Abstract
A new coherent integration method involves Modified Keystone transform (KT) is proposed for the high speed maneuvering target with a constant jerk. Firstly, the range migration is corrected by the modified KT. Then Doppler frequency migration is compensated with the acceleration and jerk estimated by the modified dechirp process. Finally, the coherent integration is achieved by Fourier Transform. Compared with GRFT method [3],the proposed method has a much lower computational complexity and can avoid the interference of blind speed side lobe (BSSL).
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