How can GPS receiver use aiding data to search SVs?

Discussion in 'General GPS Discussion' started by benzfish, Jul 6, 2011.

  1. benzfish

    benzfish

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    Hello, all.
    Can you tell me the start flow of GPS receiver?
    If there is some aiding data in the GPS receiver, like warm start, the receiver can use the almanac which in the aiding data to accelerate the searching time. But if the receiver is far far away from the latest start place, maybe 1000km away, the aiding data which is storing latest start data may delay the seaching time, because the almanac is wrong or not fix the current place, am I right? If not what is the right flow? How GPS receiver use aiding data stored in itself? Thanks for helping me~!
     
    benzfish, Jul 6, 2011
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