Application Of Fast Predictive Bearing Algorithm In 3D Wideband Signal Tracking
Author(s)
S.-Y. Hou, S.-H. Chang & H.-S. Hung
Abstract
Application of fast predictive bearing algorithm
in 3D wideband signal tracking
S.-Y. HOU', S.-H. changl & H.-S. ~ u n g '
1 Department of Electrical Engineering
National Taiwan Ocean University, Keelung, Taiwan, R. 0. C.
Abstract
Many conventional algorithms for direction-of-arrival (DOA) tracking suffer high
computational complexity because of the eigendecomposition of the sample covariance
matrix. In this paper, we propose a new DOA tracking algorithm that uses
the Kalman filter, named the Fast Predictive Angle Tracking (FPAT) algorithm.
Because the FPAT algorithm is based on a single snapshot, it requires low computational
complexity and is able to track fast-moving targets. A weighting matrix
which restrain the angle variation is used to overcome DOA misjudgement caused
by abnormally large angular variation when the targets are at or nearby the crossing
points. It also applies the prediction characteristic of Kalman filter to prevent
the problem of data association. Combining the coherent
Keywords
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