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In this study, the authors consider the coupled sequential detection and estimation of weak targets for track-before-detect algorithm in long range early warning radar. They present a new strategy and develop a coupled cost function consisting of detection, position estimation and tracking estimation loss. In the proposed procedure, the sequential stopping and detection rules are simplified. Moreover,...
This paper considers the coherent integration problem for a maneuvering target with jerk motion, involving range migration (RM) and Doppler frequency migration (DFM) within the coherent integration period. A fast non-searching method based on adjacent cross correlation function (ACCF) is proposed to realize the coherent accumulation, where two adjacent cross correlation operations are employed to...
This paper considers the range migration correction problem for realizing the coherent integration of a maneuvering target's energy, involving range walk and range curvature within the coherent integration period. A range migration correction algorithm based on the generalized keystone transform (GKT) is proposed, where two GKT operations and fold factor phase term compensation are employed to remove...
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