Working on chandrayaan-2 DFSAR data, there are three datasets available:

1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating point value (one 4-byte floating point real and one 4-byte floating point imaginary value). Each pixel in the slant range image is Seleno-tagged with a lat./lon. value.

2) Ground range image data product: The ground range unsigned short int image file. Each pixel is represented by 2-byte unsigned short int. Each pixel in the slant range image is Seleno-tagged with a lat./lon. value.

3) Seleno-referenced image data product: The Map projected image file. Each pixel is represented by 2-byte unsigned short int file(amplitude).

Which should I be using if i want to generate coherency matrix and perform target decomposition?

Thanks in advance!

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