Title :
Reconstruction from missing function and derivative samples and oversampled filter banks
Author :
Santos, Dorabella M S ; Ferreira, Paulo J S G
Author_Institution :
Dept. de Electron. e Telecommun., Aveiro Univ., Portugal
Abstract :
The paper deals with two-channel sampling using an oversampled filter bank. It emphasizes sampling of a function, f, and its derivative, f´, at a rate higher than the critical minimum rate (oversampling), and the problem of reconstructing the function even when a finite number of samples (of f or f´) are unknown. The motivation for considering this problem is the need to add redundancy to data, as in conventional channel coding, and the convenience of doing it in a domain suited to the data, as in joint source-channel coding.
Keywords :
channel bank filters; signal reconstruction; signal sampling; function reconstruction; joint source-channel coding; missing derivative samples; missing function samples; oversampled filter banks; signal reconstruction; two-channel sampling; Channel bank filters; Channel coding; Electronic mail; Filter bank; Frequency; IP networks; Redundancy; Sampling methods; Signal analysis; Telecommunications;
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.2004.1326701