Coherent change detection with GNSS-based SAR -Experimental study-
Coherent change detection with GNSS-based SAR -Experimental study-
复制标题
DOI：
--
复制
发表时间：
2018-07
期刊：
影响因子：
--
通讯作者：
D. Tzagkas
中科院分区：
文献类型：
--
作者：
D. Tzagkas
双基地合成孔径雷达（BSAR）系统是近年来研究的热点。使用机会发射机的可能性增加了雷达系统的灵活性和应用。备选方案之一是使用全球导航卫星系统作为发射机，如全球定位系统、全球轨道导航卫星系统或本研究报告中使用的即将推出的伽利略系统和北斗系统。本论文是基于GNSS的SAR用于检测场景中可能发生的变化的研究结果。虽然被动SAR在成像性能上不如主动SAR，但相干变化检测在被动SAR中的应用是有希望的。本文提出了一个概念验证的研究。研究了空间目标变化与变化前后的相干性水平之间的关系。详细描述了理论分析和实验装置的阶段。模拟场景和实验结果进行了分析。
Bistatic Synthetic Aperture Radar (BSAR) systems are under an increasing amount of research activity over the last years. The possibility of the use of transmitters of opportunity has increased the flexibility and the applications of radar systems. One of the options is the use of Global Navigation Satellite Systems (GNSS) as transmitters, such as GPS, GLONASS or the forthcoming Galileo and Beidou, that is used in this study. This thesis is the result of the study of a GNSS-based SAR used for detection of changes that may occur in a scene. Although passive SAR is outclassed by active SAR in terms of SAR imaging performance, Coherent Change Detection applications in passive SAR can be promising. A proof-of-concept study is presented in this thesis. The connection between spatial target change and the level of coherence before and after the change is investigated. The stages of theoretical analysis and experimental setup are described in detail. Simulated scenarios are presented and the experimental results are analysed.