Method and device for high-resolution imaging of test objects by electromagnetic waves, in particular for monitoring people for suspicious items
    1.
    发明授权
    Method and device for high-resolution imaging of test objects by electromagnetic waves, in particular for monitoring people for suspicious items 有权
    用于通过电磁波对测试对象进行高分辨率成像的方法和装置,特别是用于监视人们的可疑物品

    公开(公告)号:US07710307B2

    公开(公告)日:2010-05-04

    申请号:US12192096

    申请日:2008-08-14

    IPC分类号: G01S13/90

    摘要: In order to image test objects by electromagnetic waves, in particular millimetric waves, a test object is illuminated with the electromagnetic waves, the scattered waves are received, and are evaluated for a representation of the test object in the form of an image based on the principle of “synthetic aperture radar” (SAR). In order to allow as large an area as possible to be imaged with high resolution in a short time, the phase centres of the transmitting and receiving antennas are, according to the invention, moved on a circular path parallel to the respective digital focus planes of the imaging system, and are at the same time shifted linearly in a further direction parallel to the respective focus plane. The method can be used for monitoring people for suspicious objects, for example for monitoring airline passengers at an airport.

    摘要翻译: 为了通过电磁波(特别是毫米波)对测试对象进行成像,用电磁波照射测试对象,接收散射波,并以基于图像的形式的测试对象的表示进行评估 “合成孔径雷达”(SAR)原理。 为了允许尽可能大的面积在短时间内以高分辨率成像,根据本发明,发射和接收天线的相位中心在平行于各个数字对焦平面的圆形路径上移动 成像系统,并且同时在平行于各个聚焦平面的另外方向线性地移动。 该方法可用于监测人们的可疑物体,例如监视机场的航空公司乘客。

    METHOD AND DEVICE FOR HIGH-RESOLUTION IMAGING OF TEST OBJECTS BY ELECTROMAGNETIC WAVES, IN PARTICULAR FOR MONITORING PEOPLE FOR SUSPICIOUS ITEMS
    3.
    发明申请
    METHOD AND DEVICE FOR HIGH-RESOLUTION IMAGING OF TEST OBJECTS BY ELECTROMAGNETIC WAVES, IN PARTICULAR FOR MONITORING PEOPLE FOR SUSPICIOUS ITEMS 有权
    用于通过电磁波对测试对象进行高分辨率成像的方法和装置,特别是用于监测人体的可疑物品

    公开(公告)号:US20090051586A1

    公开(公告)日:2009-02-26

    申请号:US12192096

    申请日:2008-08-14

    IPC分类号: G01S13/90

    摘要: In order to image test objects by electromagnetic waves, in particular millimetric waves, a test object is illuminated with the electromagnetic waves, the scattered waves are received, and are evaluated for a representation of the test object in the form of an image based on the principle of “synthetic aperture radar” (SAR). In order to allow as large an area as possible to be imaged with high resolution in a short time, the phase centres of the transmitting and receiving antennas are, according to the invention, moved on a circular path parallel to the respective digital focus planes of the imaging system, and are at the same time shifted linearly in a further direction parallel to the respective focus plane. The method can be used for monitoring people for suspicious objects, for example for monitoring airline passengers at an airport.

    摘要翻译: 为了通过电磁波(特别是毫米波)对测试对象进行成像,用电磁波照射测试对象,接收散射波,并以基于图像的形式的测试对象的表示进行评估 “合成孔径雷达”(SAR)原理。 为了允许尽可能大的面积在短时间内以高分辨率成像,根据本发明,发射和接收天线的相位中心在平行于各个数字对焦平面的圆形路径上移动 成像系统,并且同时在平行于各个聚焦平面的另外方向线性地移动。 该方法可用于监测人们的可疑物体,例如监视机场的航空公司乘客。

    DEVICE AND METHOD FOR THE IMPROVED DIRECTIONAL ESTIMATION AND DECODING BY MEANS OF SECONDARY RADAR SIGNALS
    4.
    发明申请
    DEVICE AND METHOD FOR THE IMPROVED DIRECTIONAL ESTIMATION AND DECODING BY MEANS OF SECONDARY RADAR SIGNALS 有权
    通过二次雷达信号改进方向估计和解码的设备和方法

