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Research Article

EEO. 2021; 20(3): 3267-3272


A Review On Sar Image Noise And Despeckling

Ishika Gupta, Manoj Diwakar, Ms Preeti Chaudhary.




Abstract

Over the past three decades, speckle reduction has been an increasingly important technique in the field of SAR imaging. As a result of the fact that the technology itself produces the SAR images, they can never be missed. Speckle noise, often referred to as multiplicative noise, is a granular pattern distribution that has an effect on SAR images in the same manner that it has an effect on all coherent images. This book also addresses certain other facets of search and rescue (SAR). As a consequence of this, it is vital to identify strategies to improve the sharpness of SAR images. In order to reduce the amount of speckle that is visible in the SAR image, some of the finer details have to be sacrificed. It is difficult to reduce speckle noise while preserving the clarity of the SAR image. Despeckling techniques, which have been extensively researched and proved, can be used to reduce the amount of speckle noise that is present in SAR images. The rules, benefits, and drawbacks of each method are different from one another. In this post, we take a look at some significant work done on despeckling SAR images. Deciphering the pattern distribution of speckle noise in SAR Images has proven to be challenging for many academics and experts in the scientific community. In order to accomplish the objectives of this essay, we will go over some of the principles of radar and SAR, as well as some of the most prevalent strategies for reducing speckle noise from SAR images. Despeckling techniques for SAR images are also the subject of research and analysis to determine the benefits and drawbacks of using them.

Key words: SAR, Despeckling.






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