卫星多谱段扫描图像MS的定位计算公式
(1) 理想扫描状态下任一像元的似平面坐标系坐标值：
式中，
，为y方向视野角；
; 
为扫描方向瞬时采样角；
为卫星前进方向瞬时采样角；N为一根扫描线的总像元数；I为像元坐标数；J为扫描坐标数。
(2) 采样不等速情况下任一像元的似平面坐标系坐标值：
式中，视野角的变化角v在一个扫描断面里是像元数I坐标的函数，对2,3号卫星：
或 
，对4号卫星：
，其中A为正弦函数曲线摆动幅度，W为扫描镜的角速度，
为扫描开始时间，t为采样时间。
(3) 存在三轴倾斜情况下任一像元的似平面坐标系坐标值：
式中，x,y 为地面点的似平面坐标；
是假定投影中心O的坐标；X,Y,Z是地面点的坐标；f为假定投影主距。
参考文献：
李树楷：卫星多谱段扫描图像MS的定位问题。地理学报，1984, 39(4)
Satellite positioning system that global positioning system (Global Positioning System), is the use of satellite to accurately locate the technology. Can guarantee at any time, any point on the earth can also observe four satellites in order to achieve navigation, positioning, timing and other functions. Can be used to guide aircraft, ships, vehicles, and individuals, safe and accurate along the selected route, arrived at the destination on time, but also can be applied to mobile phones and other pursuit.
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