Detection of constant radial acceleration weak target via IAR-FRFT

A novel coherent integration algorithm, improved axis rotation fractional Fourier transform (IAR-FRFT), is proposed to detect the weak targets with a constant radial acceleration. IAR-FRFT could eliminate the linear range migration and alleviate the nonlinear range migration via an improved axis rot...

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Bibliographic Details
Published in:IEEE transactions on aerospace and electronic systems 2015-10, Vol.51 (4), p.3242-3253
Main Authors: Rao, Xuan, Tao, Haihong, Su, Jia, Jian Xie, Xiangyang Zhang
Format: Article
Language:English
Subjects:
Acceleration
Aircraft components
Coherence
Computational complexity
Constants
Doppler effect
Electronic systems
Fourier transforms
Gain
Interpolation
Migration
Time-frequency analysis
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Summary:A novel coherent integration algorithm, improved axis rotation fractional Fourier transform (IAR-FRFT), is proposed to detect the weak targets with a constant radial acceleration. IAR-FRFT could eliminate the linear range migration and alleviate the nonlinear range migration via an improved axis rotation transform and realize coherent integration via fractional Fourier transform. Numerical experiments verify the performance of IAR-FRFT on four aspects: coherent integration time, coherent integration gain, computational complexity, and multitarget detection.
ISSN:0018-9251
1557-9603
DOI:10.1109/TAES.2015.140739