An Azimuth ambiguities removal method based on Polarimetric Notch Filter

Citation

Zhang T, Marino A, Zhong W & Xiong H (2017) An Azimuth ambiguities removal method based on Polarimetric Notch Filter. In: volume 2017-July. IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2017, Texas, USA, 23.07.2017-28.07.2017. Institute of Electrical and Electronics Engineers, pp. 2325-2328. https://doi.org/10.1109/IGARSS.2017.8127456

Abstract
In this paper, a new algorithm for detecting ship and removing azimuth ambiguities is presented. The proposed method is developed by combing the third eigenvalue and the Geometrical Perturbation-Polarimetric Notch Filter (GP-PNF) methods. We firstly improve the GP-PNF feature vector with the third eigenvalue calculated by the eigenvalues-eigenvector decomposition method. Then, the new feature vector is used to remove azimuth ambiguities in the framework of the GP-PNF method. To demonstrate the effectiveness of the proposed method, we exploited one AIRSAR C-band dataset here. In comparing with the traditional GP-PNF method, we find our method has a better capability in removing azimuth ambiguities and detect real ships.

Journal
International Geoscience and Remote Sensing Symposium (IGARSS): Volume 2017-July