Applying speckel divergence on GRD,
Any suggestions on the following approach?
Thermal noise removal--------->apply orbit --------->calibration to sigma0--------->apply speckel divergence,
Applying speckel divergence on GRD,
Any suggestions on the following approach?
Thermal noise removal--------->apply orbit --------->calibration to sigma0--------->apply speckel divergence,
Hi ,
I would suggest to use a filter for speckle noise suppression (small window size to preserve edges and structure) before data calibration.
Have a look at the paper below
speckle_divergence_TerraSAR-X.pdf (546.0 KB)
I found this answer, so far supports my approach,
Source : https://fromgistors.blogspot.com/2017/04/mapping-urban-area-with-sentinel-1-data.html
But warmly welcome any suggestions,
Do you mean to apply speckel noise filtering in advance? but in this case might be affects the classifications,
I do not think applying speckle noise filtering will degrade your classification results. .
Someone might argue that applying speckle noise filtering on a SAR image, it might not retain the texture of the buildings.
In that case, you can try and calculate speckle divergence on both filtered and non-filtered data and check the outcomes