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Tropospheric Delay Analysis for a GPS Satellite System

The plot below shows a tropospheric delay plot for a GPS satellite system. The script for generating this analysis is shown below.

Figure 1: Tropospheric delay plot
  1. function[] = demoGPS_TropoDelay ()
  2.     %
  3.     %     This demo computes the GPS tropospheric delay as a function
  4.     %     of elevation angle.
  5.     %
  6.     %     p  = 1000 mbar
  7.     %     T  = 290 K
  8.     %     RH = .1
  9.     %
  10.  
  11.     p  = 1000%  mbar
  12.     T  =  290%  deg K
  13.     RH =   .1;
  14.     i  =    1;
  15.     Ev = 4:2:90;
  16.    
  17.     for e = 4:2:90,
  18.         dr(i) = TroposphericCorrection(p, T, RH, e*d2r);
  19.         i = i+1;
  20.     endfor
  21.  
  22.     erase,window('111')
  23.     title('Tropospheric Range Correction');
  24.     plot(Ev,dr,'grid')
  25.     xlabel('Elevation Angle [deg]');
  26.     ylabel('Range Correction [m]')
  27.     demos
  28.  
  29. %endfunction
  30.