发明名称 |
Fast satellite-centric analytical algorithm for determining satellite coverage |
摘要 |
The satellite coverage problem involves the determination of a given satellite's in-view and out-of-view times and durations for a given ground point. To perform global coverage, the planet is divided into an even grid in spherical coordinates. Assuming a minimum elevation from the ground to the satellite of interest, the satellite's ground footprint longitude width is determined analytically at a given latitude. Ignoring planetary triaxality, the footprint is assumed to be east-west symmetric. All grid points with the footprint satisfy line-of-sight geometric constraints. The process is repeated for every satellite at every time point, and coverage statistics are generated over the grid at the end.
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申请公布号 |
US6246360(B1) |
申请公布日期 |
2001.06.12 |
申请号 |
US19990352328 |
申请日期 |
1999.07.13 |
申请人 |
TASC, INC. |
发明人 |
BRAND, JR. DONALD D.;KALKE, JR. JEROME JOSEPH;KLING, JR. RONALD LEE |
分类号 |
B64G1/66;B64G3/00;H04B7/204;(IPC1-7):H04B7/185 |
主分类号 |
B64G1/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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