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New Fast GPS code-acquisition technique using FFT

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2 Author(s)
van Nee, D.J.R. ; Delft Univ. of Technol., Netherlands ; Coenen, /A/.J.R.M.

A new spread-spectrum code-acquisition technique for the navigation systems Navstar/GPS and Glonass is introduced. This technique uses the FFT to compute the correlation function, thereby eliminating the time-consuming code phase shift process. Comparisons with existing systems show a theoretical reduction in acquisition time of about 2000 times.

Published in:

Electronics Letters  (Volume:27 ,  Issue: 2 )