Title :
Inverse Synthetic Aperture Radar Imaging of Maneuvering Target Based on the Product Generalized Cubic Phase Function
Author :
Wang, Yong ; Jiang, Yicheng
Author_Institution :
Res. Inst. of Electron. Eng. Technol., Harbin Inst. of Technol., Harbin, China
Abstract :
For inverse synthetic aperture radar (ISAR) imaging of a maneuvering target, the Doppler frequency shift for the received signal in a range bin is time varying. In this letter, the received signal is modeled as a multicomponent cubic phase signal, and a new ISAR imaging algorithm based on the product generalized cubic phase function (PGCPF) is proposed. The PGCPF algorithm can estimate the parameters of a multicomponent cubic phase signal, and combined with the range-instantaneous-Doppler technique, high-quality instantaneous ISAR images can be obtained. Results of real data demonstrate the effectiveness of the new method presented in this letter.
Keywords :
Doppler radar; radar imaging; synthetic aperture radar; target tracking; Doppler frequency shift; ISAR imaging; PGCPF; inverse synthetic aperture radar imaging; maneuvering target; multicomponent cubic phase signal; product generalized cubic phase function; range-instantaneous-Doppler technique; Entropy; Imaging; Inverse synthetic aperture radar; Radar imaging; Time frequency analysis; Transforms; Cubic phase signal; inverse synthetic aperture radar (ISAR); maneuvering target; product generalized cubic phase function (GCPF) (PGCPF);
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2011.2143387