"If a navigation signal went wrong, the satellite could inform users within 6 seconds to switch other signals," said Pan Yuqian, chief designer of the BeiDou-3 series.
The satellite is carrying hydrogen and rubidium atomic clocks, which will play a key role in positioning and timing accuracy.
Atomic clocks are the most accurate time and frequency standards. They use vibrations of atoms to measure time. An accurate and ultra-stable set of atomic clocks is essential for global navigation satellite systems.
The clocks are 10 times more stable than those used in previous BeiDou satellites, according to scientists.
【国内英语资讯:China Focus: High-orbit BeiDou-3 satellite boosts Chinas global navigation system】相关文章:
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