发明名称 Method and apparatus for determining obscuration of sensors that are mounted on a spacecraft
摘要 The field of view of a sensor mounted on a satellite (or other spacecraft) is obscured by various objects, such as celestial bodies and the satellite's own solar panels. A method is disclosed for visualizing and quantifying, with respect to time, variations in the portions of the sensor's field of view that are obscured. The graphical output of a satellite systems analysis program, which features high-resolution, three-dimensional, animated images of spacecraft, celestial bodies and other objects in the space environment, is utilized. The graphical output is simplified to only a few colors to differentiate only background and irrelevant objects from relevant objects. Differentiation is also made, using different colors, in representation of those portions of the field of view that overlap relevant (obscuring) objects from the remainder of the field of view which is unobscured. By counting pixels of the respective colors, frame-by-frame during animation, the percentage of obscuration over time is quantified.
申请公布号 US6850875(B1) 申请公布日期 2005.02.01
申请号 US19990332760 申请日期 1999.06.14
申请人 ANALYTICAL GRAPHICS, INC. 发明人 CLAFFEY DOUGLAS;GRAZIANI PAUL;OHLARIK DERON
分类号 B64G1/36;B64G1/66;(IPC1-7):G06G7/48;G06F17/50 主分类号 B64G1/36
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