地球观测卫星上使用的扫描器和传感器具有产生大量数据的能力。因卫星而异,这些数据可能与天气形势图有关,可能与地球资源遥感有关,也还与对冰的移动或者波浪的运动的研究有关。现在数据主要是以数字形式通过卫星的下行信道传输至地面站接收设备,所获得的大量数据要被实时处理是不可能,或者是很费钱的。因此,一种办法是将 Scanners and sensors used on Earth observation satellites have the ability to generate large amounts of data. Depending on the satellite, these data may be related to weather patterns, possibly related to the remote sensing of Earth’s resources, and to the movement of ice or the movement of waves. Now that data is transmitted digitally, primarily via satellite downlink channels, to ground station receiving equipment, it is either impossible or expensive to get large amounts of data to be processed in real time. Therefore, one solution is to