-
公开(公告)号：US20170331545A1
公开(公告)日：2017-11-16
申请号：US15590421
申请日：2017-05-09
申请人： NXP B.V.
发明人： Wim van Houtum , Yan Wu
摘要： A receiver system comprising: an input terminal configured to receive input signalling comprising a plurality of antenna-signals, wherein the plurality of antenna-signals each comprise information that corresponds to a first-frequency-bin and a second-frequency-bin. AoA-blocks can determine a first-angle-of-arrival and a second-angle-of-arrival associated with the first- and second-frequency-bins. A first-weighting-determination-block configured to, based on the first-angle-of-arrival and the second-angle-of-arrival, either: set first-weighting-values as values for constructively combining the information that corresponds to the first-frequency-bins of the plurality of antenna-signals; or set first-weighting-values as values for destructively combining the information that corresponds to the first-frequency-bins of the plurality of antenna-signals.
-
2.发明授权Method and device for precise geolocation of low-power, broadband, amplitude-modulated signals 失效低功耗，宽带，幅度调制信号精确定位的方法和装置公开(公告)号：US06759983B2
公开(公告)日：2004-07-06
申请号：US10107811
申请日：2002-03-28
申请人： Richard C. Eden
发明人： Richard C. Eden
IPC分类号： G01S302
摘要： The invention relates to methods and devices for precise geolocation of low-power, broadband, amplitude-modulated rf and microwave signals having poor coherency. The invention provides a basis for dramatic improvements in RF receiver technology, offering much higher sensitivity, very strong rejection of unintended signals, and novel direction finding techniques. When mounted on an airborne surveillance platform, the invention can detect and geolocate weak, broadband, incoherent RF and/or microwave signals. Embodiments of the invention are implemented by dual channel receivers (heterodyne or tuned-RF) that use crystal detection and Fast Fourier Transform (FFT) analysis for geolocation. Geolocation is accomplished using a subsystem of phased arrays and an angle of arrival technique.
摘要翻译： 本发明涉及具有差相干性的低功率，宽带，幅度调制rf和微波信号的精确地理定位的方法和装置。 本发明为RF接收机技术的显着改进提供了基础，提供了更高的灵敏度，非常强的拒绝非预期信号以及新颖的方向发现技术。 当安装在机载监视平台上时，本发明可以检测和定位弱，宽带，非相干RF和/或微波信号。 本发明的实施例由对待地理定位使用晶体检测和快速傅立叶变换（FFT）分析的双通道接收器（外差或调谐RF）来实现。 使用相控阵列子系统和到达角技术实现地理定位。
-
公开(公告)号：US09488715B2
公开(公告)日：2016-11-08
申请号：US13958240
申请日：2013-08-02
申请人： RAYTHEON COMPANY
发明人： Andrew Huard , Amedeo Larussi , Kim McInturff
摘要： Characterizing a radiation pattern of an antenna, accurately, is needed to improve the determination of an angle arrival of a radar signal received by the antenna. Accordingly, an optimized monotonic fitting approach with corresponding method and system are provided. The approach represents an approximation of the radiation pattern as a window map having a plurality of windows. The approach finds an optimized monotonic fit of the radiation pattern by adjusting the window map, one window at a time, and testing the resulting new approximations. The approach tests whether a new approximation is a better fit then the other approximations, is monotonic, and has a minimum slope. The approach enforces monotonicity and a minimum slope for ambiguity resolution. The approach further includes calculating an angle arrival of the radar signal based on the optimized monotonic fit.
摘要翻译： 需要精确地表征天线的辐射图，以改善由天线接收的雷达信号的角度到达的确定。 因此，提供了一种具有相应方法和系统的优化单调拟合方法。 该方法表示作为具有多个窗口的窗口图的辐射图案的近似。 该方法通过调整窗口图，一次一个窗口并测试所得到的新近似值，找到辐射图案的优化单调拟合。 该方法测试新近似值是否更好拟合，然后其他近似值是单调的，并具有最小斜率。 该方法强制单调性和模糊度分辨率的最小斜率。 该方法还包括基于优化的单调拟合计算雷达信号的角度到达。
-
公开(公告)号：US20070115175A1
公开(公告)日：2007-05-24
申请号：US11288069
申请日：2005-11-22
申请人： Gregory Velicer , Robert Joy
发明人： Gregory Velicer , Robert Joy
IPC分类号： G01S5/04
CPC分类号： G01S3/36 , G01S19/015 , G01S19/14 , G01S19/18 , G01S19/21 , H04K3/22 , H04K3/90 , H04K2203/32
摘要： A handheld GPS jammer locator for locating a GPS jamming signal generated by a jammer. The handheld GPS jammer locator has two modes of operation, a amplitude mode and a difference finding mode. The amplitude measures the strength of an incoming GPS jamming signal and the difference finding mode determines the direction of the incoming jamming signal.
