How to reduce noise floor stripes in sentinel1 SAR imagery

Dear Forum

I am new to SAR imagery processing.

i download some S1 EW GRDH scenes, i want to use these data to detect the iceberg and sea ice in the sea.
Before, i did Radiometric calibration to get sigma0 data, but there are strong noise strip in the HV imagery,
so how to reduce these strip?
Best regards

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