xdc_apodization.m

FIELD II 是B超的matlab仿真程序。 执行 先运行 field_init.m

%  Procedure for creating an apodization time line for an aperture
%
%  Calling:  xdc_apodization (Th, times, values); 
%
%  Parameters:  Th     - Pointer to the transducer aperture.  
%               times  - Time after which the associated apodization is valid. 
%               values - Apodization values. Matrix with one row for each
%                        time value and a number of columns equal to the 
%                        number of physical elements in the aperture. 
%
%  Return:      none.
%
%  Version 1.01, June 19, 1998 by Joergen Arendt Jensen

function res = xdc_apodization (Th,times,values)

%  Check the times vector

  [m1,n]=size(times);
  if (n ~= 1) 
    error ('Times vector must have one column');
    end

  [m2,n]=size(values);

%  Check both arrays

  if (m1 ~= m2)
    error ('There must be the same number of rows for times and values');
    end

%  Call the C-part of the program to insert apodization

   Mat_field (1070,Th,times,values);