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    • 7. 发明授权
    • Method and apparatus for using non-linear ground penetrating radar to detect objects located in the ground
    • 使用非线性地面穿透雷达来检测位于地面的物体的方法和装置
    • US08289201B2
    • 2012-10-16
    • US11758785
    • 2007-06-06
    • Sandor HollyNicholas KoumvakalisRobert Alan Smith
    • Sandor HollyNicholas KoumvakalisRobert Alan Smith
    • G01S13/04G01V3/12G01S13/00G01V3/00
    • G01S13/885F41H11/136G01S7/41G01V3/17
    • A method and apparatus for detecting objects located underground. In one advantageous embodiment, a detection system detects objects having electrical non-linear characteristics located underground. The detection system comprises a transmitter unit, a receiver, and a processor. The transmitter transmits a plurality of pulsed radio frequency signals having a first frequency and a second frequency into a ground. The receiver monitors for a response radio frequency signal having a frequency equal to a difference between the first frequency and a second frequency, wherein the response radio frequency signal is generated by an object having the non-linear conductive characteristics in response to receiving the plurality of electromagnetic signals. The processor is connected to the transmitter unit and the receiver, wherein the processor controls an operation of the transmitter unit and the receiver, wherein the object is detected when the response radio frequency signal is detected by the receiver.
    • 一种用于检测位于地下的物体的方法和装置。 在一个有利的实施例中,检测系统检测具有位于地下的电气非线性特性的物体。 检测系统包括发射器单元,接收器和处理器。 发射机将具有第一频率和第二频率的多个脉冲射频信号发射到地面中。 接收机监视具有等于第一频率和第二频率之间的差的频率的响应射频信号,其中响应于具有非线性导电特性的对象响应于接收到多个 电磁信号。 处理器连接到发射机单元和接收机,其中处理器控制发射机单元和接收机的操作,其中当接收机检测到响应射频信号时检测对象。
    • 9. 发明授权
    • Method and apparatus for detecting, locating, and identifying microwave transmitters and receivers at distant locations
    • 用于在远处的位置检测,定位和识别微波发射器和接收器的方法和装置
    • US07142147B2
    • 2006-11-28
    • US10994811
    • 2004-11-22
    • Sandor Holly
    • Sandor Holly
    • G01S7/38
    • G01S13/74G01S7/021G01S13/04G01S13/42G01S13/46G01V8/005
    • Methods and apparatuses for detecting, locating, and identifying microwave transmitters and receivers at distant locations are disclosed. First and second electromagnetic beams at first and second frequencies, respectively, are transmitted in first and second directions. The second frequency is offset from the first frequency to define an interference difference frequency. As such, the first and second electromagnetic beams interfere at a far field distance corresponding to an intersection of the first and second electromagnetic beams. In the far field the beams interfere with microwave devices that reradiate a return radiation at the difference frequency. The methods and apparatuses detect the return radiation at the difference frequency, such as by way of a receiver, and locate the interference zone to determine the location of the microwave device, such as by a processor.
    • 公开了用于在远处位置检测,定位和识别微波发射器和接收器的方法和装置。 分别在第一和第二频率的第一和第二电磁波在第一和第二方向上传送。 第二频率与第一频率偏移以限定干扰差频率。 这样,第一和第二电磁波束在对应于第一和第二电磁波束的相交处的远场距离处干扰。 在远场中,光束干扰以不同频率重新辐射返回辐射的微波装置。 方法和装置例如通过接收机检测差分频率处的返回辐射,并定位干扰区以确定微波设备的位置,例如由处理器。
    • 10. 发明申请
    • FOCAL PLANE ARRAY FOR THZ IMAGER AND ASSOCIATED METHODS
    • 用于THZ图像和相关方法的FOCAL PLANE ARRAY
    • US20050179606A1
    • 2005-08-18
    • US10780535
    • 2004-02-16
    • Sandor Holly
    • Sandor Holly
    • H01Q1/24H01Q15/00H01Q19/06H01Q21/29H01Q21/30
    • H01Q19/062H01Q1/248H01Q15/002H01Q21/29H01Q21/30
    • A high-frequency imaging system for the millimeter and submillimeter radiation includes a high frequency lens to image an object at its focal plane. The object emits electromagnetic radiation at a first frequency above the microwave band of the electromagnetic spectrum. A local oscillator generates an electromagnetic beam at a second frequency to illuminate a plurality of dual-frequency antennas at the focal plane of the lens. Intermodulation of first and second frequencies generates a signal distribution of a third frequency over the focal plane, which represents an image. Also, a method of providing an image at the third frequency of an object emitting electromagnetic radiation at a first frequency is provided. The method includes imaging the electromagnetic radiation at the first frequency from each point of the object onto the focal plane. An electromagnetic beam is transmitted to illuminate all elements of the focal plane array.
    • 用于毫米和亚毫米辐射的高频成像系统包括在其焦平面上对物体进行成像的高频透镜。 物体以高于电磁光谱的微波带的第一频率发射电磁辐射。 本地振荡器以第二频率产生电磁波束,以照射透镜焦平面处的多个双频天线。 第一和第二频率的互调产生表示图像的焦平面上的第三频率的信号分布。 此外,提供了以第一频率提供发射电磁辐射的物体的第三频率处的图像的方法。 该方法包括将来自物体的每个点的第一频率的电磁辐射成像到焦平面上。 传输电磁波束照射焦平面阵列的所有元件。