ISAR Imaging of Ship Target with Complex Motion Based on New Approach of Parameters Estimation for Polynomial Phase Signal

被引：0

作者：

Yong Wang

Yi-Cheng Jiang

机构：

[1] Harbin Institute of Technology,Research Institute of Electronic Engineering Technology

来源：

EURASIP Journal on Advances in Signal Processing | / 2011卷

关键词：

Parameter Estimation; Image Quality; Receive Signal; Estimation Algorithm; Frequency Shift;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

ISAR imaging of ships at sea with significant motion results in the Doppler frequency shift for the received signal is time-varying, which will deteriorate the ISAR image quality for the Range-Doppler (RD) algorithm. In this paper, the received signal is modeled as a multicomponent cubic phase signal (CPS), and a new method for estimating the parameters of CPS based on the integrated high-order matched phase transform (IHMPT) is proposed. This algorithm is simpler and more computational efficient than some of other parameters estimation algorithms proposed previously. Then, combined with the Range-Instantaneous-Doppler (RID) technique, the high quality instantaneous ISAR images can be obtained. The results of simulated and measured data are provided to demonstrate the effectiveness of the new method proposed.

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