A method of detecting distant objects and determining their position, velocity, or other characteristics by analysis of very high frequency radio waves reflected from their surfaces.

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Why is azimuth resolution worse than range resolution in Sentinel1 (SAR)

Why is the azimuth resolution in Sentinel (SAR sensor) worse than the range resolution? The table in this link gives the resolution for SLC products aquired in the different aquisition modes. In ...
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1answer
67 views

Why does the peak of a mountain appear bright on Radar images

Why does the top of a mountain appear bright on a SAR (radar) image. I know that the peak of a mountain is subject to a layover effect, thus appearing closer on the radar image than the bottom part of ...
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1answer
53 views

Reading Synthetic Aperture Radar raster images using python

Is it possible to read and modify Synthetic Aperture Radar raster images using python? gdal is not able to understand their Type which is Binary (application/octet-stream). One can find sample radar ...
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1answer
53 views

Understanding InSAR interferometry?

I understand that the result of InSAR interferometry yields a LoS deformation and if deformation in the vertical or horizontal is to be computed, it should require additional gps observations at the ...
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44 views

Extract Differential Interferometry from SENTINEL-1 image

I downloaded some SLC images from scihub.esa.int . And I want to extract Differencial Interferometry from them by using SNAP-ESA software ( if you have other softwares that can do the same work I ...
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61 views

How to visualize a C-band SAR sensor measurement

Files: \measurement\s1a-iw2-slc-vv-20141205t171642-20141205t171705-003587-0043c5-002.tiff Size is 24435, 13472 Coordinate System is `' Metadata: AREA_OR_POINT=Area TIFFTAG_DATETIME=2014:12:05 ...
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1answer
32 views

Geo referencing RADARSAT-1 image

I have lots of RADARSAT-1 file in GeoTiff format along with meta data where corner coordinates are available. Corner coordinates are for image portion(except the black portion). But, radar image has ...
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1answer
83 views

I can't get my OpenLayers radar overlay to display correctly

I've tried to overlay a radar image on my map so that I can show the current radar for the United states. However, whenever I load the map, I can't seem to get the projection to look correct. Here's ...
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132 views

Ground Penetrating Radar (GPR) to ESRI raster format

can anyone recommend a software package to convert ground penetrating radar data (in .dzt format) into an ESRI raster format? - Preferably free software. I have come across ZondST2D, but as far as I ...
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4answers
3k views

Free radar (SAR) satellite data

I'm looking for free (non-commercial use) sources of radar (SAR) satellite imagery. Does anyone know of sources?
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1answer
148 views

ALOS PALSAR 1.0 level JAXA Orthorectified K & C Mosaic interferometry?

JAXA is providing free access to PALSAR 50m Orthorectified K & C Mosaic. The files are not in the typical PALSAR format. I'm looking for apps that can read and export this data. It's possible to ...
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87 views

PALSAR 50m Orthorectified K & C Mosaic it's possible to create interferometry?

JAXA is providing free access to PALSAR 50m Orthorectified K & C Mosaic. According to the website, data are provided in raw (HDR) and png. ALOS PALSAR K&C Mosaic or New global 50m-resolution ...
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27 views

Mosaic of TerraSAR-X images using Nest?

I am trying to do a mosaic with TerraSAR-X EEC images which are already georeferenced. However, when I do the mosaic in Nest the images are not together. Can you explain what I am doing wrong? In ...
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1answer
677 views

Lowrance sl2 format… is it GIS data and/or can it be made into GIS data

I have been asked to investigate if Lowrance SL2 (side-scan sonar) format can be put into maps for reports. As I understand it the SL2 format comprises 3 "bands" left-down-right and is more of a ...
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1answer
424 views

Python package for processing GRIB data in windows

I would like to know what python packages can be used to process GRIB (Gridded Binary) data on a Windows system. I know there is something called pygrib, but to use that I have to use cygwin windows ...
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1answer
86 views

Finding Normal to a given point in ECEF coordinates

I have a point of reference called Ground Reference Point (GRP) given in Earth Centred Earth Fixed (ECEF) coordinates as given below: (1.4892e+6, 6.1102e+6, 1.0637e+6) (all distances in meters) I ...
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1answer
154 views

Applications and methods for TerraSAR X

People who already used or are familiar with TerraSAR X, can you point out: Main applications and methods Opensource software tools Thanks
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1answer
115 views

Global composite of radar data available?

Iowa State offers an exceptional NEXRAD composite image as GeoTIFF for the entire continental US at a reasonable resolution. Is there a comparable GeoTIFF composite updated semi-regularly available ...
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184 views

Wifi hotspot localization

Using WiFi 802.11 I'm trying to build WiFi hotspot fingerprints based solely on radio signal strength and mac id. Now I'm wondering: Would it be possible to know the position of hotspot neighbors in ...
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3answers
1k views

Reading palsar k&c 50 data in GDAL or other open source application

I posted this inquiry in the grass-user list. JAXA is providing free access to PALSAR 50m Orthorectified K & C Mosaic. According to the website, data are provided in: Data files (Raw ...