King Fahd University of Petroleum & Minerals DEPARTMENT OF MATHEMATICAL SCIENCES Technical Report Series TR 272 January 2002 An Inversion Procedure for the Recovery of Propogation Speed and Damping of the Medium F.D. Zaman, Khalid Masood DHAHRAN 31261 ● SAUDI ARABIA ● www.kfupm.edu.sa/math/ ● E-mail: mathdept@kfupm.edu.sa