Wind speed from Sentinel-3

Hai,
I am searching for wind speed product and I came across Sentinel-3.Can any one suggest me how to get the wind speed from Sentinel-3.

Here comes good example,

ALTIMETRY USING SENTINEL-3 AND THE BRAT TOOLBOX,

Source : https://rus-copernicus.eu/portal/wp-content/uploads/library/education/training/OCEA06_Altimetry_TutorialKit.pdf

Also please take a look at Wind Speed

Source: https://sentinel.esa.int/web/sentinel/user-guides/sentinel-3-altimetry/overview/geophysical-measurements/wind-speed