SPECIAL TOPICS:An efficient method for solving sound propagation in range-dependent ocean waveguides was found by researchers from Chinese Academy of Sciences

The coupled normal mode method is a powerful approach for solving range-dependent propagation problems in underwater acoustics. An important area of study is to improve stability and efficiency

The coupled normal mode method is a powerful approach for solving range-dependent propagation problems in underwater acoustics. An important area of study is to improve stability and efficiency so as to be able to deal with complex scenarios in a realistic environment. Professor Luo Wenyu and his group from the State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, set out to tackle this problem. After several years of innovative research, they have developed an accurate, efficient, and numerically stable coupled normal mode method to solve the range-dependent propagation problem. Their work, entitled “A numerically stable coupled-mode formulation for acoustic propagation in range-dependent waveguides”, was published in Science China Physics, Mechanics ＆ Astronomy, 2012, Vol. 55 （4）.