Acquired by the Enhanced Thematic Mapper on NASA's Landsat 7 satellite, they show temperature, ranging from blue (warm) to yellow (hot).
两张图片由NASA资源探测卫星7号上的增强型专题成像仪获取，蓝色(暖)到黄色(热)部分显示了温度。
2
The algorithm is applicable to precise measuring of the PN code phase of satellite positioning signals and spread-spectrum ranging signals.
该算法的主要应用领域为卫星定位信号和直序扩频测距信号PN码相位的精确测量。
3
Laser cooperative targets is an important instrument of satellite laser ranging system, and has been applied widely in laser range system of missiles, man-made satellite and moon, etc.