Title :
Optimal architectural solution using DSP processors for the implementation of an ADPCM transcoder
Author :
Casale, S. ; Russo, R. ; Bellina, G.C.
Author_Institution :
Istituto di Inf. e Telecomunicazioni, Catania Univ., Italy
Abstract :
The authors present an optimal architectural solution for the implementation of a CCITT compliant ADPCM (adaptive differential pulse code modulation) transcoder for digital circuit multiplication equipment in satellite communications. The solution chosen is based on DSP (digital signal processing) processors with the aim of a flexible and compact implementation. A brief overview of the CCITT G.721 and G.761 recommendations is given, and the general characteristics of the DSP utilized for this design are outlined. A feasibility analysis of the ADPCM algorithm is presented, and the architectural solution for the transcoder implementation is given
Keywords :
computerised signal processing; decoding; digital communication systems; encoding; pulse-code modulation; telecommunications computing; ADPCM transcoder; CCITT G.721; CCITT G.761; CCITT compliant; DSP processors; adaptive differential PCM; digital circuit multiplication equipment; digital signal processing; feasibility analysis; optimal architectural solution; pulse code modulation; satellite communications; Algorithm design and analysis; Digital circuits; Digital signal processing; Phase change materials; Pulse modulation; Signal processing algorithms; Speech analysis; Speech coding; Telecommunications; Transmitters;
Conference_Titel :
Global Telecommunications Conference and Exhibition 'Communications Technology for the 1990s and Beyond' (GLOBECOM), 1989. IEEE
Conference_Location :
Dallas, TX
DOI :
10.1109/GLOCOM.1989.64158
