公开(公告)号：EP3146641A1

公开(公告)日：2017-03-29

申请号：EP14728483.0

申请日：2014-05-23

申请人： Decawave Ltd.

发明人： MARROW, Gavin ,  MCLAUGHLIN, Michael ,  MCELROY, Ciaran

IPC分类号： H04B1/7163 ,  G01S19/00

CPC分类号： H04B1/7163 ,  G01S3/023 ,  G01S3/46

摘要： In an ultra-wideband ("UWB") receiver, a received UWB signal is periodically digitized as a series of ternary samples. During a carrier acquisition mode of operation, the samples are continuously correlated with a predetermined preamble sequence to develop a correlation value. When the value exceeds a predetermined threshold, indicating that the preamble sequence is being received, estimates of the channel impulse response ("CIR") are developed. When a start-of-frame delimiter ("SFD") is detected, the best CIR estimate is provided to a channel matched filter ("CMF"). During a data recovery mode of operation, the CMF filters channel-injected noise from the sample stream. Both carrier phase errors and data timing errors are continuously detected and corrected during both the carrier acquisition and data recovery modes of operation. The phase of the carrier can be determined by accumulating the correlator output before it is rotated by the carrier correction. By comparing the carrier phases of two receivers separated by a known distance,
d , the angle of incidence,
Θ , of the signal can be determined.

摘要翻译： 在超宽带（“UWB”）接收机中，接收的UWB信号被周期性地数字化为一系列三进制样本。 在载波采集操作模式期间，样本与预定的前同步码序列连续相关，以产生相关值。 当该值超过预定阈值时，指示正在接收前导码序列，则开发出信道脉冲响应（“CIR”）的估计。 当检测到起始帧定界符（“SFD”）时，将最佳CIR估计提供给信道匹配滤波器（“CMF”）。 在数据恢复操作模式期间，CMF对来自样本流的信道注入噪声进行滤波。 在载波捕获和数据恢复操作模式期间，两个载波相位误差和数据定时误差都被连续检测和校正。 可以通过在通过载波校正旋转之前累加相关器输出来确定载波的相位。 通过比较已知距离d分离的两个接收机的载波相位，可以确定信号的入射角Θ。

公开(公告)号：EP3100068A1

公开(公告)日：2016-12-07

申请号：EP15702574.3

申请日：2015-01-30

申请人： UCL Business Plc.

发明人： JAMIESON, Kyle ,  GJENGSET, Jon

IPC分类号： G01S3/02 ,  H04B17/12 ,  H04B17/21

CPC分类号： H04W64/00 ,  G01S3/023 ,  G01S3/48 ,  H04B17/12 ,  H04B17/21 ,  H04W84/12 ,  H04W88/08

摘要： A method and apparatus are provided for calibrating a wireless access point comprising an array of multiple (m) antennas denoted Ai (i=1 . . . m), each antenna having a respective internal phase offset φi. The method comprises receiving a signal from at least one transmitter located at a substantially known bearing from the wireless access point. The method further comprises determining an estimated value for each internal phase offseti such that an angle of arrival (AoA) spectrum calculated for the received signal on the basis of said estimated values matches the known bearing, wherein said AoA spectrum is calculated by treating said multiple antennas as a phased array. A method and an apparatus are also provided for calibrating a wireless access point comprising first and second arrays of multiple antennas, each antenna array having a respective radio unit, and each antenna in an array having a respective internal phase offseti. The method comprises using an antenna in the first antenna array to act as a transmitter located at a known distance from each antenna in the second antenna array, such that a signal from said transmitter is received at each antenna in the second antenna array. A phase for the received signal at each antenna in the second antenna array is measured in the radio unit, while an expected phase for the received signal is calculated, for each antenna in the second antenna array, based on the known distance of that antenna from the transmitter. The internal phase offseti, for each antenna in the second antenna array can then be determined from the difference between the measured phase and the calculated phase for that antenna.

公开(公告)号：EP2765389B1

公开(公告)日：2016-10-05

申请号：EP14154378.5

申请日：2014-02-07

申请人： The Boeing Company

发明人： Murphy, Tim

IPC分类号： G01C21/12 ,  G01S1/02 ,  G01S1/04 ,  G01S1/16 ,  G01C21/16 ,  G01S3/02 ,  G01S3/28

CPC分类号： B64D45/04 ,  G01C21/165 ,  G01S3/023 ,  G01S3/28

公开(公告)号：EP3058384A1

公开(公告)日：2016-08-24

申请号：EP13895752.7

申请日：2013-10-16

申请人： Nokia Technologies Oy

发明人： JIAO, Xianjun ,  ZHANG, Xin ,  CHEN, Canfeng

IPC分类号： G01S3/02

CPC分类号： G01S3/023 ,  G01S3/046 ,  G01S3/7865

摘要： Provided are methods, apparatuses, and computer program products for calibrating a direction-finding system in a handheld device. A method is provided, which comprises: displaying instructions for orienting a device such that an image of a calibration source through a camera of the device falls in a designated position on a screen of said device; receiving a signal from said calibration source via an antenna array of the device; calculating an orientation angle between said device and said calibration source based on said image of the calibration source; storing pairs of the signal and the orientation angle at various instances while moving or rotating the device to make the image of the calibration source move along a predefined trajectory displayed on the screen; and calibrating a direction-finding system in the device based on the stored pairs of the signal and the orientation angle.

