DocumentCode :
3069694
Title :
Reconstruction of signals after filtering and sampling rate reduction
Author :
Fettweis, Alfred ; Nossek, Josef A. ; Meerkotter, Klaus
Author_Institution :
Ruhr-Universität Bochum, West Germany
Volume :
9
fYear :
1984
fDate :
30742
Firstpage :
452
Lastpage :
455
Abstract :
A wave digital filter (WDF) two-port has two input and two output terminals. By using these to appropriately connect a WDF to its transpose, the filtering effect is fully compensated except for an all-pass phase, and this independently of any selectivity requirement. This remains true if at the points of interconnection every second sample is reduced to zero, provided that a certain condition, easily to be satisfied exactly, is fulfilled. Very efficient solutions are then possible. The method is of interest e.g. for subband coding.
Keywords :
Digital filters; Equalizers; Filtering; Hardware; Joining processes; Sampling methods; Scattering; Signal processing; Signal sampling; Transfer functions;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '84.
Type :
conf
DOI :
10.1109/ICASSP.1984.1172334
Filename :
1172334
Link To Document :
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