided by the proximity sensor (10) as a measure of the distance (D). The proximity sensor (10) according to the invention and the method according to the invention are distinguished by the fact that the transmission wave (16) is guided in a waveguide (22) as a waveguide transmission wave (16b), that the transmission wave (16) is injected into the waveguide (22) with a wave mode which results in the waveguide transmission wave (16b) being separated at the aperture (26) at the front end of the waveguide (22) into the free space transmission wave (16c) and in the free space transmission wave (16c) propagating to the object (12).

公开(公告)号：EP2857857A1

公开(公告)日：2015-04-08

申请号：EP14185407.5

申请日：2014-09-18

申请人： Honeywell International Inc.

发明人： VACANTI, David C.

IPC分类号： G01S7/35 ,  G01S13/34

CPC分类号： G01S13/0209 ,  G01S7/03 ,  G01S7/35 ,  G01S7/352 ,  G01S13/34 ,  G01S13/4463 ,  G01S2007/358 ,  G01S2013/0245 ,  G01S2013/0254 ,  H01Q1/28 ,  H01Q1/42 ,  H01Q1/525 ,  H01Q21/065

摘要： A frequency-modulation, continuous-wave (FMCW) radar system may include a transmit array including a number of transmit antenna elements in a first dimension that is greater than a number of transmit antenna elements in a second dimension. The transmit array may output an FMCW transmit beam that illuminates an area with a greater extent in a first illumination dimension than in a second illumination dimension. The radar system may include a transmit electronics module that electronically scans the transmit beam in the second illumination dimension, and a receive array comprising receive antenna elements. The radar system may include a receive electronics module that generates, using a plurality of receive signals, a plurality of receive beams within the area illuminated by the transmit beam and electronically scans each receive beam in the second illumination dimension such that scanning of each receive beam is coordinated with scanning of the transmit beam.

摘要翻译： 频率调制连续波（FMCW）雷达系统可以包括发射阵列，其包括大于第二维度中的多个发射天线元件的第一维度中的多个发射天线元件。 发射阵列可以输出在第一照明尺寸上比在第二照明尺寸上更大程度地照射区域的FMCW透射束。 雷达系统可以包括以第二照明尺寸电子扫描发射波束的发射电子模块和包括接收天线元件的接收阵列。 雷达系统可以包括接收电子模块，该接收电子模块使用多个接收信号产生在由发射波束照射的区域内的多个接收波束，并以第二照明尺寸电子扫描每个接收波束，使得每个接收波束 与发射波束的扫描协调。

公开(公告)号：EP2666033A1

公开(公告)日：2013-11-27

申请号：EP11856370.9

申请日：2011-01-21

申请人： Freescale Semiconductor, Inc.

发明人： DEHLINK, Bernhard ,  TROTTA, Saverio

IPC分类号： G01S13/88 ,  G01S7/03

CPC分类号： G01S7/03 ,  G01S3/043 ,  G01S7/032 ,  G01S13/931 ,  G01S2007/2886 ,  G01S2007/358 ,  H01Q1/3233 ,  H01Q3/26

摘要： A phased-array receiver (600) comprises a plurality of analog beamforming receive channels (602), each comprising an antenna element (610) arranged to receive a radio frequency signal and a channel output (628) arranged to provide an analog channel output signal. At least one of the plurality of analog beamforming receive channels comprises an in-phase downconversion mixing circuit (614) connected to the antenna element and a local oscillator source (616) and arranged to provide a downconverted in-phase signal to a phase rotation circuit (612), and a quadrature downconversion mixing circuit (620) connected to the antenna element and the local oscillator source and arranged to provide a downconverted quadrature signal to the phase rotation circuit. The phase rotation circuit is arranged to provide to the channel output a phase-shifted analog output signal generated from the downconverted in-phase signal and the downconverted quadrature signal.

公开(公告)号：EP2204668B1

公开(公告)日：2012-08-22

申请号：EP10004096.3

申请日：2004-07-15

申请人： The Nippon Signal Co., Ltd.

发明人： Shirai, Toshihito ,  Ishige, Takaharu ,  Sakai, Masayoshi ,  Sannomiya, Wakana

IPC分类号： G01S11/08 ,  G01S7/35 ,  G01S7/292

CPC分类号： G01S11/08 ,  G01S7/292 ,  G01S7/354 ,  G01S2007/356 ,  G01S2007/358

摘要： The invention provides a reception time determining apparatus which can measure reception time to a high accuracy, without expanding an occupied bandwidth, and a distance measuring apparatus which uses the reception time determining apparatus. There is provided a reception time determining apparatus (11, 111) where a transmitter (1, 100) sends a transmission signal which produces a demodulation signal in which a signal change portion is unevenly distributed on a time axis, and there is provided: a demodulation section (12, 112) which receives and demodulates this transmission signal and outputs a demodulation signal in which a signal change portion is unevenly distributed on a time axis; a signal change portion detection section (13, 113) which detects the signal change portion of the demodulation signal which is output from the demodulation section (12, 112), and outputs a signal change portion detection signal; and a time measurement section (14, 114) which measures a reception time of the reception signal based on the signal change portion detection signal output from the signal change portion detection section (13, 113).

