公开(公告)号：EP3056922A3

公开(公告)日：2016-09-21

申请号：EP16154354.1

申请日：2016-02-04

申请人： Honeywell International Inc.

发明人： WINSTEAD, Benjamin J. ,  MOYA, Adam

IPC分类号： G01S13/58 ,  G01S13/60 ,  G01S13/88

CPC分类号： G01S13/60 ,  G01S13/4454 ,  G01S13/585 ,  G01S13/588 ,  G01S13/605 ,  G01S13/882

摘要： A method and system for estimating velocity of an aircraft is provided. The method comprises transmitting a beam toward a surface from the aircraft using a Doppler beam sharpened radar altimeter, receiving a plurality of reflected signals that correspond to portions of the transmitted beam that are reflected by the surface, and forming a plurality of Doppler beams by filtering the received signals. A complex-valued array of range bin is computed with respect to frequency of the Doppler beams from at least one antenna aperture of the radar altimeter, and a range for each of the Doppler beams is estimated. A velocity vector magnitude for the aircraft is estimated by a curve fit of the range with respect to the frequency of the Doppler beams.

公开(公告)号：EP0808463A1

公开(公告)日：1997-11-26

申请号：EP96909476.0

申请日：1996-02-01

申请人： AlliedSignal Inc.

发明人： BRANDAO, Ruy, L. ,  MANSEUR, Arezki ,  SPIRES, Randall, C. ,  WEIST, William, C. ,  HERMANN, Philip, R.

IPC分类号： G01S13 ,  G01S7

CPC分类号： G01S13/951 ,  G01S7/292 ,  G01S13/524 ,  G01S13/585 ,  G01S2007/2883 ,  G01S2007/2886 ,  Y02A90/18

摘要： A method for removing clutter related frequency components from power spectrums generated from weather radar return signals to provide improved windshear detection capability. Weather radar return signals are synchronously detected and digitized to provide i and q time domain sample sequences. The i and q time domain sample sequences are passed through a window function and then transformed to frequency domain sequences by a Fast Fourier Transform. A power spectrum is generated from the frequency domain sequences. The spectrum is subjected to a Spectral Gaussian Envelope Discrimination (SGED) process in which the spectral envelope is scanned to identify any lobe therein having a slope greater than a predetermined minimum. A first pseudo-Gaussian sigma, calculated from the width and maximum amplitude of any such lobe, is compared with a second pseudo-Gaussian sigma, calculated from known conditions. If the first sigma is less than the second sigma, the lobe is deemed to be clutter related and is edited from the spectral envelope.

公开(公告)号：EP3056922A2

公开(公告)日：2016-08-17

申请号：EP16154354.1

申请日：2016-02-04

申请人： Honeywell International Inc.

发明人： WINSTEAD, Benjamin J. ,  MOYA, Adam

IPC分类号： G01S13/58 ,  G01S13/60 ,  G01S13/88

CPC分类号： G01S13/60 ,  G01S13/4454 ,  G01S13/585 ,  G01S13/588 ,  G01S13/605 ,  G01S13/882

摘要： A method and system for estimating velocity of an aircraft is provided. The method comprises transmitting a beam toward a surface from the aircraft using a Doppler beam sharpened radar altimeter, receiving a plurality of reflected signals that correspond to portions of the transmitted beam that are reflected by the surface, and forming a plurality of Doppler beams by filtering the received signals. A complex-valued array of range bin is computed with respect to frequency of the Doppler beams from at least one antenna aperture of the radar altimeter, and a range for each of the Doppler beams is estimated. A velocity vector magnitude for the aircraft is estimated by a curve fit of the range with respect to the frequency of the Doppler beams.

摘要翻译： 提供了一种估计飞机速度的方法和系统。 该方法包括使用多普勒波束锐化雷达高度计向飞机表面发射波束，接收与由表面反射的发射波束的部分相对应的多个反射信号，并且通过滤波形成多个多普勒波束 接收到的信号。 针对来自雷达高度计的至少一个天线孔径的多普勒波束的频率来计算复数值范围区间的阵列，并且估计每个多普勒波束的范围。 航空器的速度矢量幅度通过该范围相对于多普勒波束频率的曲线拟合来估计。

公开(公告)号：EP0534056B1

公开(公告)日：1996-10-16

申请号：EP92108902.5

申请日：1992-05-27

申请人： Daimler-Benz Aerospace Aktiengesellschaft

发明人： Schulz, Matthias, Dipl.-Ing. ,  Stammler, Walter, Dr.

