defsources_s.m

Matlab雷达工具箱

function [sys,x0,str,ts] = defsources_s(t,x,u,flag)
%
%   The general form of an M-File S-function syntax is:
%       [SYS,X0,STR,TS] = SFUNC(T,X,U,FLAG,P1,...,Pn)
%
%   Optional parameters, P1,...,Pn can be provided to the S-function and
%   used during any FLAG operation.

switch flag,

  case 0,
    [sys,x0,str,ts]=mdlInitializeSizes;

  case { 1, 2, 4, 9 }
    sys=[];		% Unused flags

  case 3,
    sys=mdlOutputs(t,x,u);

  otherwise
    error(['Unhandled flag = ',num2str(flag)]);

end

%
%=============================================================================
% mdlInitializeSizes
% Return the sizes, initial conditions, and sample times for the S-function.
%=============================================================================
%
function [sys,x0,str,ts]=mdlInitializeSizes

% call simsizes for a sizes structure, fill it in and convert it to a
% sizes array.

sizes = simsizes;

sizes.NumContStates  = 0;
sizes.NumDiscStates  = 0;
sizes.NumOutputs     = 1;
sizes.NumInputs      =-1;
sizes.DirFeedthrough = 1;
sizes.NumSampleTimes = 1;   % at least one sample time is needed

sys = simsizes(sizes);

x0  = [];		% No continuous states
str = []; 	% str is always an empty matrix, reserved for future use by Simulink
ts  = [0 0];	% initialize the array of sample times

% end mdlInitializeSizes

%=============================================================================
% mdlOutputs
% Return the block outputs.
%=============================================================================
function sys=mdlOutputs(t,x,u)

% The complete subsystem block should have 3 input ports.
% The input port vector contains references to the 3 variables that 
% contains the Target(s), Noise, and Clutter Definitions.
  
  getinvar
  for i=1:length(u)
     eval(['tmpVar = inVar',num2str(i),';']);
     inVarCell{i}=tmpVar;
     eval('clear tmpVar');
  end;
  outVar1 = defsources(inVarCell);
  eval(['clear inVarCell'])
  putoutvarclear
  
  %getinvar3
  %outVar1 = defsources({inVar1,inVar2,inVar3});
    % Calculate the DOA spectrum by a DBT function.
  %putoutvarclear3
    % Clear the variable "inVar1", "inVar2", inVar3" and puts the
    % output variable "outVar1"
    % to the next Simulink block.

% end mdlOutputs