SARESD

ESD processing to correct phase between two bursts.

Description

This application applies esd processing on two consecutives bursts dimension.

This application has several output images and supports “multi-writing”. Instead of computing and writing each image independently, the streamed image blocks are written in a synchronous way for each output. The output images will be computed strip by strip, using the available RAM to compute the strip size, and a user defined streaming mode can be specified using the streaming extended filenames (type, mode and value). Note that multi-writing can be disabled using the multi-write extended filename option: &multiwrite=false, in this case the output images will be written one by one. Note that multi-writing is not supported for MPI writers.

Parameters

First interferogram (Vector Image) -ininterfup image Mandatory
First interferogram.

Second interferogram (Vector Image) -ininterflow image Mandatory
Second interferogram.

Input SAR image (for metadata only -insar image Mandatory
SAR Image to extract SAR geometry.

Index of first interferogram -burstindex int Default value: 0
Index of first interferogram.

Threshold for correlation rate -threshold float Default value: 0.3
Threshold for correlation rate.

Averaging on azimut -mlazi int Default value: 1
Averaging on azimut

Output Tmp -out image [dtype] Mandatory
Output Tmp.

Azimut shift to correct phase jump into two consecutive interferograms -azishift float Default value: 0
Azimut shift to correct phase jump.

Available RAM (MB) -ram int Default value: 256
Available memory for processing (in MB).

Examples

From the command-line:

otbcli_SARESD -ininterfup ./interferogram_burst0.tiff -ininterflow ./interferogram_burst1.tiff -insar s1a-iw1-slc-vv-20150821t152433-20150821t152458-007363-00a1e0-004.tiff -burstindex 0 -out phaseDiff.tif

From Python:

import otbApplication

app = otbApplication.Registry.CreateApplication("SARESD")

app.SetParameterString("ininterfup", "./interferogram_burst0.tiff")
app.SetParameterString("ininterflow", "./interferogram_burst1.tiff")
app.SetParameterString("insar", "s1a-iw1-slc-vv-20150821t152433-20150821t152458-007363-00a1e0-004.tiff")
app.SetParameterInt("burstindex", 0)
app.SetParameterString("out", "phaseDiff.tif")

app.ExecuteAndWriteOutput()

Limitations

Only Sentinel 1 (IW and StripMap mode) and Cosmo products are supported for now.