IPC分类号： G01S13/58

CPC分类号： G01P5/241 ,  G01S13/585 ,  G01S13/60

公开(公告)号：EP0125108A3

公开(公告)日：1986-06-25

申请号：EP84302974

申请日：1984-05-03

申请人： DEERE & COMPANY

发明人： Hoffa, Robert John ,  Burde, Carl Martin

IPC分类号： G01S13/60 ,  G01S13/58

CPC分类号： G01S13/585 ,  G01S13/60

摘要： A vehicle carries a radar transmitter (12) and receiver (14) which provides a Doppler signal representing vehicle ground speed. The Doppler signal is processed by a Schmitt trigger (18) and a flip-flop (20)to generate a symmetrical square wave whose instantaneous pulse-width is the reciprocal of the Doppler frequency. A microprocessor is interrupted by edges of the square wave and processes the pulse-width to produce a symmetrical output square wave (23). The processing steps comprise:
(1) Input pulse widths exceeding a threshold value set by a timer are ignored (2) When the input pulse width INVAL is within 12½% of the output pulse width OUTVALthe latter is updated in accordance with a weighted average, OUTVAL = (15 OUTVAL + INVAL)/16 (3) When the input pulse width INVAL deviates more than 12;% from the output pulse width OUTVAL no updating occurs unless this situation has persisted for 8 or more input pulses, whereupon more abrupt updating occurs in accordance with a second weighted average
OUTVAL = (3 OUTVAL + INVAL)/4
where INVAL is the average INVAL over 8 input pulses when the second weighted average is first used but is the latest input width when the situation has persisted for more than 8 input pulses.

公开(公告)号：EP3056922B1

公开(公告)日：2018-05-09

申请号：EP16154354.1

申请日：2016-02-04

申请人： Honeywell International Inc.

发明人： WINSTEAD, Benjamin J. ,  MOYA, Adam

IPC分类号： G01S13/58 ,  G01S13/60 ,  G01S13/88

CPC分类号： G01S13/60 ,  G01S13/4454 ,  G01S13/585 ,  G01S13/588 ,  G01S13/605 ,  G01S13/882 ,  G01S2007/2883

摘要： A method and system for estimating velocity of an aircraft is provided. The method comprises transmitting a beam toward a surface from the aircraft using a Doppler beam sharpened radar altimeter, receiving a plurality of reflected signals that correspond to portions of the transmitted beam that are reflected by the surface, and forming a plurality of Doppler beams by filtering the received signals. A complex-valued array of range bin is computed with respect to frequency of the Doppler beams from at least one antenna aperture of the radar altimeter, and a range for each of the Doppler beams is estimated. A velocity vector magnitude for the aircraft is estimated by a curve fit of the range with respect to the frequency of the Doppler beams.

公开(公告)号：EP3054314A1

公开(公告)日：2016-08-10

申请号：EP16153545.5

申请日：2016-01-31

申请人： Honeywell International Inc.

发明人： WINSTEAD, Benjamin J. ,  REILLY, Timothy J.

IPC分类号： G01S13/58 ,  G01S13/88 ,  G01S13/60

CPC分类号： G01S13/582 ,  G01S7/285 ,  G01S7/354 ,  G01S13/10 ,  G01S13/18 ,  G01S13/585 ,  G01S13/605 ,  G01S13/87 ,  G01S13/882

摘要： Systems and methods for using velocity measurements to adjust Doppler filter bandwidth are provided herein. In certain embodiments, a method for adjusting bandwidth for at least one Doppler filter in a Doppler beam sharpened radar altimeter comprises receiving a velocity measurement; adjusting the bandwidth of the at least one Doppler filter based on the velocity measurement; and transmitting a radar beam, wherein the radar beam is aimed toward a surface. The method further comprises receiving at least one reflected signal, wherein the at least one reflected signal is a reflection of the radar beam being reflected off of at least one portion of the surface; and filtering the at least one reflected signal with the at least one Doppler filter to form at least one Doppler beam.

