运行速度快、价格低廉的个人电脑(PC)的出现使现代地震深度成像技术发生了深刻的变革。巨型计算机、图形显示器以及数据存储器的价格每18个月就要下降一半。 以现代网络技术结合价格低廉的PC形成功能强大的机群,就能轻松解决过去在昂贵的设备上也难以解决的问题。现在利用精确但计算量极大的算法来对地下地质体进行成像已经成为可行,由此生成的图像其质量远胜于目前用基尔霍夫技术产生的图像。图形能力为改进 The advent of faster, less expensive personal computers (PC) has revolutionized modern seismic depth imaging. The prices of giant computers, graphics displays and data storage have dropped by half in 18 months. Using modern networking technologies combined with inexpensive PCs to form powerful clusters can easily solve problems that have traditionally been difficult to solve on expensive devices. Now that it has become feasible to image subterranean geologic bodies with accurate but computationally intensive algorithms, the resulting image is far superior in quality to what is currently available with Kirchhoff’s technique. Graphics ability to improve