物理学报Issue(14)：116-122,7.DOI:10.7498/aps.62.140705
污染气体扫描成像红外被动遥测系统实时数据处理研究∗
Real-time data processing of remote measurement of air pollution by infrared passive scanning imaging system∗
摘要
Abstract
Infrared passive remote sensing allows remote monitoring and early warning of air pollution. The key to the quantitative resolution is to obtain the background radiation in application process. The existing methods (such as measuring the background and atmosphere radiance spectrum in the same condition or uptake) need in advance or at the same time to measure the background spectrum without target. So, they are difficult to satisfy the demand for rapid response in the practical application. According to the infrared radiation transmission model analysis and by studying the principle of measured spectrum in the 800–1200 cm−1 band containing the target, background and environmental radiation, we propose a real-time spectrum extraction algorithm that does not require to measure the background target feature. The method is applied to the developed polluting gas scanning imaging passive FTIR system. The remote sensing of SF6 is done. Concentration data and the data obtained by the method at the same condition are compared, and the results show that the correlation coefficient squared value reaches 0.99, indicating that the method is feasible, which can effectively improve the response speed of the system and the scope of application.关键词
傅里叶变换红外光谱/被动遥测/实时光谱提取算法Key words
Fourier transform infrared spectroscopy/passive remote sensing/real-time spectrum extraction algo-rithm引用本文复制引用
..污染气体扫描成像红外被动遥测系统实时数据处理研究∗[J].物理学报,2013,(14):116-122,7.基金项目
中国科学院战略性先导科技专项(B类)(批准号:XDB05040500)和国家自然科学基金(批准号:4090501资助的课题.*Project supported by the Strategic Priority Research Program(B) of the Chinese Academy of Sciences (Grant No. XDB05040500) and the National Natural Science Foundation of China (Grant No.4090501 （B类）
