Joint Target Angle and Doppler Estimation in Interference Modeled as a Stable Process
نویسندگان
چکیده
We describe new methods on the modeling of the ampli tude statistics of airborne radar clutter by means of alpha stable distributions We develop target angle and Doppler maximum likelihood based estimation techniques from radar measurements retrieved in the presence of impulsive noise thermal jamming or clutter modeled as a multivariate sub Gaussian random process We derive the Cram er Rao bounds for the additive sub Gaussian interference scenario to assess the best case estimation accuracy which can be achieved Finally we introduce a new joint spatial and doppler frequency high resolution estimation technique based on the fractional lower order statistics of the measure ments of a radar array The results are of great importance in the study of space time adaptive processing STAP for airborne pulse Doppler radar arrays operating in impulsive interference environments
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