Optimized complex signal processing in multichannel synthesized aperture radar
Valerii Konstantinovich Volosyuk, Victor Filippovich Kravchenko, A.V. Sokolnikov, O.A. Gorbunenko, Valeriy A. Onishchuk, V.M. Velasco Hererra · Third International Kharkov Symposium 'Physics and Engineering of Millimeter and Submillimeter Waves'. MSMW'98. Symposium Proceedings (Cat. No.98EX119) · 2002
The problems complicating surface remote sensing by SAR are increased demands for accuracy and resolution, necessity for multiparametric measurements for different frequency bands, different polarization, from different directions. This signal processing must be complexed (combined). In these systems it is worthwhile to use additional (surplus) information under images forming in one channel, which has a presence in other signals, received in other channels. In the proposed manuscript the algorithms of combined processing in multichannel SAR construction receiving signals in the different frequency bands, on the different types of polarization, from the different directions are examined. These algorithms were synthesized by solving the optimization problems. They include the classic operation of the aperture synthesis and operations of the adaptive signal whitening, operations of its mean power in filters with nonpermanent and nonlinear structures of smoothing windows, operations of the Earth cover parameters and statistical characteristics calculation as well.