ENH : Wiki for DiapOTB module authored by Gaëlle USSEGLIO's avatar Gaëlle USSEGLIO
# SARDeramp
Deramping/Reramping of S1 IW Burst.
## Description
This application does the deramping or reramping of S1 Iw burst.
## Parameters
**Input burst** `-in image` *Mandatory* <br />
Input burst (from S1 Iw product).
**Input SAR slave image (for interferometry processing** `-inslave image` <br />
Slave SAR Image to extract SAR geometry (interferometry).
**Output burst** `-out image [dtype]` *Mandatory* <br />
Output burst (deramped or reramped).
**Input deformation grid** `-ingrid image` <br />
Input deformation grid.
**Grid Step for range dimension into SLC geometry** `-gridsteprange int` *Default value: 150* <br />
Grid Step for range dimension into SLC geometry.
**Grid Step for azimut dimension into SLC geometry** `-gridstepazimut int` *Default value: 150* <br />
Grid Step for azimut dimension into SLC geometry.
**Activate Reramping mode** `-reramp bool` *Default value: false* <br />
If true, then reramping else deramping.
**Activate Shift mode (To reramp/deramp accordingly a deformation grid)** `-shift bool` *Default value: false* <br />
If true, reramp/deramp accordingly a deformation grid (interferometry processing).
**Available RAM (MB)** `-ram int` *Default value: 256* <br />
Available memory for processing (in MB).
## Examples
From the command-line:
```
otbcli_SARDeramp -in s1b-s4-slc-vv-20160929t014610-20160929t014634-002277-003d71-002.tiff -out s1a-s4-slc-vv-20160818t014650-20160818t014715-012648-013db1-002_Deramp.tiff
```
From Python:
```
import otbApplication
app = otbApplication.Registry.CreateApplication("SARDeramp")
app.SetParameterString("in", "s1b-s4-slc-vv-20160929t014610-20160929t014634-002277-003d71-002.tiff")
app.SetParameterString("out", "s1a-s4-slc-vv-20160818t014650-20160818t014715-012648-013db1-002_Deramp.tiff")
app.ExecuteAndWriteOutput()
```
## Limitations
Only Sentinel 1 products are supported for now.