    公开(公告)号:US20110001659A1

    公开(公告)日:2011-01-06

    申请号:US12918836

    申请日:2009-02-25

    CPC分类号: G01S13/781 G01S3/74

    摘要: 1. A device and a method for the improved directional estimation and decoding by means of secondary radar signals. 2.1 Radio-based positioning systems on the basis of secondary radar signals are known. For this purpose special receiver systems are utilized for estimating the direction, and special receiver systems are utilized for decoding secondary radar signals. In particular, a secondary radar system is absent, which, among others, takes into consideration any shortcomings of the hardware used, such as coupled antenna elements, different low-end impedances, deviating distances between the antenna elements, manufacturing and installation tolerances, and the like. 2.2 The device for directional estimation and/or decoding secondary radar signals according to the invention comprises the following: —at least one array A comprising M antenna elements AE—an amplifier LNA and bandpass filter F1 combination connected to a plug-in connector S of the respective antenna element AE, at the filter output of said combination a first linear amplifier V1 being connected for amplifying the band-limited signal, —a mixer M connected to the first linear amplifier V1 for the frequency conversion into a ZF region, —a second linear amplifier V2 and bandpass filter F2 combination connected to the mixer output for amplifying and limiting the bandwidth of the signal in the ZF region, —a first analog-to-digital converter AD1 connected to the second bandpass filter F2 for scanning and quantifying the filter output signal, —a configurable signal processor FPGA/DSP connected to the first analog-to-digital converter AD1, said processor being connected to a PLL-VCO circuit for controlling the mixer frequency and receiving the data for processing, and—a

    摘要翻译: 1.一种通过二次雷达信号改进方向估计和解码的装置和方法。 2.1基于二次雷达信号的无线电定位系统是已知的。 为此,特殊的接收机系统用于估计方向,特殊的接收机系统用于解码次级雷达信号。 特别地,不存在二次雷达系统,其中考虑到所使用的硬件的任何缺点,例如耦合的天线元件,不同的低端阻抗,天线元件之间的偏离距离,制造和安装公差以及 类似。 2.2根据本发明的用于方向估计和/或解码次级雷达信号的装置包括以下: - 包括M个天线元件AE的至少一个阵列A - 连接到插入式连接器S的放大器LNA和带通滤波器F1组合 相应的天线元件AE在所述组合的滤波器输出处连接用于放大带限信号的第一线性放大器V1,连接到用于频率转换为ZF区域的第一线性放大器V1的混频器M,a 连接到混频器输出的第二线性放大器V2和带通滤波器F2组合,用于放大和限制ZF区域中的信号的带宽, - 连接到第二带通滤波器F2的第一模数转换器AD1,用于扫描和量化 滤波器输出信号, - 可配置信号处理器FPGA / DSP连接到第一模数转换器AD1,所述处理器连接到PLL-VC O电路,用于控制混频器频率并接收数据进行处理,以及-a

    Method and device for determining a distance to a target object
    5.
    发明申请
    Method and device for determining a distance to a target object 有权
    用于确定到目标​​物体的距离的方法和装置

    公开(公告)号:US20100007548A1

    公开(公告)日:2010-01-14

    申请号:US11919555

    申请日:2006-04-27

    IPC分类号: G01S13/36

    CPC分类号: G01S13/36 G01S13/931

    摘要: The invention relates to a method for determining a distance (r) to a target object (200) consisting in transmitting electromagnetic waves in the form of a transmission signal (120a) by a transmitter (111a), receiving at least one part of said transmission signal (120a) reflected by a the target object (200) in the form of a reception signal (120c, 120d) by receiving device (111b) and evaluating the reception signal (120c, 120d) according a reference signal (1230b) which has a known phase difference with respect to the transmission signal (120a) and a frequency equal to the frequency thereof. The reference (120) and reception (120c, 120d) signal frequencies are reduced in a frequency divider (113) with the same predefined divider factor (x) while preserving the existing phase difference between the reference signal (120b) and the reception (120c, 120d) signal in such a way that a reduced frequency reception signal (120b′) and a reduced frequency reception signal (120d) are obtained. The frequency difference between the reduced frequency reception signal (120b′) and reduced frequency reception signal (120d′) is evaluated in order to determine the distance (R).

