GAMMA Interferometric Point Target Analysis Software (IPTA): Reference Manual


base_orbit_pt

ANSI-C program: base_orbit_pt.c

NAME
base_orbit_pt - estimate baseline from orbit state vectors (single record or all records)

SYNOPSIS
base_orbit_pt <pSLC_par> <itab> <rec_num> <pbase>

<pSLC_par> (input) stack of SLC/MLI parameters (binary)
<itab> (input) table associating interferogram stack records with pairs of SLC stack records (ascii)
(line entries are: pSLC_rec1 pSLC_rec2 itab_rec_num switch_flag)
<rec_num> record number to process (default -: all records)
<pbase> (output) stack of baseline parameters (binary)

EXAMPLE
base_orbit_pt testsite.ppar testsite.itab 3 testsite.pbase

Writes baseline estimated from orbit parameters to record 3 of the stack of baseline parameters testsite.pbase.

base_orbit_pt testsite.ppar testsite.itab - testsite.pbase

Writes baselines estimated from orbit parameters to all records of the stack of baseline parameters testsite.pbase.

INSTALLATION
Source code base_orbit_pt.c in ./IPTA/src, executable version base_orbit_pt in ./IPTA/bin

DESCRIPTION
base_orbit_pt supports the estimation of baseline parameters from orbit data. This can be done for a single record of the stack of baseline parameters (binary) or for all records.

In the IPTA stacks of baseline parameters in binary format are used to organize the baseline information of sets of interferometric pairs. Pairs are defined in the itab, an ascii file with a table associating interferogram stack records with pairs of SLC stack records. For each pair (line of itab, record of point data stacks) the stack of baseline parameters contains a record with the related baseline parameters which are the same parameters as used in the baseline parameter file, i.e. initial baseline, precision baseline, and phase constant.

The estimated initial baselines (in TCN coordinates) are written to the related record in the stack of baseline parameters, the binary format used to store baseline information of stacks of interferograms. Either a single record or all records can be considered. To consider all records indicate - instead of a record number. Record numbers start with 1.

If a new stack name is indicated the stack is created. Indicating a record number larger than the highest record number of the indicated stack results in an increase of the stack size.

Other programs to manipulate stacks of baseline parameters include base_par_pt and base_ls_pt. base_par_pt supports conversions between conventional baseline parameter files (ascii) and the IPTA stacks of baseline parameters (binary). base_ls_pt supports the estimation of precision baselines from unwrapped interferometric phases and topographic heights.

OPTIONS
none.

SEE ALSO
base_par_pt, base_ls_pt, baseline_file, ipta.h.


© Copyrights for Documentation, Users Guide and Reference Manual by Gamma Remote Sensing, 2003.
UW, CW, TS, last change 20-Feb-2003.