Proceedings of the Korean Institute of Navigation and Port Research Conference (한국항해항만학회:학술대회논문집)

Korean Institute of Navigation and Port Research (한국항해항만학회)
권호 표지

Speedup Technique of FFT based Signal Acquisition at Software-based GNSS Receiver

  • Yuasa, Jun-Ichi (Laboratory of Communication Engineering, Tokyo University of Marine Science and Technology) ;
  • Kondou, Shun-Ichiro (Laboratory of Communication Engineering, Tokyo University of Marine Science and Technology) ;
  • Kubo, Nobuaki (Laboratory of Communication Engineering, Tokyo University of Marine Science and Technology) ;
  • Yasuda, Akio (Laboratory of Communication Engineering, Tokyo University of Marine Science and Technology)
  • Published : 2006.10.18
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Abstract

Software-based GNSS receivers have the great advantage in flexibility compared with conventional receivers. But it has some problems to processing IF level Signal RAW data, need long time to process long term data and TTFF is long because the process is too slow. So this time, we concentrated on the signal acquisition, and examined the speedup technique. Using this technique, the acquisition was speedup dramatically, and signal-to-noise ratio was improved.

Keywords