    摘要翻译: 本发明涉及一种用于确定与目标物体(200)的距离(r)的方法,该目标物体(200)包括以发射机(111a)的传输信号(120a)的形式传送电磁波,接收所述传输的至少一部分 信号(120a)以由接收装置(111b)的接收信号(120c,120d)的形式被目标对象(200)反射并根据参考信号(1230b)评估接收信号(120c,120d) 相对于发送信号(120a)的已知相位差和等于其频率的频率。 参考信号(120)和接收(120c,120d)信号频率在具有相同预定分频因子(x)的分频器(113)中减小,同时保持参考信号(120b)和接收(120c)之间的现有相位差 ,120d)信号,从而获得降频接收信号(120b')和降频接收信号(120d)。 对减小频率接收信号(120b')和降频接收信号(120d')之间的频率差进行评估,以确定距离(R)。

    Device and method for the improved directional estimation and decoding by means of secondary radar signals
    6.
    发明授权
    Device and method for the improved directional estimation and decoding by means of secondary radar signals 有权
    通过二次雷达信号改进方向估计和解码的装置和方法

    公开(公告)号:US08253622B2

    公开(公告)日:2012-08-28

    申请号:US12918836

    申请日:2009-02-25

    IPC分类号: G01S13/00

    CPC分类号: G01S13/781 G01S3/74

    摘要: A device and a method for the improved directional estimation and decoding by means of secondary radar signals. The device includes: at least one array of antenna elements; a low noise first amplifier and bandpass filter combination connected to a plug-in connector S of the respective antenna elements; a first linear amplifier being connected at a filter output of said combination for amplifying the band-limited signal; a mixer connected to the first linear amplifier for the frequency conversion into a ZF region; a second linear amplifier and bandpass filter combination connected to the mixer output for amplifying and limiting the bandwidth of the signal in the ZF region; a first analog-to-digital converter connected to the second bandpass filter; a configurable signal processor connected to the first analog-to-digital converter; and a processing unit connected to the configurable signal processors.

    摘要翻译: 一种通过二次雷达信号改进方向估计和解码的装置和方法。 该装置包括:至少一个天线元件阵列; 连接到相应天线元件的插入式连接器S的低噪声第一放大器和带通滤波器组合; 第一线性放大器连接在所述组合的滤波器输出端,用于放大带限信号; 连接到第一线性放大器的混频器用于频率转换成ZF区域; 连接到混频器输出的第二线性放大器和带通滤波器组合,用于放大和限制ZF区域中的信号的带宽; 连接到所述第二带通滤波器的第一模数转换器; 连接到第一模数转换器的可配置信号处理器; 以及连接到可配置信号处理器的处理单元。

    Method and device for determining a distance to a target object
    7.
    发明授权
    Method and device for determining a distance to a target object 有权
    用于确定到目标​​物体的距离的方法和装置

    公开(公告)号:US08174434B2

    公开(公告)日:2012-05-08

    申请号:US11919555

    申请日:2006-04-27

    IPC分类号: G01S13/36 G01S13/00

    CPC分类号: G01S13/36 G01S13/931

    摘要: An apparatus and a method for determining a distance (r) to a target object (200) proposes transmitting electromagnetic waves in the form of a transmission signal (120a) by a transmitter (111a), receiving at least one part of said transmission signal (120a) reflected by a the target object (200) in the form of a reception signal (120c, 120d) by receiving device (111b) and evaluating the reception signal (120c, 120d) according a reference signal (1230b) which has a known phase difference with respect to the transmission signal (120a) and a frequency equal to the frequency thereof. The reference (120) and reception (120c, 120d) signal frequencies are reduced in a frequency divider (113) with the same predefined divider factor (x) while preserving the existing phase difference between the reference signal (120b) and the reception (120c, 120d) signal in such a way that a reduced frequency reception signal (120b′) and a reduced frequency reception signal (120d) are obtained. The frequency difference between the reduced frequency reception signal (120b′) and reduced frequency reception signal (120d′) is evaluated in order to determine the distance (R).

    摘要翻译: 用于确定与目标对象(200)的距离(r)的装置和方法提出了通过发射机(111a)以传输信号(120a)的形式发送电磁波,接收所述传输信号的至少一部分( 120a),由接收装置(111b)以接收信号(120c,120d)的形式由目标物体(200)反射,并根据已知的参考信号(1230b)对接收信号(120c,120d)进行评估 相对于发送信号(120a)的相位差和与其频率相等的频率。 参考信号(120)和接收(120c,120d)信号频率在具有相同预定分频因子(x)的分频器(113)中减小,同时保持参考信号(120b)和接收(120c)之间的现有相位差 ,120d)信号,从而获得降频接收信号(120b')和降频接收信号(120d)。 对减小频率接收信号(120b')和降频接收信号(120d')之间的频率差进行评估,以确定距离(R)。