Parameter-estimation techniques of statistical models and their application to SAR images

George A. Lampropoulos; Rita Hui; Anastasios Drosopoulos

doi:10.1117/12.279495

24 October 1997 Parameter estimation techniques of statistical models and their application to SAR images

George A. Lampropoulos, Rita Hui, Anastasios Drosopoulos

Proceedings Volume 3162, Advanced Signal Processing: Algorithms, Architectures, and Implementations VII; (1997) https://doi.org/10.1117/12.279495
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

In this paper we present a method to obtain a maximum likelihood estimation of the parameters of the generalized gamma and K probability density functions. Explicit closed form expressions are derived between the model parameters and the experimental data. Due to their nonlinear nature global optimization techniques are proposed for solving the derived expressings with respect to clutter model parameters. Experimental results show in all attempted cases that the resulting expressions are convex functions of the parameters. In addition to the maximum likelihood solution we present two other solutions. One is based on moment and the other on histogram matching. The Cramer-Rao lower bound is also derived and used for performance comparisons.

Citation Download Citation

George A. Lampropoulos, Rita Hui, and Anastasios Drosopoulos "Parameter estimation techniques of statistical models and their application to SAR images", Proc. SPIE 3162, Advanced Signal Processing: Algorithms, Architectures, and Implementations VII, (24 October 1997); https://doi.org/10.1117/12.279495

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