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在简述了全息成象的一般原理,并讨论了全息成象应用于钻孔电波勘探的物理基础之后,着重介绍了多重全息图的概念及其合成成象技术.指明了对钻孔电波勘探的多次定点观测曲线和多次同步观测曲线,可利用多重全息图及合成成象技术进行联合处理,以提高分辨力和成象质量.并证明这相当于接收天线阵和发射天线阵依次聚焦在每一成象点上的双聚焦扫描成象的过程.文中对双孔透射法和单孔反射法都进行了讨论,并给出了相应的计算公式;然后讨论了资料处理中的几个问题,如发射点象的干扰及其消除、透射全息的屏蔽区问题、水平同步成象时的双象问题等,并同时介绍了用衍射点模型进行计算机模拟的结果。最后给出了对水槽模型试验资料的处理结果和野外资料的试算结果.
After introducing the general principle of holographic imaging and discussing the physical basis of holographic imaging applied to borehole wave exploration, the concept of multi-hologram and its synthetic imaging technology are emphatically introduced. Of the multiple point observation curve and multiple simultaneous observation curve can be used multiple holograms and synthetic imaging techniques for joint processing to improve the resolution and imaging quality and prove that the equivalent of the receiving antenna array and the transmitting antenna array in turn focus At each imaging point, the process of dual-focus scanning imaging is discussed. Both the two-hole transmission method and the single-hole reflection method are discussed and the corresponding calculation formulas are given. Then, several data processing Problems such as the interference of the emission point image and its elimination, the shielding area of the transmission holography, the double-image problem of the horizontal synchronization imaging and the result of the computer simulation by using the diffraction point model. Finally, the experimental results of sink model test data and the trial results of field data are given.