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    • 77. 发明公开
    • Non-contact type wave signal observation apparatus
    • 非接触式波信号观测装置
    • EP0977052A2
    • 2000-02-02
    • EP99203842.2
    • 1995-01-12
    • Advantest Corporation
    • Kitayoshi, Hitoshi
    • G01S13/89G01S7/02G01R31/312G01R29/08
    • G01R29/08G01R29/0892G01R31/312G01S7/02G01S7/024G01S7/062G01S7/068G01S7/20G01S7/2955G01S13/87G01S13/89G01S15/89
    • Non-contact type wave signal observation apparatus takes measurements of electromagnetic waves received on an observation plane and performs hologram reconstruction calculations to reconstruct characteristics of the corresponding electromagnetic wave information at points in the observed space. The invention provides apparatus for analysis of spatial electromagnetic waves so as to determine properties such as those related to polarization of the radiation, one or more pairs of mutually orthogonal antennas having figure-of-eight beam patterns are used in the observation plane. A display for displaying complex three-dimensional data such as interference data of electromagnetic waves may be used to display data produced by the apparatus according to the invention. The complex data is converted from orthogonal co-ordinates to polar co-ordinates, the phase information is converted to hue information in a hue converter and the amplitude information is used to modulate the brightness of the displayed signal; corresponding colour signals are displayed on a colour display unit.
    • 非接触型波信号观测设备对在观测平面上接收到的电磁波进行测量,并执行全息图重构计算,以重建观测空间中的点处的相应电磁波信息的特性。 本发明提供了用于分析空间电磁波以便确定诸如与辐射的极化有关的属性的装置,在观察平面中使用了具有八字形波束图案的一对或多对相互正交的天线。 用于显示诸如电磁波的干涉数据的复杂三维数据的显示器可以用于显示由根据本发明的设备产生的数据。 复数数据由正交坐标转换为极坐标,相位信息在色调转换器中转换为色调信息,幅度信息用于调制显示信号的亮度; 相应的颜色信号显示在彩色显示单元上。