CAJ | 학술논문

GNSS-BSAR 是一种利用导航卫星作为发射机的双基地 SAR (BSAR)系统，具有系统代价低等特点，但是其图像分辨率差、信噪比低。结合我国现有的北斗导航卫星系统，该文提出了一种 BSAR 多角度观测与数据处理方法，实现了对目标区域的多角度观测，共获取了26种几何配置下的图像，并提出一种感兴趣区域融合方法生成了多融合图像。获得了较高质量的图像，证明了多角度融合是一种扩展 GNSS-BSAR 遥感应用的有效途径。
GNSS-BSAR 시일충이용도항위성작위발사궤적쌍기지 SAR (BSAR)계통，구유계통대개저등특점，단시기도상분변솔차、신조비저。결합아국현유적북두도항위성계통，해문제출료일충 BSAR 다각도관측여수거처리방법，실현료대목표구역적다각도관측，공획취료26충궤하배치하적도상，병제출일충감흥취구역융합방법생성료다융합도상。획득료교고질량적도상，증명료다각도융합시일충확전 GNSS-BSAR 요감응용적유효도경。
Bistatic Synthetic Aperture Radar (BSAR) based on the Global Navigation Service System (GNSS-BSAR) uses navigation satellites as radar transmitters, which are low in cost. However, GNSS-BSAR images have poor resolution and low Signal-to-Noise Ratios (SNR). In this paper, a multiangle observation and data processing strategy are presented based on BeiDou-2 navigation satellite imagery, from which twenty-six BSAR images in different configurations are obtained. A region-based fusion algorithm using region of interest segmentation is proposed, and a high-quality fusion image is obtained. The results reveal that the multiangle imaging method can extend the applications of GNSS-BSAR.