| Author Name | Affiliation | Postcode | | Yong Wang* | 1.Research Institute of Electronic Engineering Technology, Harbin Institute of Technology, Harbin 150001, China； 2. Key Laboratory of Marine Environmental Monitoring and Information Processing, Ministry of Industry and Information Technology, Harbin 150001, China | 150001 | | Rongzheng Zhang | 1.Research Institute of Electronic Engineering Technology, Harbin Institute of Technology, Harbin 150001, China； 2. Key Laboratory of Marine Environmental Monitoring and Information Processing, Ministry of Industry and Information Technology, Harbin 150001, China | 150001 |
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| Abstract: |
| High-resolution of Inverse Synthetic Aperture Radar (ISAR) in the azimuth direction can be achieved by increasing the coherent accumulation angle of the target rotation. However, in practice, the coherent accumulation angle may be small. In this paper, a novel algorithm for high-resolution ISAR imaging based on the SParse Iterative Covariance-based Estimation (SPICE) is proposed. As a nonparametric sparse spectrum estimation algorithm, the SPICE algorithm does not need to set any parameters and it converges globally, so it can realize high quality imaging with limited measurements. In addition, a fast implementation of the SPICE algorithm based on the Gohberg-Semencul (G-S) factorization is introduced in this paper. The ISAR imaging of simulated and measured data was analyzed to illustrate the effectiveness of the novel approach. |
| Key words: ISAR high-resolution SPICE fast implementation |
| DOI：10.11916/j.issn.1005-9113.18109 |
| Clc Number:TN957.51 |
| Fund: |
