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# SARDEMToAmplitude
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Simu_SAR step for Diapason chain.
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## Description
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This application executes the Simu_SAR step with three internal applications : SARDEMProjection, SARAmplitudeEstimation and SARMultiLook.
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## Parameters
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**Input DEM** `-indem image` *Mandatory* <br />
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DEM to extract DEM geometry.
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**Input SAR image** `-insar image` *Mandatory* <br />
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SAR Image to extract SAR geometry.
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**Output simulated amplitude Image (this output image is multilooked)** `-out image [dtype]` *Mandatory* <br />
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Output simulated amplitude Image (this output image is multilooked).
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**Available RAM (MB)** `-ram int` *Default value: 256* <br />
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Available memory for processing (in MB).
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**No Data values for the DEM** `-nodata int` *Default value: -32768* <br />
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No Data values for the DEM.
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**Averaging on distance** `-mlran int` *Default value: 3* <br />
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Averaging on distance
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**Averaging on azimut** `-mlazi int` *Default value: 3* <br />
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Averaging on azimut
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**Gain to apply on ML image** `-mlgain float` *Default value: 1* <br />
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Gain to apply on ML image
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## Examples
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From the command-line:
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```
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otbcli_SARDEMToAmplitude -indem S21E055.hgt -insar s1a-s4-slc-vv-20160818t014650-20160818t014715-012648-013db1-002_SLC.tiff -out s1a-s4-simu-amplitude.tiff
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```
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From Python:
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```
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import otbApplication
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app = otbApplication.Registry.CreateApplication("SARDEMToAmplitude")
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app.SetParameterString("indem", "S21E055.hgt")
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app.SetParameterString("insar", "s1a-s4-slc-vv-20160818t014650-20160818t014715-012648-013db1-002_SLC.tiff")
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app.SetParameterString("out", "s1a-s4-simu-amplitude.tiff")
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app.ExecuteAndWriteOutput()
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```
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## Limitations
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Only Sentinel 1 products are supported for now. |