Digital Beamforming for Near-Space Wide-Swath SAR Imaging
Inspired by recent advances in near-space technology and synthetic aperture radar (SAR) technique,this paper presents one digital beamforming-based near-space wideswath imaging technique.Near-space de.ned as the space region between 20km and 100km,which is above storms and not constrained by orbital mechanics like satellite or high fuel consumption like airplane.These advantages make many new capabilities that are not accessible to current spacebore or airborne SAR being possible for near-space SAR.This also o.ers an opportunity to design new SAR imaging technique.This paper deals with conceptual design,as opposed to technological implementation.Multiple beams in azimuth are used to suppress the possible azimuth ambiguities for near-space high-resolution and wide-swath SAR imaging.An example near-space wide-swath SAR is conceptually designed.Simulation results show that the combination of digital beamforming technology and near-space platform can provide a promising solution for remote sensing applications.
Wen-Qin Wang Qicong Peng Jingye Cai
School of Communication and Information Engineering,University of Electronic Science and Technology School of Communication and Information Engineering,University of Electronic Science and Technology
国际会议
昆明
英文
2008-11-01（万方平台首次上网日期，不代表论文的发表时间）