1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Understanding Antennas based on GPS

  1. Feb 11, 2012 #1
    hi,

    I know that a GPS receiver module receives a number of signals coming from GPS satellites and the receiver can distinguish between them based on a number 1-32. Is there a limit to the number of signal one can send on a specific carrier frequency? Is there a limit to the number of signals a receiver can decode at any point in time and if yes what is the component that is responsible for this number?



    Note: I hope I posted in the right forum :D

    Regards,
     
  2. jcsd
  3. Feb 11, 2012 #2

    davenn

    User Avatar
    Science Advisor
    Gold Member

    Hi there,
    welcome to the forums :)

    there 's lots of good info on the www about GPS signal decoding,
    here's just one of the many GOOGLE returned
    http://wireless.ictp.trieste.it/school_2003/lectures/carlo/GPS/DECODING.HTM

    There are many ways to encode signals, regardless of if they are from a GPS satellite or multiple telephone signals through a optical fibre or microwave link etc
    to name a few....
    TDM = Time Division Multiplexing
    FDM = Frequency Division Multiplexing
    CDMA = Code Division Multiple Access

    Some google searching on digital signal multiplexing systems is likely to bring up lots more examples :)

    cheers
    Dave
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Understanding Antennas based on GPS
  1. The Physics behind GPS (Replies: 21)

  2. Antenna length (Replies: 2)

  3. Gps working (Replies: 12)

Loading...