Adaptive generalized DPCA algorithm for clutter suppression in airborne radar system

In this paper, we proposed an adaptive generalized displaced phased center antenna (AGDPCA) algorithm for clutter suppression in airborne radar from a viewpoint of a two-dimensional pulse-to-pulse canceller. First, the clutter model and signal model are given in matrix-vector form, and this leads naturally to the design of a two-dimensional (2-D) two-pulse (2-P) canceller and the GDPCA algorithm formulation. Second, the AGDPCA algorithm is developed by dynamically estimating the 2-D 2-P canceller from the received data. Third, the 2-D 2-P canceller is extended to 2-D multi-pulse canceller to improve the moving target detection performance in AGDPCA algorithm. The effectiveness of the proposed methods is tested via several experiments.