Improved integrity, availability, and resistance to RF interference are as important to many land transportation GPS users as defeating the accuracy degradation caused by SA. GPS-based automobile ...
WASHINGTON — You can’t always trust your GPS gadget. As scientists have long known, perplexing electrical activity in the upper atmospheric zone called the ionosphere can tamper with signals from GPS ...
Visit NAP.edu/10766 to get more information about this book, to buy it in print, or to download it as a free PDF. As pointed out in the previous section, civil users of the GPS have accommodated ...
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