var_dgps.txt

这是国外关于卫星导航方面一书的源代码

Variables in Workspace after calculating "DGPS", that means
DGPS by processing Pseudorange double differences:
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(after executing the programs DGPSLAB.M and ERG2CODE.M)

variable    description
----------- -----------------------------------------------------------
  xs1       approximate coordinate in X (reference)
  xs2       approximate coordinate in X (Rover)
  ys1       approximate coordinate in Y (reference)
  ys2       approximate coordinate in Y (Rover)
  zs1       approximate coordinate in Z (reference)
  zs2       approximate coordinate in Z (Rover)

  app1_b    approximate latitude Ref.
  app1_h    approximate height Ref.
  app1_l    approximate longitude Ref.
  app2_b    approximate latitude Rover
  app2_h    approximate height Rover
  app2_l    approximate longitude Rover

  dapp_h    height difference from approximate coordinates
  app_bsl   baseline length from approximate coordinates

  s1c1      C/A-Code-Pseudoranges on L1 (reference), or P-Code
            nobs*12 - Matrix
  s1p2      P-Code-Pseudoranges on L2 (reference), nobs*12 - Matrix
  s1eph     ephemeris file (reference), see eph.doc
  s1epo     epochs (rounded) and satellite numbers (reference)
  s1epoms   epochs, not rounded (reference); possibly including ms steps
  s1head    header file for reference, see header.doc

  s2c1      C/A-Code-Pseudoranges on L1 (Rover), or P-Code
            nobs*12 - Matrix
  s2p2      P-Code-Pseudoranges on L2 (Rover), nobs*12 - Matrix
  s2eph     ephemeris file (reference), see eph.doc
  s2epo     epochs (rounded) and satellite numbers (Rover)
  s2epoms   epochen, not rounded (Rover); possibly including ms steps
  s2head    header file for reference, see header.doc

  ants1     antenna height reference     
  ants1dx   antenna height correction in X (Ref)
  ants1dy   antenna height correction in Y (Ref) 
  ants1dz   antenna height correction in Z (Ref) 
  ants2     antenna height rover     
  ants2dx   antenna height correction in X (Rov) 
  ants2dy   antenna height correction in Y (Rov) 
  ants2dz   antenna height correction in Z (Rov) 

  c0        velocity of light
  omega_e   angular rate of the earth (WGS84 definition)

  f1q       squared L1 frequency      
  f2q       squared L2 frequency
  f2pr1     term consisting of squared frequencies relating L1 for iono.free Lc
  f2pr2     term consisting of squared frequencies relating L2 for iono.free Lc

  bsl       baseline length for each epoch (solution) - vector !

  condngls2 conditioning of the normal equation system for each epoch

  delta_h   height difference from calculated coordinates for each epoch (vector)
  delta_x   X component of the vector between ref. and rover for each epoch (vector)
  delta_y   Y component of the vector between ref. and rover for each epoch (vector)
  delta_z   Z component of the vector between ref. and rover for each epoch (vector)

  dxs2      estimated correction in delta_x for each epoch (vector)
  dys2      estimated correction in delta_y for each epoch (vector)
  dzs2      estimated correction in delta_z for each epoch (vector)

  hoe_s2    heights of Rover for each epoch (solution) - vector

  m_bsl         mean of baseline length over all epochs (really: median)
  m_delta_h     mean of height differences over all epochs (really: median)

  rdops2    relative DOP for each epoch (solution) - vector

  s1b       satellite coordinate (latitude) - Matrix (nobs * nsat) (reference)
  s1l       satellite coordinate (longitude)
  s1h       satellite coordinate (height)
  s1x       satellite coordinate (X)
  s1y       satellite coordinate (Y)
  s1z       satellite coordinate (Z)

  s2b       satellite coordinate (latitude) - Matrix (nobs * nsat) (Rover)
  s2l       satellite coordinate (longitude)
  s2h       satellite coordinate (height)
  s2x       satellite coordinate (X)
  s2y       satellite coordinate (Y)
  s2z       satellite coordinate (Z)

  s1dts     satellite clock error (Reference), Matrix 
  s2dts     Satellite clock error (Rover), Matrix

  s1rel     relativistic error due to eccentricity (reference)
            for each epoch
  s2rel     relativistic error due to eccentricity (reference)
            for each epoch

  s2_x      calculated station coordinate X , Rover for each epoch - vector
  s2_y      calculated station coordinate Y , Rover for each epoch - vector
  s2_z      calculated station coordinate Z , Rover for each epoch - vector


  sigmas2   error of unit weight for each epoch - vector

  sxs2      standard deviation of delta_x , for each epoch (solution) - vector
  sys2      standard deviation of delta_y , for each epoch (solution) - vector
  szs2      standard deviation of delta_z , for each epoch (solution) - vector

  rdmax     maximal RDOP      
  rdmin     minimal RDOP      
  rdmit     mean RDOP      

  t1st      first epoch (GPS week seconds)
  tlast     last  epoch (GPS week seconds)
  tmin      time span in minutes
  tsec      time span, seconds part

  xxs2      calculated station coordinate X (Rov), mean    
  yys2      calculated station coordinate Y (Rov), mean    
  zzs2      calculated station coordinate Z (Rov), mean    

  sxs2      standard deviation of xxs2
  sys2      standard deviation of yys2
  szs2      standard deviation of zzs2

  bbs2		calculated latitude of Rover   , mean	 
  lls2      calculated longitude of Rover  , mean  
  hhs2      calculated height of Rover     , mean	 

  slls2     standard deviation of longitude (Rov)
  sbbs2     standard deviation of latitude (Rov)
  shhs2     standard deviation of height (Rov)     

  mit_p2    flag: p2 exists (for ionosphere free solution)
  ionofree  flag: ionosphere free solution (=1) or C/A Code solution (=0)

  dgps_is_calc   flag: solution (DGPS) is resident in memory
                 so that plot routines can access (DGPSPLOT.M)
  dgps_pl_nr     type of plot; see DGPSPLOT.M

  what_modl      string for solution model: pure C/A Code or ionosphere free solution
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iapg 1999 zeb