On a numerical truncation approximation algorithm for transfer matrix method

A numerical truncation technique is described for reducing the numerical in stability problems associated with the utilization of the transfer matrix m ethod, especially in cases where the frequency of ultrasound, the number of layers, or the thickness of the layers become very large. This rather simp listic modification to the numerical coding extends the transfer matrix met hod to a wide range of applications, without any complex and computationall y intensive reformulation. (C) 2000 Acoustical Society of America. [S0001-4 966(00)04102-3].