-
公开(公告)号：US20010020916A1
公开(公告)日：2001-09-13
申请号：US09772932
申请日：2001-01-31
发明人： Tsugihiro Kurihara , Hayato Akazawa
IPC分类号： G01S003/04
摘要： An object of the present invention is to provide a selective level measuring apparatus with wider dynamic range of effective value detection, compared with the range by a conventional one. The apparatus according to the present invention comprises a gain control means arranged before an effective value detection section for varying a gain by a control voltage, so that a signal level inputted into the effective value detection section may be kept to be constant level by the gain control means, and the signal level of the signal to be measured is measured and indicated through the control voltage. Performing such operations allows the selective level measuring apparatus for the effective value detection to secure a dynamic range defined by a variable quantity of the gain control means. Accordingly, the present invention provides the wider dynamic range of the effective value detection comparing with that by the conventional one.
摘要翻译： 本发明的目的是提供一种具有更宽动态范围的有效值检测的选择性水平测量装置，与常规测量装置的范围相比。 根据本发明的装置包括一个增益控制装置，该增益控制装置设置在用于通过控制电压改变增益的有效值检测部分之前，使得输入到有效值检测部分的信号电平可以通过增益保持为恒定电平 控制装置，并通过控制电压测量和指示待测信号的信号电平。 执行这样的操作允许用于有效值检测的选择性电平测量装置确保由可变量的增益控制装置限定的动态范围。 因此，与现有技术相比，本发明提供了有效值检测的更宽的动态范围。
-
公开(公告)号：US5619207A
公开(公告)日：1997-04-08
申请号：US659753
申请日：1996-06-06
申请人： Loek d'Hont
发明人： Loek d'Hont
CPC分类号： G06K7/10346 , G01S3/30 , G01S3/36 , G06K7/0008 , H01Q7/00 , G01S13/753 , G01S13/82
摘要： A balanced receive antenna circuit configuration determines an accurate position of a transponder within the antenna field pattern of the reader antenna. The balanced receive antenna configuration consists of two antennas physically rotated 90 degrees relative to one another, disposed concentrically on top of one another. Furthermore, each receive antenna consists of two coils located a predetermined distance apart. The optimum distance separating the coils is determined by trading off zero position detection with the transponder detection range. The transmitter antenna surrounds the receiver coilset. In operation, initially the transmitter antenna sends a power burst signal for a predetermined duration to charge up the transponder to the maximum charge possible. Then for a very brief duration, the transmitter antenna is damped to permit the receive antennas to better receive the transponder response telegram. Then simultaneously, one receive antenna receives the `X` position component and the other receiver antenna receives the `Y` position component in the form of voltages. Depending upon which quadrant of the antenna pattern the transponder is disposed, the sign and value of the X component and the Y component of voltage is detected. These voltages are then narrow band filtered around a center frequency and gated for a small portion of the length of the entire response telegram, and those outputs are combined in a signal processor which outputs the exact position data information.
摘要翻译： 平衡的接收天线电路配置确定了应答器在读取器天线的天线场模式内的准确位置。 平衡的接收天线配置由相对于彼此物理旋转90度的两个天线组成，彼此同心地设置。 此外，每个接收天线由两个间隔开预定距离的线圈组成。 分离线圈的最佳距离是通过使用应答器检测范围的零位置检测进行退出来确定的。 发射机天线包围接收机线圈组。 在操作中，最初，发射机天线发送功率突发信号达预定的持续时间，以将应答器充电到可能的最大电荷。 然后在非常短暂的持续时间内，发射机天线被衰减以允许接收天线更好地接收应答器响应电报。 然后同时，一个接收天线接收“X”位置分量，另一个接收天线以电压的形式接收“Y”位置分量。 根据发送应答器的天线方向图的哪个象限，检测X分量和电压的Y分量的符号和数值。 然后，这些电压围绕中心频率进行窄带滤波，并选通整个响应报文长度的一小部分，并将这些输出组合在输出精确位置数据信息的信号处理器中。
-
公开(公告)号：US09929790B2
公开(公告)日：2018-03-27
申请号：US15590421
申请日：2017-05-09
申请人： NXP B.V.
发明人： Wim van Houtum , Yan Wu
摘要： A receiver system comprising: an input terminal configured to receive input signalling comprising a plurality of antenna-signals, wherein the plurality of antenna-signals each comprise information that corresponds to a first-frequency-bin and a second-frequency-bin. AoA-blocks can determine a first-angle-of-arrival and a second-angle-of-arrival associated with the first- and second-frequency-bins. A first-weighting-determination-block configured to, based on the first-angle-of-arrival and the second-angle-of-arrival, either: set first-weighting-values as values for constructively combining the information that corresponds to the first-frequency-bins of the plurality of antenna-signals; or set first-weighting-values as values for destructively combining the information that corresponds to the first-frequency-bins of the plurality of antenna-signals.
