Title :
Training-sequence assisted QAM-concepts for digital terrestrial TV transmission
Author :
Gaschier, D. ; Janke, M. ; Kraus, U.E.
Author_Institution :
Fac. of Electr. Eng., Bergische Univ., Wuppertal, Germany
fDate :
11/1/1997 12:00:00 AM
Abstract :
The performance of two different computer simulated 64-QAM concepts for a 7 MHz transmission channel are presented and fundamentals of the theory are explained. Both considered concepts use a periodically inserted training sequence to update the complex coefficients of an adaptive equalizer. The multipath propagation channel is modeled according to the COST 207 channel models
Keywords :
Reed-Solomon codes; adaptive equalisers; digital simulation; digital television; multipath channels; quadrature amplitude modulation; sequences; telecommunication computing; television broadcasting; trellis codes; 7 MHz; COST 207 channel models; Reed Solomon encoder; adaptive equalizer; complex coefficients updating; computer simulation; digital terrestrial TV transmission; multipath propagation channel; performance; periodically inserted training sequence; software simulation; training-sequence assisted QAM; transmission channel; trellis encoder; Adaptive equalizers; Computational modeling; Computer simulation; Cutoff frequency; Demodulation; Protection; Quadrature amplitude modulation; Reed-Solomon codes; TV; Transmitters;
Journal_Title :
Consumer Electronics, IEEE Transactions on
