Codage par blocs d'échantillons pour la numérisation des signaux multiplexés par répartition en fréquence
Abstract
The characteristics, quality objectives and proposed coding methods of frequency division multiplexed signals are discussed along with the application to a supermaster group (900 telephone channels) of block-companded coding. Attention is given to the availability of a linear coder of 11 bit definition for a sampling frequency greater than 8 MHz. Performances with and without transmission errors are theoretically analyzed and two laboratory models are described. In addition, the feasibility of a coding and digital multiplexing system of two supermaster groups in a gross bit rate of 139,264 kbit/s is considered.
- Publication:
-
Annals of Telecommunications
- Pub Date:
- May 1980
- DOI:
- 10.1007/BF03000464
- Bibcode:
- 1980AnTel..35..155M
- Keywords:
-
- Data Compression;
- Digital Systems;
- Frequency Division Multiplexing;
- Pulse Communication;
- Signal Encoding;
- Signal Processing;
- Algorithms;
- Biternary Code;
- Error Signals;
- Linear Systems;
- Nonlinear Systems;
- Random Errors;
- Signal Transmission;
- Telephony;
- Communications and Radar;
- Signal analogique;
- Multiplexage fréquence;
- Numérisation;
- Conversion AN;
- Modulation impulsion codage;
- Code bloc;
- Compression expansion signal;
- Analog signal;
- Frequency division multiplexing;
- Digitizing;
- Pulse code modulation;
- Block code;
- Companding