A New Cross-range Scaling Algorithm Based on FrFT

摘要：

Inverse synthetic aperture radar (ISAR) generates two dimensional high resolution images of targets in range-Doppler domain. In order to determine the cross-range dimension of the target or implement polar formatting to reconstruct more focused ISAR images, estimation of the rotation angle is required. A new algorithm for cross-range scaling (CRS) is proposed to estimate the rotation angle, which makes use of the information hidden in the chirp rate of echoes from the scattering centers. A technique based on Fractional Fourier transform (FrFT) is used to estimate the chirp rate, simulation and real data analyses are provided to verify the effectiveness of the proposed algorithm.

关键词： Inverse synthetic aperture radar (ISAR) Cross-range scaling Fractional Fourier transform

作者: Jianjun Gao Fulin Su

作者单位: School of electronics and information Engineering, Harbin Institute of Technology, Harbin, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 2043-2046

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）