Fundamentals of spatial and Doppler frequencies in radar STAP

  title={Fundamentals of spatial and Doppler frequencies in radar STAP},
  author={Philip Ries and Xavier Neyt and F. Lapierre and J. G. Verly},
  journal={IEEE Transactions on Aerospace and Electronic Systems},
The increasing interest for arbitrary antenna arrays in radar space-time adaptive processing (STAP) creates a need for a thorough understanding of the role of, and dependencies between, spatial and Doppler frequencies and related quantities, especially in the characterization of clutter. We successively introduce ldquogeometricalrdquo and statistical concepts, where we respectively emphasize the 4D direction-Doppler (DD) curve and the 4D power spectral density (PSD) that characterize the… CONTINUE READING