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(一)二十多年来,遥感作为一项新兴的技术,经历了从航空向航天的发展阶段,并逐步向实用化过渡。以美国陆地卫星为标志的空间遥感技术,已成为人类认识地球、调查资源和监测环境的一种有效手段。在今后十年内,人们将看到新一代新型传感器的使用,遥感技术的纵源发展,将进入完全的实用阶段,而航空遥感作为一种不可替代的补充手段仍将广泛应用。事实上,陆地卫星的 MSS 资料已经提供了大量丰富的信息,1982年发射的陆地卫星—4,
(I) Over the past 20 years, as an emerging technology, remote sensing has experienced a stage of development from aerospace to spaceflight and has gradually moved towards practicalization. Space remote sensing technology marked by the United States terrestrial satellite has become an effective means of human understanding of the earth, resources survey and environment monitoring. In the next ten years, people will see the use of a new generation of new sensors. The development of the vertical source of remote sensing technology will enter a completely practical stage. However, aerial remote sensing will still be widely used as an irreplaceable supplement. In fact, the MSS data from Landsat have provided a wealth of information, and Landsat-4, launched in 1982,