摘要翻译： 在提供了使用速度测量来调整多普勒滤波器带宽的系统和方法。 在某些实施例中，一种用于在多普勒束调节带宽的至少一个多普勒滤波器的方法削尖雷达高度表包括：接收速度测量; 基于所述速度测量的所述至少一个多普勒滤波器的带宽; 和发射的雷达波束，worin雷达波束朝向表面瞄准。 该方法还包括：接收至少一个反射信号，worin所述至少一个反射信号是雷达波束的反射被反射离开表面的至少一个部分的; 和过滤与所述至少一个多普勒滤波器的所述至少一个反射信号以形成至少一个多普勒束。

公开(公告)号：EP2048515A1

公开(公告)日：2009-04-15

申请号：EP07403002.4

申请日：2007-10-11

申请人： ROBOT Visual Systems GmbH

发明人： Behrens, Andreas ,  Dohmann, Bernhard ,  Terlau, Norbert

IPC分类号： G01S13/91 ,  G01S13/92 ,  G08G1/017 ,  G08G1/054

CPC分类号： G01S13/91 ,  G01S13/42 ,  G01S13/585 ,  G01S13/92 ,  G08G1/0175

摘要： Verfahren zur Erfassung und Dokumentation von Rotlichtverstößen und/oder Geschwindigkeitsverstößen, bei der eine Radarstrahlung über alle interessierenden Fahrspuren einer Fahrbahn gerichtet wird und aus den Radarsignalen die Geschwindigkeit und die Position eines die Radarstrahlung durchfahrenden Fahrzeuges A ermittelt wird, um aus der Geschwindigkeit v und dem ermittelten Abstand des angemessenen Fahrzeuges zu einer Haltelinie 2 die Wahrscheinlichkeit eines Rotlichtverstoßes prognostizieren zu können und die Aufnahme von Fotos vom verstoßenden Fahrzeug in vorgewählten Abständen zur Haltelinie 2 auszulösen.

摘要翻译： 该方法包括确定设置在车道上的停止线（2）的相对位置，并且从雷达信号导出位于观察区域内的撞击点（P1）的相对位置。 从相对位置确定从点到一行的垂直距离，并将其分配给该点。 速度来自雷达信号，并被分配给该点。 基于车速和距离，在车辆通过的时间点关闭线路。 当这个时间点在交通信号灯的绿色阶段之外时，相机被激活。

公开(公告)号：EP0277772B1

公开(公告)日：1993-08-18

申请号：EP88300745.2

申请日：1988-01-28

申请人： LEAR ASTRONICS CORPORATION

发明人： Yair, Alon

IPC分类号： G01S13/58

CPC分类号： G01S13/585 ,  G01S13/582

公开(公告)号：EP3054314B1

公开(公告)日：2018-09-26

申请号：EP16153545.5

申请日：2016-01-31

申请人： Honeywell International Inc.

发明人： WINSTEAD, Benjamin J. ,  REILLY, Timothy J.

IPC分类号： G01S13/58 ,  G01S13/88 ,  G01S13/60

CPC分类号： G01S13/582 ,  G01S7/285 ,  G01S7/354 ,  G01S13/10 ,  G01S13/18 ,  G01S13/585 ,  G01S13/605 ,  G01S13/87 ,  G01S13/882

摘要： Systems and methods for using velocity measurements to adjust Doppler filter bandwidth are provided herein. In certain embodiments, a method for adjusting bandwidth for at least one Doppler filter in a Doppler beam sharpened radar altimeter comprises receiving a velocity measurement; adjusting the bandwidth of the at least one Doppler filter based on the velocity measurement; and transmitting a radar beam, wherein the radar beam is aimed toward a surface. The method further comprises receiving at least one reflected signal, wherein the at least one reflected signal is a reflection of the radar beam being reflected off of at least one portion of the surface; and filtering the at least one reflected signal with the at least one Doppler filter to form at least one Doppler beam.