Palabras clave:
Digital TV
,
Digital video broadcasting
,
Europe
,
Modems
,
OFDM
,
Prototypes
,
Real time systems
,
Satellite broadcasting
,
System testing
,
TV broadcasting
This paper introduces Rapid Prototyping of a
complex system and the difficulties that appear when a real-time prototype of such a system is approached. These concepts are applied to the construction of a test modem
for Terrestrial Broadcasting of Digital TelThis paper introduces Rapid Prototyping of a
complex system and the difficulties that appear when a real-time prototype of such a system is approached. These concepts are applied to the construction of a test modem
for Terrestrial Broadcasting of Digital Television, in which Orthogonal Frequency Division Multiplexing (OFDM) is the transmission technique.
The possibility of reducing the number of sub-carriers in the OFDM signal and obtaining enough information about
the system performance in hostile environments (multipath, phase noise, non-linear, ... ) is considered and discarded. As a conclusion, a non-real time prototype is
presented which allows one to optimize parameters, verify the possibility of implementation and evaluate subjective
qualities.[+][-]