ANSI-C programs: dcomp_sirc.c, dcomp_sirc_quad.c
NAME
dcomp_sirc - uncompress SIR-C data (SINGLE POLARIZATION MODE)
dcomp_sirc_quad - uncompress SIR-C data (QUAD POLARIZATION MODE)
SYNOPSIS
dcomp_sirc <infile> <outfile>
<samples> [loff] [nlines] [threshold]
| <infile> | input SIR-C SLC compressed data file |
| <outfile> | output complex floating point data file |
| <samples> | #samples per input line (4 bytes/complex sample) |
| [loff] | starting line (default=1) |
| [nlines] | #lines to copy(default: entire file, 0 = entire file) |
| [threshold] | amplitude threshold to reject samples, (default, no threshold, all points accepted) |
dcomp_sirc_quad <infile> <outfile>
<samples> <parameter> [loff] [nlines]
| <infile> | input SIR-C SLC compressed data file |
| <outfile> | output complex floating point data file |
| <samples> | #samples per input line (4 bytes/complex sample) |
| <parameter> |
0: SLC total power 1: SLC-HH 2: SLC-HV 3: SLC-VH 4: SLC-VV 5: MLC total power 6: MLC-HVHV* 7: MLC-VVVV* 8: MLC-HHHH* 9: MLC-HHHV* 10: MLC-HHVV* 11: MLC-HVVV* |
| [loff] | starting line (default=1) |
| [nlines] | #lines to copy(default: entire file, 0 = entire file) |
dcomp_sirc_quad pr11458_img_ceos 11458.hh 0 1540 1
DESCRIPTION
dcomp_sirc reads the compressed Single Polarization Mode
SIR-C SLC data (as provided by JPL-NASA), decompresses it and
writes it out in 4-byte float format. The par_SIRC program can be
used to create the SLC image parameter file to determine the
number of image samples in each line.
Quad-pol SLC and MLC (multi-look SLC) image products are stored in the 10 byte/value JPL polarimetric data formation. The program dcomp_sirc_quad functions supports selection of the desired parameter from either the SLC or MLC products. If the input data file is a polarimetric SLC, select parmeters 0 through 4. MLC data parameters can be extracted using parameter values 5 through 11.