Title :
Performances of VSB and QAM-concepts for digital terrestrial TV transmission
Author :
Gaschler, D. ; Kraus, U.E.
Author_Institution :
Fac. of Electr. Eng., Bergische Univ., Wuppertal, Germany
Abstract :
A computer simulated QAM and VSB concept (ATSC-Standard) for a 7 MHz transmission channel are described and the performances are compared. Each considered concept consists of an individual carrier recovery, timing recovery and phase tracking loop. A periodically inserted training sequence implemented in the transmitter of each realized concept is used to calculate the coefficients of an adaptive equalizer in the receiver. The multipath propagation channel is modeled according to the COST 207 channel models
Keywords :
adaptive equalisers; digital television; multipath channels; quadrature amplitude modulation; synchronisation; television broadcasting; 7 MHz; ATSC-Standard; COST 207 channel models; QAM; VSB; adaptive equalizer coefficients; carrier recovery; digital terrestrial TV transmission; multipath propagation channel modelling; periodically inserted training sequence; phase tracking loop; timing recovery; Adaptive equalizers; Computational modeling; Computer simulation; Cutoff frequency; Demodulation; Oscillators; Quadrature amplitude modulation; TV; Tracking loops; Transmitters;
Conference_Titel :
Devices, Circuits and Systems, 1998. Proceedings of the 1998 Second IEEE International Caracas Conference on
Conference_Location :
Isla de Margarita
Print_ISBN :
0-7803-4434-0
DOI :
10.1109/ICCDCS.1998.705832
