Abstract
This letter investigates the coherent integration problem for the manoeuvring target with a constant acceleration. A fast coherent integration algorithm based on the keystone transform (KT) and the conjugate time reversing transform (CTRT) is proposed to mitigate the range migration (RM) and the Doppler frequency migration (DFM). Firstly, the proposed algorithm employs the KT to remove the RM efficiently. Subsequently, the CTRT is adopted to remove the DFM. Finally, the Fourier transform is conducted to achieve the coherent integration. The computation of the proposed algorithm is in the same order with the KT. Real data processing results demonstrate the effectiveness of the proposed algorithm.
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