Novel Scaling Approach for ISAL via the Fractional Fourier Transform

摘要：

　　Inverse Synthetic Aperture LADAR(ISAL)can obtain high resolution images of remote targets.In order to measure the dimension of the target,the ISAL image must be scaled.Many existing scaling methods require isolated strong scattering centers which are not easily found in ISAL images.To solve this problem,a novel ISAL scaling method is proposed.The method estimates the Doppler frequency modulation rate of each range row by the fractional Fourier transform(FrFT)and image entropy.The linear relationship between the frequency modulation rate and the range is used to obtain an estimate of the target equivalent rotational angular velocity which is the key parameter for scaling.The outfield experimental results confirm the effectiveness of the method.

作者: Di Mo Ning Wang Ziqi Song Ran Wang Yang Yi Yirong Wu

作者单位: Institute of Electronics,Chinese Academy of Sciences,Beijing,China;University of Chinese Academy of Institute of Electronics,Chinese Academy of Sciences,Beijing,China

会议类型: 国际会议

会议名称: The 2nd International Symposium on Application of Materials Science and Energy Materials (SAMSE 2018) 第二届材料科学应用与能源材料国际研讨会2018年

会议地点: 上海

会议语种:英文

页码: 1-6

在线出版日期: 2018-12-17（万方平台首次上网日期，不代表论文的发表时间）