-
8.发明申请公开(公告)号：US20160282464A1
公开(公告)日：2016-09-29
申请号：US14442658
申请日：2013-09-25
申请人： ROBERT BOSCH GMBH
发明人： Michael SCHOOR , Volker GROSS
CPC分类号： G01S13/931 , G01S3/143 , G01S3/36 , G01S13/4445 , G01S13/4454 , G01S2013/9375 , H01Q21/296
摘要： The present method and system relates to the determination of elevation angles for the case in which more than one target object is situated within a radar cell. Through the estimation according to the present invention of the elevation angles in multi-target scenarios, even in such cases both azimuth angles and elevation angles can be determined, and a reliable classification of the respective target objects can then take place. The present system also relates to a motor vehicle having a radar system that includes an azimuth and elevation angle estimation method and system.
摘要翻译： 本方法和系统涉及对于多于一个目标物体位于雷达电池内的情况的仰角的确定。 通过根据本发明的多目标场景中的仰角的估计，即使在这种情况下，也可以确定方位角和俯仰角，并且可以进行各个目标对象的可靠分类。 本系统还涉及具有雷达系统的机动车辆，其包括方位角和仰角估计方法和系统。
-
公开(公告)号：US07233284B2
公开(公告)日：2007-06-19
申请号：US11288069
申请日：2005-11-22
IPC分类号： G01S5/04
CPC分类号： G01S3/36 , G01S19/015 , G01S19/14 , G01S19/18 , G01S19/21 , H04K3/22 , H04K3/90 , H04K2203/32
摘要： A handheld GPS jammer locator for locating a GPS jamming signal generated by a jammer. The handheld GPS jammer locator has two modes of operation, a amplitude mode and a difference finding mode. The amplitude measures the strength of an incoming GPS jamming signal and the difference finding mode determines the direction of the incoming jamming signal.
摘要翻译： 一种用于定位由干扰器产生的GPS干扰信号的手持式GPS干扰定位器。 手持GPS干扰定位器具有两种操作模式，一种幅度模式和差分寻找模式。 该幅度测量进入的GPS干扰信号的强度，并且差异寻找模式确定输入干扰信号的方向。
-
公开(公告)号：US06759982B2
公开(公告)日：2004-07-06
申请号：US10454257
申请日：2003-06-03
IPC分类号： G01S502
摘要： A detection apparatus is provided to detect the direction of arrival and the position of an emission source of radio wave with high accuracy. The apparatus comprises; a first and a second directional antenna 1 and 10 which rotates with a desired angle of elevation; a first and a second phase integral means 2 and 11 for outputting an integration of the output from an antenna; a first and second phase differential means 3 and 12 for outputting an difference of the outputs from an antenna; a first and a second frequency dividing means 4 and 13 for dividing frequency of the integral component of the output from an antenna; a first and a second differential gain control means 5 and 14 for controlling a gain of the differential component of the output from an antenna; a first and a third receiving means 6 and 15 for receiving an output of the frequency dividing means; a second and a fourth receiving means 8 and 17 for receiving an output of the differential gain control means; a first and a second subtraction means 7 and 16 for subtracting one detection signal output from the other detection signal output of each of receiving means 6 and 8 and receiving means 15 and 17; a first and a second calculation means 9 and 18 for determining a direction of arrival of radio wave based on an output from the subtraction means; and a position determining calculation means 19 for determining the position of the emission source of the radio wave based on an output from the calculation means.
摘要翻译： 提供一种检测装置，以高精度检测无线电波的到达方向和位置。 该装置包括： 以期望的仰角旋转的第一和第二定向天线1和10; 用于输出来自天线的输出的积分的第一和第二相位积分装置2和11; 用于输出来自天线的输出的差的第一和第二相位差分装置3和12; 第一和第二分频装置4和13，用于分频来自天线的输出的积分分量的频率; 用于控制来自天线的输出的差分分量的增益的第一和第二差分增益控制装置5和14; 第一和第三接收装置6和15，用于接收分频装置的输出; 第二和第四接收装置8和17，用于接收差分增益控制装置的输出; 第一和第二减法装置7和16，用于减去从接收装置6和8以及接收装置15和17中的每一个的另一个检测信号输出输出的一个检测信号; 用于基于来自减法装置的输出确定无线电波的到达方向的第一和第二计算装置9和18; 以及基于来自计算装置的输出来确定无线电波的发射源的位置的位置确定计算装置19。
-
-
-
-
-
-
-
-
-
搜索结果
27 条记录 (耗时 0.015 秒)
