Title :
Generalized symbol synchronization using variable IIR and FIR fractional-delay filters with arbitrary oversampling ratios
Author :
Makundi, Martin ; Laakso, Timo I. ; Hjorungnes, A.
Author_Institution :
Signal Process. Lab., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
A generalized maximum likelihood symbol synchronization scheme is proposed. It enables use of variable fractional-delay (interpolation) filters when the desired sampling rate conversion factor is non-integer or time varying. Furthermore, both IIR and FIR type variable filter structures can be used in efficient configurations. The paper includes both performance analysis and discussion of implementation complexity.
Keywords :
FIR filters; IIR filters; delay filters; digital radio; interpolation; radio receivers; signal sampling; software radio; synchronisation; FIR filters; IIR filters; digital receivers; digital signal processing; fractional-delay filters; generalized symbol synchronization; interpolation filters; maximum likelihood symbol synchronization; oversampling ratios; sampling rate conversion factor; software radio; variable filter structures; Delay; Digital filters; Digital signal processing; Finite impulse response filter; IIR filters; Interpolation; Receivers; Sampling methods; Signal sampling; Timing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
Print_ISBN :
0-7803-8484-9
DOI :
10.1109/ICASSP.2004.1326280
