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% init_GUP.m: Main program to find lag profile groups and calculate ambiguity functions

% GUISDAP v.1.60 96-05-27 Copyright Asko Huuskonen and Markku Lehtinen

% 

% Main program to find lag profile groups and calculate ambiguity functions

% Script and functions called:

% load_GUPvar : load GUISDAP experiment definition variables from a file

% read_specpar: defines the scale parameters and spectral grid

% findlpg     : lag profile groups are formed here

% find_vcgroups : similar virtual channels are grouped together

% find_calibrations : associates lpg's with calibration and background lpg

% ambcalc     : vc_Aenv vc_Ap vc_Apenv matrices formed

% lpgwrcalc   : calculation of the range ambiguity functions

% lpgwomcalc  : calculation of the reduced spectral ambiguity functions

% save_toinitfile : saves the variables to a file

%

% See also: load_GUPvar read_specpar nat_const constants lpg_tex save_toinitfile

%

% See also: findlpg find_vcgroups find_calibrations ambcalc lpgwrcalc lpgwomcalc 



clf, hold off

glob_GUP



% Chdir to the experiment directory, store the present path as a return address

original_path=pwd;

fprintf('\n\nChdir to the experiment directory\n')

cd(canon(path_expr))



nat_const



if exist('N_rcprog')~=1, N_rcprog=1; end

for d_rcprog=1:N_rcprog

  Stime=clock;



  if N_rcprog>1, apustr=['_',int2str(d_rcprog)]; else apustr=[]; end

  load_GUPvar



  read_specpar 

  constants



  findlpg

  find_vcgroups

  find_calibrations

  ambcalc,    



  if all(p_XMITloc==p_RECloc) % Monostatic case

    lpgwrcalc,  

    lpgwomcalc,

  else

    disp([' Bistatic measurement:'])

%   Assume that the scattering volume is always completely filled

%   vc_Aenv=ones(600,length(vc_ch)); % For unit length

%   fir=lp_fir; lp_fir=abs(lp_fir);

%   lpgwomcalc, 

%   lp_fir=fir;vc_Aenv=zeros(size(vc_env));

%   vc_Aenv=zeros(size(vc_env));

% New for gup-1.70

    lpgwrcalc,  

    lpgwomcalc, 

  end



  plot(p_om,real(lpg_wom)), drawnow

  lpg_tex

  fprintf('  Time used in initialisation:%8.2f min\n',etime(clock,Stime)/60)

  save_toinitfile 



  fprintf('Radar controller program %g ready\n',d_rcprog) 

end

%fprintf(['\nChdir back to the original directory ', original_path,'\n'])

%cd(original_path)

fprintf('\n*****************************************************\n')

fprintf('*\n*\n* Execute plot_wr to see the range ambiguity functions\n')

fprintf('*\n*\n******************************************************\n')

clear original_path Stime d_rcprog