Title :
A new frequency estimator applied to burst transmission
Author :
Bergogne, C. ; Sehier, P. ; Bousquet, M.
Author_Institution :
Telecom Paris, France
Abstract :
In TDMA communications systems using all feedforward synchronization techniques, the quality of data decoding strictly depends on the estimation accuracy of the synchronization parameters (timing, carrier phase/frequency and preamble detection) extracted from the received signal. The frequency offset estimation is the most critical point. Indeed, an inaccurate frequency estimation can cause cycle slips and then errors during decoding. In this paper, we propose an new frequency estimator, analytically derived from the maximum likelihood principle and optimized thanks to variance simulations. Its performance is compared to the Cramer Rao bound.
Keywords :
decoding; feedforward; frequency estimation; maximum likelihood estimation; synchronisation; time division multiple access; TDMA communications; burst transmission; carrier frequency; carrier phase; cycle slips; data decoding; errors; feedforward synchronization; frequency estimator; frequency offset estimation; maximum likelihood principle; preamble detection; received signal; timing; variance simulation; Analysis of variance; Data mining; Frequency estimation; Frequency synchronization; Maximum likelihood decoding; Phase detection; Phase estimation; Phase frequency detector; Time division multiple access; Timing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich, Germany
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.599620