公开(公告)号：EP2196822A3

公开(公告)日：2011-11-02

申请号：EP09176730.1

申请日：2009-11-23

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： Burgaß, Stefan ,  Kakuschke, Chris Dr. ,  Richter, Olaf ,  Seisenberger, Claus

IPC分类号： G01S13/60 ,  G01S7/35

CPC分类号： G01S7/352 ,  G01S13/34 ,  G01S13/60 ,  G01S2007/356 ,  G01S2007/358

摘要： Die Erfindung betrifft ein Verfahren zum Betreiben eines zur Geschwindigkeits- und/oder Wegermittlung, insbesondere bei einem Schienenfahrzeug, vorgesehenen Doppler-Radarsensors, der einen Oszillator zur Erzeugung eines CW (Continuous Wave)-Signals aufweist sowie einen diesbezüglichen Doppler-Radarsensor. Zur Erweiterung des Messbereichs in Richtung Stillstand ist vorgesehen, dass das CW-Signal, insbesondere in einem stillstandsnahen Geschwindigkeitsbereich und bei Stillstand, in der Frequenz verändert, insbesondere mittels Frequenzsweeping moduliert, wird.

公开(公告)号：EP1742081A3

公开(公告)日：2008-07-30

申请号：EP06076223.4

申请日：2006-06-14

申请人： Delphi Technologies, Inc.

发明人： Alland, Stephen W.

IPC分类号： G01S7/288 ,  G01S7/35 ,  G01S13/52 ,  H04B7/08 ,  G01S13/93 ,  H01Q21/00 ,  G01S13/02

CPC分类号： G01S13/52 ,  G01S7/288 ,  G01S7/352 ,  G01S13/931 ,  G01S2007/356 ,  G01S2007/358 ,  G01S2013/0245 ,  G01S2013/9314 ,  G01S2013/9325 ,  G01S2013/9346 ,  G01S2013/935 ,  H01Q21/0006 ,  H04B7/01

摘要： Digital beamfonning is provided for use with electronically scanned radar. In an aspect, the present invention provides enhanced sensitivity, wide angle or field of view (FOV) coverage with narrow beams, minimized number of receivers, reduced sidelobes, eliminated grating lobes and beam compensation for target motion. In an aspect, the present invention employs a uniform overlapped subarray feed network (420), a time multiplexed switch matrix (424), and a restructured digital signal processor (430). Antenna channels share a receiver (406), rather than maintain a dedicated receiver for each antenna element, as in conventional systems. In an aspect, Doppler/frequency filtering (432) is performed on each antenna element or subarray output prior to digital beamforming (436). Further, Doppler compensation (434) is employed following Doppler/frequency filtering (432), followed by digital beamforming (436).

公开(公告)号：EP1705498A4

公开(公告)日：2007-04-04

申请号：EP04747595

申请日：2004-07-15

申请人： NIPPON SIGNAL CO LTD

发明人： SHIRAI TOSHIHITO ,  ISHIGE TAKAHARU ,  SAKAI MASAYOSHI ,  SANNOMIYA WAKANA

IPC分类号： G01S5/14 ,  G01S11/08 ,  G01S7/292 ,  G01S7/35 ,  G01S11/00 ,  H04B1/69 ,  H04J13/00

CPC分类号： G01S11/08 ,  G01S7/292 ,  G01S7/354 ,  G01S2007/356 ,  G01S2007/358

摘要： The invention provides a reception time determining apparatus which can measure reception time to a high accuracy, without expanding an occupied bandwidth, and a distance measuring apparatus which uses the reception time determining apparatus. There is provided a reception time determining apparatus (11, 111) where a transmitter (1, 100) sends a transmission signal which produces a demodulation signal in which a signal change portion is unevenly distributed on a time axis, and there is provided: a demodulation section (12, 112) which receives and demodulates this transmission signal and outputs a demodulation signal in which a signal change portion is unevenly distributed on a time axis; a signal change portion detection section (13, 113) which detects the signal change portion of the demodulation signal which is output from the demodulation section (12, 112), and outputs a signal change portion detection signal; and a time measurement section (14, 114) which measures a reception time of the reception signal based on the signal change portion detection signal output from the signal change portion detection section (13, 113).