送交者: 历历 于 2011-01-27, 12:19:02:

回答: “３颗间隔１２０度”？从数学立体几何上讲，我不明白你说的啥子。 由 历历 于 2011-01-27, 12:09:10:

• no. 4 is need for position, not communication. - steven (39 bytes) 2011-01-27, 12:20:48 (541691)
  • 2个卫星就可覆盖球体，但结合部处及附近效果不佳所以要多加 (无内容) - catfish (0 bytes) 2011-01-27, 13:08:47 (541722)
    • That is impossible, for two points to maintain LOS from - steven (72 bytes) 2011-01-27, 13:16:52 (541724)
      • oops, "for two points to maintain LOS from each other and everywhere..." (无内容) - steven (0 bytes) 2011-01-27, 17:14:43 (541834)

加跟贴