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Madison O’Connor’
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1 SAR Analysis Made Easy with SARscape 5.1 All rights reserved. ENVI, IDL and Jagwire are trademarks of Exelis, Inc. All other marks are the property of their respective owners. 2014, Exelis Visual Information Solutions, Inc

Main features of radar: > Microwaves (1 mm to 1 m wavelength, 0.

2 What is Synthetic Aperture Radar (SAR)? SAR is a side looking radar system that generates a high resolution image of the Earth s surface for remote sensing applications. Main features of radar: > Microwaves (1 mm to 1 m wavelength, 0.3 to 300 GHz frequency) > Different wavelengths are useful for different purposes (bands: X, C, S, L, P) > Has a unique polarization component (helps distinguish the structure of a surface) > The longer the wavelength, the more radar can penetrate rain, clouds and even the ground West Coast of Italy. Courtesy of ESA

3 Optical versus Synthetic Aperture Radar (SAR) visible to infrared active microwave

Benefits of SAR SAR can be used as a stand alone data source, or as an

Benefits of using Radar: > Controllable source of illumination sees

10 meters or better > Different features can be discriminated compared to

at detecting unique surface features such as: > Ice, ocean waves > Soil

4 Benefits of SAR SAR can be used as a stand alone data source, or as an enhancement to optical or other types of data. Benefits of using Radar: > Controllable source of illumination sees through clouds, smoke, and at night > Images can be high resolution 1 to 10 meters or better > Different features can be discriminated compared to visible iibl sensors uses surface features like roughness > RADAR excels at detecting unique surface features such as: > Ice, ocean waves > Soil moisture, vegetation mass > Man made object like buildings West Coast of Italy. Courtesy of ESA > Geological structures

5 Land Cover Classification High vegetation - forest Medium vegetation - forest Short vegetation/very rough soil Medium-strong scatterer - structures/man made construction Very strong scatterer - rock/urban Very rough hard surface Short vegetation mixed with water - Wetland Rough unvegetated surface - water/bare soil/road Smooth unvegetated surface - water/bare soil/road Calm water Smooth bare soil/wet bare soil Rough soil Very rough soil Russia, ALOS PALSAR-1, 15 meter - October 2009

6 Monitoring Cleared Areas Over Time ALOS PALSAR-1, 15m before

7 Crop Monitoring No data Before ploughing Radarsat-1 Fine Beam 04 Nov Nov Nov 2003 After ploughing Weeds emergence Weeds removal/frost Plants just emerged Plant growing 1 Plant growing 2 Flowering Full plant development Plant drying Full maturiry

8 DEM Generation with Interferometry DEM based on TerraSAR X StripMap, Bolivia. TerraSAR X data, Infoterra

9 Detection of Terrain Displacements Building Movement 11 days 22 days 33 days 44 days 55 days 66 days Filtered interferograms of a building in Barcelona, TerraSAR X StripMap, 1 fringe ~1.55 cm displacement. TerraSAR X data, Infoterra

11 SARscape 5.1 > Improved Workflows > IncreasinglyAccurate Algorithms > Expanded Sensor Support > Flexibility

12 SAR workflows > Guided procedures to generate standard dproducts > End to end > Automatic handling of file names > Simple collection of key parameters > Forward backward possibility

13 Available workflows > Amplitude time series generation > Coherence Change Detection > Coherence RGB > InSAR DEM > TanDEM X bistaticdem > Stereo DEM > DInSAR displacement map > Multi Aperture Interferometry > Amplitude tracking

14 Amplitude time series generation

15 Coherence Change Detection

16 Coherence RGB

17 InSAR DEM Generation

18 TanDEM X Bistatic DEM

19 Radargrammetry / Stereo DEM

20 DInSAR displacement map

21 Multi Aperture Interferometry

22 Amplitude tracking

23 New standard, persistent user interface Until SARscape 5.0 From SARscape 5.1 on

24 Guided output names

25 Simplified access to GCP definition

26 Simplified access to DEM import & download

27 Standard vs. expert use

28 Extended time series analyzers

29 Support of internationalization [I18N]

30 Parallel / GPU platform selection

31 Support of new sensors > RiSAT 1 > Kompsat 5 > Sentinel 1 (preliminary) > ALOS 2 (preliminary)

32 Summary SAR is a useful remotely sensed data type that provides unique insight into geospatial questions The latest release of ENVI SARscape makes it easier for users to extract information from SAR data. Main features of SARscape 5.1: > New SAR workflows within a standardized interface > Support for more SAR sensors > Improved user experience > Guided output names, standard vs. expert settings, simplified access to GCP definition, DEM import and download, an extended time series analyzer, internationalization, and GPU support > Look for more great advancements in the future!

SARscape Modules for ENVI

Visual Information Solutions SARscape Modules for ENVI Read, process, analyze, and output products from SAR data. ENVI. Easy to Use Tools. Proven Functionality. Fast Results. DEM, based on TerraSAR-X-1