Title :
Reduced cost implementation of low SNR frequency estimators for satellite DVB
Author :
Calvo, Pilar M. ; Sevillano, Juan F. ; Velez, I. ; Irizar, Andoni
Author_Institution :
Dept. of Electron. & Commun., CEIT Res. Center, San Sebastian, Spain
Abstract :
In blind carrier frequency estimation at low SNR the so-called threshold phenomenon appears. Thus, if the SNR decreases, the implementation complexity must increase to keep performance. We present a maximum-likelihood based estimator which is able to reduce the threshold 2 dB without rising implementation costs.
Keywords :
digital video broadcasting; direct broadcasting by satellite; fast Fourier transforms; frequency estimation; maximum likelihood estimation; radio receivers; DVB-S receivers; DVB-S reception systems; FFT; blind carrier frequency estimation; implementation complexity; low SNR frequency estimators; maximum-likelihood based estimator; satellite DVB; satellite digital video broadcasting; threshold phenomenon; Artificial satellites; Costs; Digital video broadcasting; Flexible printed circuits; Frequency estimation; Frequency synchronization; Manufacturing; Maximum likelihood estimation; Quadrature phase shift keying; Satellite broadcasting;
Conference_Titel :
Consumer Electronics, 2005. ICCE. 2005 Digest of Technical Papers. International Conference on
Print_ISBN :
0-7803-8838-0
DOI :
10.1109/ICCE.2005.1429771
