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    • 4. 发明申请
    • Detection device
    • 检测装置
    • US20050274890A1
    • 2005-12-15
    • US10524596
    • 2003-08-21
    • Rupert AndertonPaul ManningKevin Palmer
    • Rupert AndertonPaul ManningKevin Palmer
    • G01V3/12G01J5/00G01J5/48G01V8/00G01C3/08G01S13/00G02B26/10H01L25/00
    • G01V8/005
    • A detection device that can be used for detecting objects behind clothing etc including a dielectric lens and a receive element sensitive to millimetre wave radiation. Prior art systems produce an image of a scene usually using scanning optics. This can be large and expensive. The present invention instead take spot readings from different parts of a scene without building up an image. The spot readings are processed, and an indication given to a user if certain characteristics of the readings are observed. Typical characteristics used are the differences in absolute received power level, and the power level at different polarisations. Such characteristics are typically present is an object of interest is in the scene. Also disclosed are various methods of altering the received beam to get readings from different areas from the scene, such as changing the beam width, or beam angle.
    • 一种检测装置,其可用于检测服装等后面的物体,包括介电透镜和对毫米波辐射敏感的接收元件。 现有技术的系统通常使用扫描光学器件产生场景的图像。 这可能是大而昂贵的。 本发明改为从场景的不同部分进行斑点读取而不建立图像。 处理斑点读数,并且如果观察到读数的某些特征,则给予用户指示。 使用的典型特征是绝对接收功率水平的差异和不同极化处的功率水平。 这种特征通常存在是感兴趣的对象在场景中。 还公开了改变接收光束以从场景的不同区域读取数据的各种方法,例如改变光束宽度或光束角度。