On May 31, the mobile phone millet that millet released GPS of first embarking Shuang Pin on anniversary news briefing 8, GPS we are not unfamiliar, unfamiliar is Shuang Pin GPS this word, what does Shuang Pin GPS mean to us, so whether do we need this function?
The applied range of GPS is very wide, the explanation does not spread out here. What the 8 mobile phones before use millet is Chan Pin's GPS, mobile phone of Chan Pin GPS has limitation, believe a lot of people had encountered taxi fixed position to forbid in use mobile phone, the driver will receive cannot find a person; Agree show obviously when meet and discuss in same dot, but do not meet a face namely; Clew of the navigation when driving is too late, what we had experienced miss exit circumstance to wait for these daily.
Why Where is problem of occurrence so much of meeting of odd frequency GPS? For summary at 3 o'clock: Signal of GPS of finite, Chan Pin suffers GPS signal precision of Chan Pin easily signal of GPS of reflection interference, Chan Pin suffers ionosphere easily to affect. The Chan Pin GPS on the mobile phone is used already agelong, always want to the individual stands first, so millet 8 came. Shuang Pin GPS believes much is to hear this word for the first time, the millet government explanation to the technology, believe everybody also is sciolistic, after all we also are not professional personages. We need to understand when, what is using the profit that it brings to us, have the place with convenient what.
It is Chan Pin's L1GPS so, now is L1 adds GPS of L5 Shuang Pin, let millet 8 can use L1 and L5 at the same time two frequency paragraph GPS signal has fixed position, this affirmation is not simple add one segment, l5 frequency paragraph GPS signal photograph compares L1 frequency paragraph code taller, signal suffers more complex, precision not easily reflection interference, so L1 and L5 can eliminate ionosphere to affect together. This what some technologies bring is essence of life spend definitely rise, the photograph is 10 times smaller to original error.
What thing needs a course to examine actually, so L1 adds the practical effect of L5, look in light of us and of Chan Pin GPS compare a result, pass actual measurement to be able to see, the millet that used Shuang Pin GPS 8 when navigation of island of spaceflight bridge runner band, fixed position dot is almost complete according to orbit course, and because mobile phone of Chan Pin GPS is mixed by the signal interference of trestle hold back, bring about fixed position to nod considerably drift, entered for a time even all round construction division.
Practical effect, believe everybody also saw, manufacturer of 3 earths graph regards Baidu, Gao De, Tecent as partner of technology of official fixed position, right also millet 8 give extremely high opinion, call the progress of the innovation with map navigation revolutionary bound and milepost type. Whether are you still be less than a car to search, cannot find a person, search to be less than a place and be troubled, millet of 8 exceed essence of life to follow fixed position, be worth to have really.
