Gamma MSP: Reference Manual

dop_interf

ANSI-C program: dop_interf.c

NAME
dop_interf - Optimize for interferometry the MSP Doppler function and processing bandwidth for a pair of images.

SYNOPSIS
dop_interf <SAR_PAR_1_in> <PROC_PAR_1_in> <PROC_PAR_2_in> <PROC_PAR_1_out> <PROC_PAR_2_out> <doppler>

<SAR_PAR_1_in>	MSP Sensor/raw data parameter file 1
<PROC_par_1_in>	input MSP processing parameter file for scene 1
<PROC_par_2_in>	input MSP processing parameter file for scene 2
<PROC_par_1_out>	output MSP processing parameter file for scene 1
<PROC_par_2_out>	output MSP processing parameter file for scene 2
<doppler>	output doppler function as a function of range sample number (plot file)

EXAMPLE
dop_interf ERS1_ESA.par p8560.slc.par p9562.slc. par p8560_int.slc.par p9562_int.slc.par 8560_9562.dop

DESCRIPTION
This program averages the Doppler polynomials from two passes over the same scene to obtain a Doppler centroid for processing the two scenes that improves the correlation. Under the assumption that the tracks flown by the SAR sensor are parallel, processing these scenes using the average of the Doppler centroids for the two passes and reducing the processing bandwidth to the region of the spectrum overlap will raise the correlation in the generated interferogram. Only the Doppler bandwidth common to the two passes should be used for generating the SLC images. This program is particularly useful for processing data from ERS tandem pairs where ERS-1 and ERS-2 have significantly different Doppler centroids when imaging the same scene.