摘要翻译： 提供了用于校准手持设备中的测向系统的方法，设备和计算机程序产品。 提供了一种方法，其包括：显示用于定向设备的指令，使得校准源的图像通过设备的照相机落在所述设备的屏幕上的指定位置; 经由所述装置的天线阵列从所述校准源接收信号; 基于所述校准源的图像计算所述设备和所述校准源之间的定向角度; 在移动或旋转设备以使得校准源的图像沿着显示在屏幕上的预定义轨迹移动时，在各种实例存储信号对和定向角度; 并且基于存储的信号对和定向角来校准装置中的测向系统。

公开(公告)号：EP2607916B1

公开(公告)日：2014-12-03

申请号：EP12197477.8

申请日：2012-12-17

申请人： Thales

发明人： DELAVEAU, François ,  LE MEINS, Cyrille

IPC分类号： G01S3/74 ,  G01S3/02

CPC分类号： G01S3/02 ,  G01S3/023 ,  G01S3/74

公开(公告)号：EP2765389A1

公开(公告)日：2014-08-13

申请号：EP14154378.5

申请日：2014-02-07

申请人： The Boeing Company

发明人： Murphy, Tim

IPC分类号： G01C21/12 ,  G01S1/02 ,  G01S1/04 ,  G01S1/16 ,  G01C21/16 ,  G01S3/02 ,  G01S3/28

CPC分类号： B64D45/04 ,  G01C21/165 ,  G01S3/023 ,  G01S3/28

摘要： Systems and methods to mitigate instrument landing system (ILS) overflight interference are disclosed. An example method performing a first measurement of a position of an aircraft relative to a first location based on an instrument landing system, performing a second measurement of the position of the aircraft based on inertial measurements performed over a first time period occurring prior to the first measurement, performing a third measurement of the position of the aircraft based on inertial measurements performed over a second time period greater than the first time period and occurring prior to the first measurement, and generating guidance information based on a selected one of the first, second, or third measurements of the position of the aircraft.

摘要翻译： 公开了减轻仪表着陆系统（ILS）飞越干扰的系统和方法。 基于仪器着陆系统执行飞行器相对于第一位置的位置的第一测量的示例性方法，基于在第一时间段之前发生的第一时间段执行的惯性测量来执行飞行器的位置的第二测量 测量，基于在大于所述第一时间段的第二时间段执行并且在所述第一测量之前发生的惯性测量，执行所述飞行器的位置的第三测量，以及基于所选择的所述第一，第二 ，或飞机位置的第三次测量。

公开(公告)号：EP1252531B1

公开(公告)日：2014-01-15

申请号：EP00942635.4

申请日：2000-05-12

申请人： Honeywell International Inc.

发明人： JONES, James ,  BRANDAO, Ruy, C. ,  BRANDAO, Ruy, L. ,  RINGWALD, Rand

IPC分类号： G01S3/48 ,  G01S3/02 ,  G01S13/93

CPC分类号： G01S3/48 ,  G01S3/023 ,  G01S13/9303

公开(公告)号：EP2607915A1

公开(公告)日：2013-06-26

申请号：EP12197476.0

申请日：2012-12-17

申请人： Thales

发明人： Delaveau, François ,  Le Meins, Cyrille

IPC分类号： G01S3/74 ,  G01S3/02

CPC分类号： G01S3/02 ,  G01S3/023 ,  G01S3/74

摘要： L'invention concerne un procédé de localisation de sources émettrices par exploitation du couplage mutuel d'un réseau antennaire de petite base et un système récepteur mono-voie à commutation lente mettant en oeuvre le procédé
L'invention porte sur une solution de radiogoniométrie mono-voie adaptée à une commutation lente de la voie de réception sur les différents éléments antennaires du réseau d'antennes.
L'invention permet de reconstituer une observation quasi-continue du signal d'entrée en exploitant les couplages et l'influence mutuelle entre éléments antennaires. L'invention permet ainsi de produire des estimateurs statistiques du signal observé sur des durées d'intégration longues afin d'améliorer significativement les performances des traitements de séparation de sources ou de détermination de la direction d'arrivée d'un signal.

摘要翻译： 该方法包括在接收具有由依次切换与预定开关周期的辐射元件的接收信道，并收集所接收的信号的样本来构造信号的空间矢量辐射元件的天线阵列的输入信号。 的统计估计值是基于所接收信号的调制函数来估计。 信号源是基于空间签名识别或的方向矢量和所述统计估计值的来源的识别位置。 因此独立claimsoft包括用于信号源定位的接收器系统。

公开(公告)号：EP2598903A1

公开(公告)日：2013-06-05

申请号：EP11813294.3

申请日：2011-07-29

申请人： Raytheon Applied Signal Technology, Inc.

发明人： GOOCH, Richard P. ,  ROSCOW, Alan W.

IPC分类号： G01S3/02

CPC分类号： G01S3/023 ,  G01S3/043 ,  G01S3/48 ,  G01S5/12

摘要： A system and method for geolocating an RF emitter disposed on or near the ground includes receiving a signal from the RF emitter at each antenna of an array of N non-collinear antennas, wherein N is an integer greater than 2; routing the signal received at each of the antennas to one of a bank of N corresponding receivers; downconverting the N received signals to N downconverted signals; digitizing the N downconverted signals to digitized signals on N corresponding channels; using a processor to determine phase and amplitude variations across the N channels and to determine a Direction Vector corresponding to the signal received from the RF emitter; using a 2-dimensional pre-determined calibration table to look up a best match to the Direction Vector to determine a Bearing Vector to the RF emitter; and transforming the Bearing Vector into locally level reference frame.

公开(公告)号：EP1543341B1

公开(公告)日：2012-10-24

申请号：EP03788594.4

申请日：2003-08-14

申请人： Wisterium Development LLC

发明人： SAUCIER, Norman, E.

IPC分类号： G01S3/02 ,  G01S13/02

CPC分类号： G01S13/0218 ,  G01S3/023 ,  G01S7/4026 ,  G01S2007/403 ,  G01S2007/4034