gusucode.com > 信号处理工具箱 - signal源码程序 > signal\signal\signal\is2rc.m
function k = is2rc(inv_sin) %IS2RC Convert inverse sine parameters to reflection coefficients. % K = IS2RC(INV_SIN) returns the reflection coefficients corresponding % to the inverse sine parameters, INV_SIN. % % See also RC2IS, POLY2RC, AC2RC, LAR2RC. % Reference: J.R. Deller, J.G. Proakis, J.H.L. Hansen, "Discrete-Time % Processing of Speech Signals", Prentice Hall, Section 7.4.5. % % Author(s): A. Ramasubramanian % Copyright (c) 1988-98 by The MathWorks, Inc. % $Revision: 1.1 $ $Date: 1998/07/24 16:12:13 $ if ~isreal(inv_sin), error('Inverse sine parameters must be real.'); end k = sin(inv_sin*pi/2); % [EOF] is2rc.m