Title :
A “multi-frequency code” adaptive threshold detector implementation based on TMS320C25 digital signal processor
Author_Institution :
Univ. Federal de Minas Gerais, Belo Horizonte
Abstract :
Summary form only given, as follows. An analog telephonic network modernization system is equipped with a DSP subsystem capable of all functions of an R2 transceiver. Elliptic filters and adaptive threshold detection are adopted to handle noise and impedance mismatch problems associated with relay tracking. A brief study of actual MFC protocol based on autoregressive spectrum modeling is also presented
Keywords :
adaptive signal detection; autoregressive processes; digital signal processing chips; protocols; spectral analysis; telecommunication computing; telephone equipment; telephone networks; MFC protocol; R2 transceiver; TMS320C25 DSP chip; adaptive threshold detector; analog telephonic network; autoregressive spectrum modeling; digital signal processor; impedance mismatch; multi-frequency code; relay tracking; Adaptive filters; Detectors; Digital signal processing; Digital signal processors; Impedance; Protocols; Relays; Telecommunications; Transceivers;
Conference_Titel :
Circuits and Systems, 1995., Proceedings., Proceedings of the 38th Midwest Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2972-4
DOI :
10.1109/MWSCAS.1995.510332
