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Sensors 2015, 15(9), 22401-22418; doi:10.3390/s150922401

ISAR Imaging of Maneuvering Targets Based on the Modified Discrete Polynomial-Phase Transform

Research Institute of Electronic Engineering Technology, Harbin Institute of Technology, Harbin 150001, China
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Author to whom correspondence should be addressed.
Academic Editor: Vittorio M.N. Passaro
Received: 7 July 2015 / Revised: 20 August 2015 / Accepted: 24 August 2015 / Published: 3 September 2015
(This article belongs to the Section Remote Sensors)
View Full-Text   |   Download PDF [781 KB, uploaded 3 September 2015]   |  

Abstract

Inverse synthetic aperture radar (ISAR) imaging of a maneuvering target is a challenging task in the field of radar signal processing. The azimuth echo can be characterized as a multi-component polynomial phase signal (PPS) after the translational compensation, and the high quality ISAR images can be obtained by the parameters estimation of it combined with the Range-Instantaneous-Doppler (RID) technique. In this paper, a novel parameters estimation algorithm of the multi-component PPS with order three (cubic phase signal-CPS) based on the modified discrete polynomial-phase transform (MDPT) is proposed, and the corresponding new ISAR imaging algorithm is presented consequently. This algorithm is efficient and accurate to generate a focused ISAR image, and the results of real data demonstrate the effectiveness of it. View Full-Text
Keywords: ISAR; maneuvering target; PPS; DPT ISAR; maneuvering target; PPS; DPT
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Wang, Y.; Abdelkader, A.C.; Zhao, B.; Wang, J. ISAR Imaging of Maneuvering Targets Based on the Modified Discrete Polynomial-Phase Transform. Sensors 2015, 15, 22401-22418.

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