Applications/app_SARDEMToAmplitude.md

+# SARDEMToAmplitude
+
+Simu_SAR step for Diapason chain.
+
+## Description
+
+This application executes the Simu_SAR step with three internal applications : SARDEMProjection, SARAmplitudeEstimation and SARMultiLook.
+
+## Parameters
+
+**Input DEM** `-indem image` *Mandatory* <br />
+DEM to extract DEM geometry.
+
+**Input SAR image** `-insar image` *Mandatory* <br />
+SAR Image to extract SAR geometry.
+
+**Output simulated amplitude Image (this output image is multilooked)** `-out image [dtype]` *Mandatory* <br />
+Output simulated amplitude Image (this output image is multilooked).
+
+**Available RAM (MB)** `-ram int` *Default value: 256* <br />
+Available memory for processing (in MB).
+
+**No Data values for the DEM** `-nodata int` *Default value: -32768* <br />
+No Data values for the DEM.
+
+**Averaging on distance** `-mlran int` *Default value: 3* <br />
+Averaging on distance
+
+**Averaging on azimut** `-mlazi int` *Default value: 3* <br />
+Averaging on azimut
+
+**Gain to apply on ML image** `-mlgain float` *Default value: 1* <br />
+Gain to apply on ML image
+
+## Examples
+
+From the command-line:
+
+```
+otbcli_SARDEMToAmplitude -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("SARDEMToAmplitude")
+
+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")
+
+app.ExecuteAndWriteOutput()
+```
+
+## Limitations
+
+Only Sentinel 1 products are supported for now.