Zengguo Sun

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The calibration factors of synthetic aperture radar (SAR) images are generally obtained by estimation of radar system parameters based on internal calibration and external calibration. In this paper, we propose a simple but efficient method to estimate the calibration factors based on statistical modeling of scattering coefficient. Taking expectation and(More)
Tracking a ballistic re-entry target from radar observations is a highly complex problem in nonlinear filtering. The paper adopts a one-dimensional vertical motion model with unknown ballistic coefficient, we present a square-root quadrature Kalman filter (SRQKF) algorithm for this ballistic target tracking problem. The proposed algorithm is the square-root(More)
The Mellin transformation-based method is developed to estimate the parameters of non-Rayleigh radar cross section (RCS) models for synthetic aperture radar (SAR) images from the observed image. Models investigated include heavy-tailed Rayleigh and Weibull. For each model, we consider the three kinds of images: intensity, square-root of intensity, and(More)