A fast non-searching method for maneuvering target detection based on ACCF

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 remove the RM and reduce the order of DFM. Then the coherent integration is obtained via Fourier transform. The advantage of the presented method is that it can achieve the coherent integration without any searching procedure and thus the computational cost is reduced significantly. Finally, simulations are provided to demonstrate the effectiveness.