Abstract
A novel methodology utilizing the direct data domain approach to space-time adaptive processing (STAP) in airborne radar environments is presented in this paper. The deterministic least squares adaptive signal processing technique operates on a snapshot-by-snapshot basis to determine the adaptive weights for nulling interferences and estimating signal of interest (SOI), and eliminates the requirement for the secondary data from neighboring range cell. This is in contrast to conventional adaptive techniques where processing is done by taking the time averages as opposed to spatial averages. Simulation results illustrate the efficiency of interference suppression in nonhomogeneous environment.
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