SAR Amplitude estimation thanks to the associated DEM.


This application estimates a simulated amplitude image thanks to a DEM file.


Input vector of DEM projected into SAR geometry -indemproj image Mandatory
Input vector image for amplitude estimation.

Input DEM -indem image Mandatory
DEM to extract DEM geometry.

Input SAR image -insar image Mandatory
SAR Image to extract SAR geometry.

Multiplying gain -gain float Mandatory
Multiplying gain to obtain a mean radiometry at 100.

No Data values for the DEM -nodata int Default value: -32768
No Data values for the DEM.

Range direction for DEM scan -directiondemc int Default value: 1
Range direction for DEM scan.

Azimut direction for DEM scan -directiondeml int Default value: 1
Azimut direction for DEM scan.

Output amplitude Image -out image [dtype] Mandatory
Output amplitude Image.

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


From the command-line:

otbcli_SARAmplitudeEstimation -indemproj CLZY_S21E055.tiff -indem S21E055.hgt -insar s1a-s4-slc-vv-20160818t014650-20160818t014715-012648-013db1-002_SLC.tiff -out s1a-s4-simu-amplitude.tiff

From Python:

import otbApplication

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

app.SetParameterString("indemproj", "CLZY_S21E055.tiff")
app.SetParameterString("indem", "S21E055.hgt")
app.SetParameterString("insar", "s1a-s4-slc-vv-20160818t014650-20160818t014715-012648-013db1-002_SLC.tiff")
app.SetParameterString("out", "s1a-s4-simu-amplitude.tiff")



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