Wave Interactions and Imaging in Random Inhomogeneous Media

电磁波和声波通过大气、海洋、地球物理介质或生物介质进行的通信和成像往往受到介质随机时空变化的严重影响。尽管在波与这种随机介质的相互作用方面已经取得了相当大的进展，但一些基本问题仍然没有解决，阻碍了几个重要应用领域的进展。这些问题的理论公式通常很复杂，涉及各种假设和近似，其有效性范围难以确定。研究人员正在使用分析和实验两种方法来解决这些问题。对实验进行了仔细的控制，以便结果可以与理论预测进行比较，并通过数值计算进行扩展。这些研究结果可用于大气光学、海洋声学、地球物理遥感、雷达、激光雷达、超声成像和随机非均匀介质的光学逆散射等领域。

Communication and imaging through the atmosphere, the ocean, the geophysical medium, or the biological medium by electromagnetic and acoustic waves are often severely affected by the random spatial and temporal variations of the medium. Although considerable progress has been reported on the interactions of waves with such random media, some fundamental questions are still not resolved, impeding progress in several important areas of application. Theoretical formulations for these problems are often complex, involving various assumptions and approximations, and their range of validity is difficult to determine. The researchers are attacking these problems using both analytical and experimental methods. The experiments are carefully controlled so that the results can be compared with theoretical predictions and extended by numerical computations. The results of these studies may be useful in various applications including atmospheric optics, ocean acoustics, geophysical remote-sensing, radars, lidars, ultrasound imaging, and optical inverse scattering of random inhomogeneous media.