在现今时代,人类最先进的对地观测手段是地球资源卫星。地球资源卫星可以方便地观测地球的矿产、农作物长势、森林、渔业、污染等分布情况,还可以进行地图测绘、城市规划,自然灾害预测等。 资源卫星之所以神通广大,一是因为它具有居高临下的优势,可一览地球大范围的情况,同时,它还具有实时地不间断的传递信息的能力,而这些优势的实现是因为它载 In today’s era, the most advanced earth observation device for human beings is the Earth Resources Satellite. Earth resources satellites can easily observe the earth’s mineral resources, crop growth, forests, fisheries, pollution and other distribution, but also can map mapping, urban planning, natural disaster prediction. The reason that resource satellites are so versatile is that they have the advantage of commanding presence to take a broad view of the earth and at the same time have the ability to transmit information in real time and incessantly because of the