Open AccessManoeuvring target detection based on keystone transforms and conjugates time reversing transform
Author(s) -
Wang Hui,
Yi Jianxin,
Wan Xianrong
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2018.5225
Subject(s) - reversing , algorithm , design for manufacturability , fourier transform , discrete fourier transform (general) , computation , transformation (genetics) , acceleration , computer science , short time fourier transform , mathematics , engineering , fourier analysis , physics , mathematical analysis , automotive engineering , mechanical engineering , biochemistry , chemistry , classical mechanics , gene
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.