lstamf.txt

这是国外关于卫星导航方面一书的源代码

#########################################################################
                  Results of the Carrier Phase Processing 
  applying the ambiguity function technique (AMF) on double differences 
                       GPSLab (c) iapg 1999-2001 zeb
#########################################################################
            This file was created 15-Oct-2003 15:29:35
-------------------------------------------------------------------------
comment:    Project: , Baseline: , Processed by: 

parameters set    :
- observation type      = L1 + L2
- grid width       [m]  = 0.010
- elevation mask  [deg] = 10
- troposphere model     = Modified Hopfield
-------------------------------------------------------------------------

Reference station                   X [m]        Y [m]        Z [m]
-------------------------------------------------------------------------
approximate coordinates        :-2102668.937  4810290.377  3610288.071

Rover station                       X [m]        Y [m]        Z [m]
-------------------------------------------------------------------------
approximate coordinates        :-2102670.273  4810292.546  3610282.094
estimated coordinates          :-2102670.243  4810292.646  3610282.114
standard deviations            :       0.125        0.245        0.116


correlation coeff.  (XY|XZ|YZ) :       0.416       -0.059        0.711


Reference station (WGS84 ellipsoid) Lat [癩      Lon [癩      H [m]
-------------------------------------------------------------------------
approximate coordinates        : 34.69634381 113.61104872      117.645

Rover station     (WGS84 ellipsoid) Lat [癩      Lon [癩      H [m]
-------------------------------------------------------------------------
approximate coordinates        : 34.69628657 113.61105260      116.316
estimated coordinates          : 34.69628631 113.61105186      116.393
standard deviations            :       0.004        0.212        0.210


average position error                       [m]:      0.068

average double difference residual           [m]:      0.046

grid width                                   [m]:      0.010

max. AMF value, [coord. in 21*21*21 search cube]:      0.049 [ 14 21 13 ]
min. AMF value, [coord. in 21*21*21 search cube]:     -0.095 [  3  4  9 ]
Ratio         (0 < r < 1 , greater means better):      0.072

****  Ratio unsufficient (<0.5) !  ****
A ratio < 0.5 means, that min and max in the search area are seperated less than
a half cosine amplitude (flat, insignificant maximum).
It is a possible result when the distance is > 5 km or the search cube is too small.

***** maximum unsufficient (<60%) ! *****
Either the solution is outside of the search cube
or the observations are too noisy or otherwise unsufficient.
It is a possible result when the distance is > 5 km and/or the grid width is to broad.

***** too little grid width *****
The average double difference resudual is more than tree times bigger than the
chose grid width. The noise of the observation data is too large for a
coordinate determination in an accuracy of  0.010  meter

antenna height reference stat.(phase center) [m]:      0.000
antenna height at rover stat. (phase center) [m]:      0.000

height difference from approximate coordin.  [m]:     -1.328
height difference from CDGPS (amf)           [m]:     -1.252

baseline length from approximate coordinates [m]:      6.497
baseline length from CDGPS (amf)             [m]:      6.507

RDOP of the DGPS solution - mean:  2.922    min:  1.441    max: 39.689


simultaneous observation epochs: all satellites at rover 
------------------------------------
PRN      #
------------------------------------
  1    883
  2    925
  3    777
  6    484
 11     10
 13    514
 14    407
 15    379
 17     16
 20    599
 22     41
 25    925
 27    200
 30    177
 31    498
sum of all observations   :       8535


first  epoch    [GPS week seconds]:   176940
last epoch      [GPS week seconds]:   191520
time span (processable obs. time) :      243  minutes     0  seconds 

################################ END ####################################