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前不久,在我国长江沿岸军民战抗洪抢险中,中科院遥感卫星地面站利用微波遥感卫星技术对灾区进行大面积、高分辨率、近乎实性的动态监测。从接收数据到完成图像处理只需要4～7小时,而过去这一过程至少要7天。经过这样处理后的数据和图像,准确迅速地呈送有关领导和部门,为宏观决策提供了科学依据。遥感,顾名思义就是从遥远的地方获得信息。在自然界,许多动物具有依靠超声波来进
Not long ago, during the flood and rescue of the civil and military war on the Yangtze River in China, the remote sensing satellite ground station of the Chinese Academy of Sciences used microwave remote sensing satellite technology to carry out large-area, high-resolution and near-solid dynamic monitoring of the affected areas. It only takes 4 to 7 hours from receiving data to completing image processing, compared with at least 7 days in the past. After such processing of data and images, accurately and promptly presented to the relevant leaders and departments for the macro-decision-making provides a scientific basis. Remote sensing, as the name suggests, is getting information from far away places. In nature, many animals rely on ultrasound