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    • 9. 发明申请
    • APPARATUS AND METHOD FOR COMPENSATING FOR RECEIVER MOTION IN AIRBORNE ELECTROMAGNETIC SYSTEMS
    • 航空电磁系统接收器运动补偿装置及方法
    • WO2016124964A1
    • 2016-08-11
    • PCT/IB2015/002482
    • 2015-12-16
    • CGG SERVICES SA
    • SMIAROWSKI, AdamMILES, Philip
    • G01V3/16G01V3/165
    • G01V3/16G01R33/0029G01V3/165G01V3/17
    • A computing device and method for removing noise associated with an excitation signal and its odd harmonics. A computing system (1200) for processing electromagnetic (EM) signals includes an interface (1208) that receives (1100) raw data indicative of a time rate of change of a magnetic field as recorded with a receiver coil while airborne, wherein the magnetic field includes a primary source excitation; and a processor (1202) connected to the interface. The processor is configured to calculate (1102) a rotation of the receiver coil relative to a desired orientation; derotate (1104) the raw EM data based on the rotation of the receiver coil relative to the desired orientation and on the primary source excitation, to obtain derotated EM data; and generate (1106) an image of a surveyed subsurface based on the derotated EM data.
    • 一种用于消除与激励信号及其奇次谐波相关的噪声的计算装置和方法。 一种用于处理电磁(EM)信号的计算系统(1200)包括一接口(1208),该接口(1208)接收(1100)原始数据,该原始数据指示在机载时记录有接收线圈的磁场的时间变化率,其中, 包括主源激励; 以及连接到所述接口的处理器(1202)。 处理器被配置为相对于期望的取向计算(1102)接收器线圈的旋转; 基于接收器线圈相对于期望取向和主源极激发的旋转,原始EM数据解旋(1104),以获得解旋的EM数据; 并且基于所述解旋的EM数据生成(1106)被测地下的图像。