X marks the spot, maybe [GPS navigation].
Navigation has long been considered an art form best practiced by experienced sailors. But today, thanks to the multitude of affordable, hand-held, Global Positioning System receivers on the market, almost anyone can be a navigational Magellan. The US Department of Defense (DOD) is at an advantage:...
| 發表在: | IEEE spectrum 37, 4 (2000). |
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| 主要作者: | |
| 格式: | Article |
| 語言: | English |
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