Description of qp_ca_sl

qp_ca_sl

PURPOSE

Wrapper used in the QP control allocation Simulink block.

SYNOPSIS

function u = qp_ca_sl(arg,B,plim,rlim,T,Wv,Wu,ud,alg,imax,gam,tol)

DESCRIPTION

 Wrapper used in the QP control allocation Simulink block.

CROSS-REFERENCE INFORMATION

This function calls:

• cgi_alloc CGI_ALLOC - Control allocation based on cascading generalized inverses.
• fxp_alloc FXP_ALLOC - Control allocation using a fixed-point iterations.
• ip_alloc IP_ALLOC - Control allocation using interior point method.
• mls_alloc MLS_ALLOC - Control allocation using minimal least squares.
• sls_alloc SLS_ALLOC - Control allocation using sequential least squares.
• wls_alloc WLS_ALLOC - Control allocation using weighted least squares.
• wlsc_alloc WLSC_ALLOC - C implementation of WLS_ALLOC.

This function is called by:

SOURCE CODE

0001 function u = qp_ca_sl(arg,B,plim,rlim,T,Wv,Wu,ud,alg,imax,gam,tol)
0002   
0003 % Wrapper used in the QP control allocation Simulink block.
0004   
0005 % Dimensions
0006   [k,m] = size(B);
0007   
0008   % Extract nonconstant input arguments
0009   v = arg(1:k);
0010   uprev = arg(k+1:end);
0011   
0012   % Overall position limits
0013   if isempty(rlim)
0014     umin = plim(:,1);
0015     umax = plim(:,2);
0016   else
0017     umin = max(plim(:,1),uprev+rlim(:,1)*T);
0018     umax = min(plim(:,2),uprev+rlim(:,2)*T);
0019   end
0020   u0 = mean([umin umax]')';
0021   W0 = zeros(m,1);
0022   
0023   switch lower(alg)
0024    case 'sls'
0025     u = sls_alloc(B+j,v,umin,umax,Wv,Wu,ud,u0,W0,imax);
0026    case 'mls'
0027     u =    mls_alloc(B,v,umin,umax,Wv,Wu,ud,u0,W0,imax);
0028    case 'wls'
0029     u = wls_alloc(B,v,umin,umax,Wv,Wu,ud,gam,u0,W0,imax);
0030    case 'wlsc'
0031     u = wlsc_alloc(B,v,umin,umax,Wv,Wu,ud,gam,u0,W0,imax);
0032    case 'ip'
0033     u = ip_alloc(B,v,umin,umax,ud,gam,tol,imax);
0034    case 'fxp'
0035     u = fxp_alloc(B,v,umin,umax,Wv,Wu,ud,gam,u0,imax);
0036    case 'cgi'
0037     u = cgi_alloc(B,v,umin,umax,Wv,Wu,ud);
0038   end

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