todb.m

离散控制系统设计的MATLAB 代码

function mag_db=todb(mag)
% TODB: Function for decibel conversion 

%%%%%%%%%%%%%%%%%%%% todb.m %%%%%%%%%%%%%%%%%%%%%
%   Discrete-Time Control Problems using        %
%       MATLAB and the Control System Toolbox   %
%   by J.H. Chow, D.K. Frederick, & N.W. Chbat  %
%         Brooks/Cole Publishing Company        %
%                September 2002                 %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

mag_db=20*log10(mag);
%%%%%%%%%