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gamit track命令官方解释

# Run with -d 356_19 -w 12501
*
* Example track command file for processing San Simeon Data
*
*-----------------------------------------------------------------
* OBS_FILE
* Give the rinex file names to be processed, The obs_file command
* must be given first. At least one site must be named as F which
* means the position of the site is fixed. It recommended to have
* only one fixed site. The other sites are denoted K for kinematic.
* The site_stats command determines if a site position will be able
* to change during the processing.
* NOTE: At least one blank line must follow the last station in
* the list and there can be no blank lines between the station
* list.
* To use this command file the -d and -w options must used in the
* runstring:
* track -f track.cmd -d 356_19 -w 12501
* The string after the -d and -w replace the and strings
* below
obs_file
trak trak.03o F
pin1 pin1.03o K
pomm pomm.03o K
lows lows.03o K
crbt crbt.03o K
*-----------------------------------------------------------------
* NAV_FILE
* An orbit file must be given. In this case we are using the
* mit GPS week 1250 day 1 SP3 orbit file.
* NOTE: when 24-hours of data are processed the sp3 files from
* day before and after need to be concatinated withe sp3 file
* from the day being processed to ensure that that are ephemeris
* entries before and after the last data points. A simple unix
* cat command can be used to generate the merged files.
nav_file mit.sp3 sp3
*-----------------------------------------------------------------
* MODE
* A quick method for setting up track is select a mode. In this case
* since the baselines are up to 300 km long we used mode long.
* Defaults set in this mode can be changes with commands after
* setting the mode.

mode long
*----------- ---------------------------
* The commands below are optional and are used to specific output
* files and change some defaults
* Specific day specific output files
pos_root TRAK
res_root TRAK
sum_file TRAK.sum
* Select the output coordinate type. For quick assessment and
* looking at relative motions North, East and Up (all in meters)
* are convenient
* Use NEU+GEOD to get both NEU output and geodetic lat, long and height.
* Use GEOD to get just geodetic coordinates.
out_type NEU
* Running the smoothing filter is reccommended on long baselines
* because this uses all the data for atmospheric delay estimation
* and any non-integer biases (non-resolved biases) are constant
back smooth
* If the sampling interval is in the rinex files this is not needed
* unless a longer sampling interval is desired
interval 1
* Small changes to the default parameters to resolve more bias
* parameters for this data.
x float_type 1 1 LC 0.5 1
* By default and gap in the data introduces a new bias flag in track
* For high rate, telemetered data there are often gaps due to missed
* telemeter. F

or this data set, these gaps are less than 2-seconds
* and here we set gap size before a bias parameter is added to 2-seconds.
bf_set 2 60
* These lines are not strictly needed. During this interval PRN 09
* is not visible at TRAK and these data are reported as being removed
* during the track run (bad double difference because there is no
* combination with TRAK). Adding the explicit edit lines stops these
* messages being output.
edit_ssv crbt 09 2003 12 22 19 26 55.0 2003 12 22 19 42 30
edit_ssv lows 09 2003 12 22 19 26 55.0 2003 12 22 19 42 30
edit_ssv pomm 09 2003 12 22 19 26 55.0 2003 12 22 19 42 30
*--------------------------------------------------------------
* Other commdands that are commonly added
* site_pos -- Sets the apriori coordinates of the sites. If not used
* the values from the RINEX header are used.
* NOTE: If the rinex header has no coordinates (or zero values)
* then this command must be used.
* float_type -- Parameters of the sigmas limits and weights to different
* data types often can be changed for specific data sets to
* resolve more biases to integers. Caution should be used
* to avoid fixing biases to the wrong integer values.