Unique decomposition of a POLSAR coherency matrix using a generalized scattering model

Shunichi Kusano, Kazunori Takahashi, Motoyuki Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We propose a new POLSAR model-based decomposition with a generalized scattering model. The generalized scattering model is built by adding the ellipticity angle with the particle cloud model. The model is flexible so that it represents surface scattering, double-bounce, volume scattering, and helix scattering. Moreover, a decomposition procedure to use the generalized model is proposed. First, the model parameters are determined so that the resultant model matrix can be subtracted from the observed coherency matrix as much as possible with keeping the residual matrix positive semidefinite. Next, the same operation is applied to the residual matrix with a new parameter set. By repeating this process, the residual matrix becomes null at last and the decomposed matrices perfectly fit the observed one. The decomposition results were compared to the results of the eigenvalue-based decomposition. Due to the orientation randomness, the proposed decomposition makes the interpretation straightforward and has a possibility of making the classification easy.

Original languageEnglish
Title of host publicationConference Proceedings of 2013 Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2013
Pages559-560
Number of pages2
Publication statusPublished - 2013 Dec 1
Event2013 4th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2013 - Tsukuba, Japan
Duration: 2013 Sep 232013 Sep 27

Publication series

NameConference Proceedings of 2013 Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2013

Other

Other2013 4th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2013
CountryJapan
CityTsukuba
Period13/9/2313/9/27

ASJC Scopus subject areas

  • Computer Networks and Communications

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    Kusano, S., Takahashi, K., & Sato, M. (2013). Unique decomposition of a POLSAR coherency matrix using a generalized scattering model. In Conference Proceedings of 2013 Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2013 (pp. 559-560). [6705143] (Conference Proceedings of 2013 Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2013).