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利用3个IGS站处理未知点坐标,给出了详细的操作步骤,从准备数据到结果分析。
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GAMIT - A WORKING RECIPE
ecalais@purdue.edu
Gamit/Globk version 10.01 - 2005/04/20
OBJECTIVE: calculate position of site WLCI using 3 IGS stations
USNO, NLIB, and AMC2
##############################################
# PART 1: PREPARE FILES IN WORKING DIRECTORY #
##############################################
# CREATE A WORKING DIRECTORY
#---------------------------
mkdir ~/010
# GO TO YOUR WORKING DIRECTORY
#-----------------------------
cd ~/010
# COPY YOUR DATA FILES TO YOUR WORKING DIRECTORY AND CONVERT TO RINEX FORMAT
#---------------------------------------------------------------------------
For instance, if your files are stored in /my_disk/data_directory/010 in
Hatanaka compressed format:
cp /my_disk/data_directory/010/????0100.03d.Z .
uncompress *Z
crx2rnx ????0100.03d
rm *.03d
# CHOOSE IGS FILES FOR TIE TO ITRF
#---------------------------------
ecalais@purdue.edu
Gamit/Globk version 10.01 - 2005/04/20
OBJECTIVE: calculate position of site WLCI using 3 IGS stations
USNO, NLIB, and AMC2
##############################################
# PART 1: PREPARE FILES IN WORKING DIRECTORY #
##############################################
# CREATE A WORKING DIRECTORY
#---------------------------
mkdir ~/010
# GO TO YOUR WORKING DIRECTORY
#-----------------------------
cd ~/010
# COPY YOUR DATA FILES TO YOUR WORKING DIRECTORY AND CONVERT TO RINEX FORMAT
#---------------------------------------------------------------------------
For instance, if your files are stored in /my_disk/data_directory/010 in
Hatanaka compressed format:
cp /my_disk/data_directory/010/????0100.03d.Z .
uncompress *Z
crx2rnx ????0100.03d
rm *.03d
# CHOOSE IGS FILES FOR TIE TO ITRF
#---------------------------------
http://igscb.jpl.nasa.gov/
Go to "tracking network" and choose 3 to 10 IGS sites well defined
in ITRF2000, that define a good network encompassing your local array.
# GET IGS DATA FILES
#-------------------
ftp lox.ucsd.edu [anonymous]
cd /pub/rinex/2003/010
bin
get nlib0100.03d.Z
get usno0100.03d.Z
get amc20100.03d.Z
quit
# GET CORS DATA FILES
#--------------------
ftp ftp.ngs.noaa.gov [anonymous]
cd /cors/rinex/2003/010/wlci
bin
get wlci0100.03d.Z
quit
(actually, WLCI can also be found on lox)
# UNCOMPRESS AND CONVERT DATA FILES TO RINEX FORMAT
#--------------------------------------------------
uncompress *Z
crx2rnx nlib0100.03d
crx2rnx usno0100.03d
crx2rnx amc20100.03d
Go to "tracking network" and choose 3 to 10 IGS sites well defined
in ITRF2000, that define a good network encompassing your local array.
# GET IGS DATA FILES
#-------------------
ftp lox.ucsd.edu [anonymous]
cd /pub/rinex/2003/010
bin
get nlib0100.03d.Z
get usno0100.03d.Z
get amc20100.03d.Z
quit
# GET CORS DATA FILES
#--------------------
ftp ftp.ngs.noaa.gov [anonymous]
cd /cors/rinex/2003/010/wlci
bin
get wlci0100.03d.Z
quit
(actually, WLCI can also be found on lox)
# UNCOMPRESS AND CONVERT DATA FILES TO RINEX FORMAT
#--------------------------------------------------
uncompress *Z
crx2rnx nlib0100.03d
crx2rnx usno0100.03d
crx2rnx amc20100.03d
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