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Cramer-Rao bounds for SNR estimation of oversampled linearly modulated signals

Autor
López, R.; Villares, J.; Riba, J.; Gappmair, W.; Mosquera, C.
Tipus d'activitat
Article en revista
Revista
IEEE transactions on signal processing
Data de publicació
2015-04-01
Volum
63
Número
7
Pàgina inicial
1675
Pàgina final
1683
DOI
https://doi.org/10.1109/TSP.2015.2396013 Obrir en finestra nova
URL
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7018046 Obrir en finestra nova
Resum
Most signal-to-noise ratio (SNR) estimators use the receiver matched filter output sampled at the symbol rate, an approach which does not preserve all information in the analog waveform due to aliasing. Thus, it is relevant to ask whether avoiding aliasing could improve SNR estimation. To this end, we compute the corresponding data-aided (DA) and non-data-aided (NDA) Cramer-Rao bounds (CRBs). We adopt a novel dual filter framework, which is shown to be information-preserving under suitable condi...
Paraules clau
Adaptation, BPSK, Cramer-Rao bounds, Nonconstant modulus constellations, Oversampling, Parameter-estimation, SIMO channels, Signal to noise ratio, Systems
Grup de recerca
SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions

Participants