ANSI-C program: multi_SLC_WSS.c
NAME
multi_SLC_WSS - calculate multi-look intensity image (MLI)
from a ASAR Wide-Swath SLC
SYNOPSIS
usage: multi_SLC_WSS <SLC> <SLC_par>
<MLI> <MLI_par>
| <SLC> | (input) ASAR Wide-Swath SLC image |
| <SLC_par> | (input) ASAR Wide-Swath SLC image parameter file |
| <MLI> | (output) multi-look intensity image |
| <MLI_par> | (output) MLI image parameter file |
EXAMPLE
multi_SLC_WSS 20030921.VV.IS1.SLC
20030921.VV.IS1.SLC.par 20030921.VV.IS1.mli
20030921.VV.IS1.mli.par
DESCRIPTION
multi_SLC_WSS reads the complex-valued input ASAR
WSS SLC image and generates a real-valued multi-look intensity
image (MLI). A new ISP parameter file is generated that
contains information on the image dimension. dimension. ASAR
Wide-Swath SLC data consist of a series of burst images. Each of
these bursts consists of 48 lines, spaced 80 meters in azimuth
(along-track). On average every point on the ground is
imaged by 3 bursts. multi_SLC_WSS detects each of
these bursts and sums the intensity values from multiple bursts
using the times given the SLC line headers. The program detects
low-intensity lines at the edges of the SLC bursts and does not
include these lines when summing the looks from each of the
bursts.
In the process of generating an interferogram from WSS data,
MLI images must be produced from each of the SLCs. These MLI
images are used for estimation of the offsets between the SLC
images and for calculation of the interferometric coherence.
SEE ALSO
WSS_intf