Originally posted by eric1810 at 2004-9-23 02:18 PM:
GPS電動插秧 農夫靠邊站
Originally posted by geng at 2004-9-23 05:53 PM:
太誇張了!
可是,如果雲層過厚,會不會把秧苗種到路上?
Originally posted by lcm3647 at 2004-9-23 09:31 PM:
誤差在兩公分內??這是用軍事衛星定位的嗎??
Originally posted by shinhung1018 at 2004-10-2 11:55 AM:
內文有提到同時運用五顆衛星校正,所以能夠到達誤差在兩公分內。
Originally posted by irdiot at 2004-10-7 08:29 PM:
理論上衛星定位只要三顆衛星就可以定位了,如果訊號正確的話。
衛星數目愈多不見得可以縮小誤差,如果訊號不穩反而容易飄移。
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