Title :
Coding gain enhancement using generalized polyphase representation
Author :
Soman, A.K. ; Vaidyanathan, P.P.
Author_Institution :
Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA
Abstract :
A characterization of generalized polyphase representations (GPPs), which allow a greater freedom in designing multirate systems is developed. A particular application of GPPs, namely, in enhancing the coding gain of transform coding systems, is studied. The advantage of using GPPs is demonstrated for several inputs. The additional complexity of the new system is only slightly greater than that of the transform coding system, the difference being the higher number of delay elements used. Several properties of the new system are proved
Keywords :
digital filters; encoding; coding gain; digital filters; generalized polyphase representation; multirate systems; transform coding; Autocorrelation; Digital filters; Finite impulse response filter; Random processes; Transfer functions; Transform coding;
Conference_Titel :
Signals, Systems and Computers, 1992. 1992 Conference Record of The Twenty-Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-3160-0
DOI :
10.1109/ACSSC.1992.269160
