Title :
Minimisation of delay requirements for rational sampling rate alternating systems
Author_Institution :
Dept. of Electron. & Electr. Eng., Surrey Univ., Guildford, UK
Abstract :
An analysis of the delay requirements for rational sampling rate conversion systems is presented. Two transformation rules are derived to minimize the total number of delay units in the system. Using the two rules, a parameter formalized three-dimensional structure with minimum delay requirements can be achieved. This structure is particularly suited to a time multiplexed implementation which allows fewer arithmetic operators and data stores to be built in hardware as compared with a direct implementation of the polyphase structure
Keywords :
delays; digital filters; filtering and prediction theory; minimisation; signal processing; FIR filter; arithmetic operators; data stores; delay minimisation; delay units; minimum delay; multirate processing systems; polyphase structure; rational sampling rate alternating systems; rational sampling rate conversion systems; three-dimensional structure; time multiplexed implementation; transformation rules; Arithmetic; Bismuth; Computational complexity; Delay; Filters; Hardware; Prototypes; Sampling methods; Signal sampling; Speech analysis;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-0003-3
DOI :
10.1109/ICASSP.1991.150698
