Compensation of Faraday Rotation in Multipolarization Scatterometry

Spaceborne remote sensors operating at L-band and lower frequencies can significantly be affected by Faraday rotation (FR) as their signals pass through the Earth´s ionosphere. A method of compensating for FR in multipolarization scatterometry is introduced, which utilizes an ancillary estimate of the FR angle to retrieve corrected polarized scattered powers. Simulation results are presented to demonstrate the behavior of the FR correction process when radar speckle, instrument errors, and errors in the ancillary FR angle estimate are introduced.