title: Improved Reconstruction of Radio Holographic Signal for Forward Scatter Radar Imaging.
abstract: Forward scatter radar (FSR), as a specially configured bistatic radar, is provided with the capabilities of target recognition and classification by the Shadow Inverse Synthetic Aperture Radar (SISAR) imaging technology. This paper mainly discusses the reconstruction of radio holographic signal (RHS), which is an important procedure in the signal processing of FSR SISAR imaging. Based on the analysis of signal characteristics, the method for RHS reconstruction is improved in two parts: the segmental Hilbert transformation and the reconstruction of mainlobe RHS. In addition, a quantitative analysis of the method's applicability is presented by distinguishing between the near field and far field in forward scattering. Simulation results validated the method's advantages in improving the accuracy of RHS reconstruction and imaging.
authors.affiliation: Beijing Key Laboratory of Embedded Real-time Information Processing Technology, School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China. cchchb@163.com.
authors.forename: Cheng
authors.initials: C
authors.lastname: Hu
authors.affiliation: Beijing Key Laboratory of Embedded Real-time Information Processing Technology, School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China. liuchangjiang@bit.edu.cn.
authors.forename: Changjiang
authors.initials: C
authors.lastname: Liu
authors.affiliation: Beijing Key Laboratory of Embedded Real-time Information Processing Technology, School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China. bitwangrui@gmail.com.|Department of Electronic Engineering, Tsinghua University, Beijing 100084, China. bitwangrui@gmail.com.
authors.forename: Rui
authors.initials: R
authors.lastname: Wang
authors.affiliation: Beijing Key Laboratory of Embedded Real-time Information Processing Technology, School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China. zengtao@bit.edu.cn.
authors.forename: Tao
authors.initials: T
authors.lastname: Zeng
keywords: Hilbert transform; forward scatter radar; radar imaging; radio holographic signal