Extract the backscatter coefficient value

How to quickly extract the backscatter coefficient value of the specific pixel in multiple remote sensing images, the pre-processing has been completed. Thank you!

You make a graph of this chain. Then you use it in batch processing

Thank you!You answered my last question, I have already done the pre-processing. But I don’t know how to extract the backscatter coefficient from my designated point. I have multiple remote sensing pictures.I want to extract the data at once.

Please have a look at the answer of marpet here: How to extract value from sentinel 3 OLCI maps for a specific point.?

Maybe, the time-series tool is also interesting to you: SAR Time-series Analysis tool"
You find the required steps here: Time Series (Temporal) of NDVI