Recent content by denni0302

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    What is the purpose of the fourth satellite in GPS navigation?

    ahh great haha. i google defined pseudorange (the term used in wiki article) and states; "A distance measurement based on the correlation of a satellite transmitted code and the local receiver's reference code, that has not been corrected for errors in synchronization between the transmitter's...
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    What is the purpose of the fourth satellite in GPS navigation?

    thanks heaps Tusike! it is pretty clear, thanks for referrin to that image. im still a little baffled.. so the circle around fourth satellite(with r = p4) is the distance the reciever thinks it is from the satellite, but the real distance is r4? i understand now the correct time - receivers...
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    What is the purpose of the fourth satellite in GPS navigation?

    Hey all, im doing a individual info search on GPS. i can understand everything (well its just a basic overview of GPS) but the one thing i can't get my head around is why the need for a fourth satellite? i know it corrects the timing as the receiver does not have an atomic clock. I've read 4 or...
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