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9 - Positioning without data link: from BGPS to PPP

from Part III - Mobile positioning at present and in the future

Published online by Cambridge University Press:  05 May 2014

Ivan G. Petrovski
Ivan G. Petrovski
Affiliation:
iP-Solutions, Tokyo
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Summary

This chapter is not about standalone positioning as such, but rather about all the enhancements to standalone positioning, which we have discussed in the previous chapter, but achieved without data link. Here we use the term BGPS (BGNSS) to describe technology that achieves results similar to AGPS (AGNSS), but without immediate corrections data.

Advantages of positioning without a data link

In a 1996 article in GPS World magazine [1], the author stated that GPS is calmly but rapidly penetrating mass markets, and finds itself in cellular phones, cars, watches, cameras, and golf carts. By 2013, this process is almost complete. The GNSS is the essential part in all these devices. This has increased the number of GPS users drastically. With the many navigation satellites in the sky, and a handful of GNSS-enabled gadgets, a user would expect to experience a seamless positioning service – instant positioning at any time and at any place. And that is without becoming a specialist in satellite navigation. Technology in general is trying to meet this new requirement, sometimes quite drastically, as in the Windows 8 interface.

Type
Chapter
Information
GPS, GLONASS, Galileo, and BeiDou for Mobile Devices
From Instant to Precise Positioning
 , pp. 238 - 273
Publisher: Cambridge University Press
Print publication year: 2014

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