“遥感”(Remote Sensing),顾名思意为“遥远的感知。”它是由1962年美国密执安大学等单位发起的“环境遥感讨论会”上,将“遥感”这个术语确定下来。“遥”具有空间概念;“感”表示信息系统。也就是说在遥远的空间,不与目标物接触,而通过信息系统去获得有关该目标物的信息。遥感属于空间科学的范畴,是空间科学一个重要的组成部分。遥感科学是物理学、计算数学、电子计算机技术、航天、航空等许多学科密切结合的、综合性很强 Remote Sensing, whose name implies “distant perception,” was set by the “Remote Sensing Symposium,” launched by the University of Michigan in 1962 and other units, to define the term “remote sensing.” “Remote” has the concept of space; “Sense” means information system. That is to say, in a distant space, not in contact with the target, and through the information system to obtain information about the target. Remote sensing belongs to the category of space science and is an important part of space science. Remote sensing science is closely integrated with many disciplines such as physics, computational mathematics, computer science and technology, aerospace, aviation and so on, and comprehensively