www.gusucode.com > robust 案例源码程序 matlab代码 > robust/LoopShapingWithNcfsynExample.m
%% Loop Shaping With ncfsyn % The following code shows how |ncfsyn| can be used for loop-shaping. % Copyright 2015 The MathWorks, Inc. s = zpk('s'); G = (s-1)/(s+1)^2; W1 = 0.5/s; [K,CL,GAM] = ncfsyn(G,W1); sigma(G*K,'r',G*W1,'r-.',G*W1*GAM,'k-.',G*W1/GAM,'k-.') %% % The % singular value plot of the achieved loop |G*K| is equal to that of % the target loop |G*W1| to within plus or minus |GAM| (in dB).