No abstract

Abstract-This work presents a technique for assembling a TS (Transport Stream) file, in accordance with the ISDB-Tb (Integrated Services Digital Broadcasting Terrestrial Brazilian) standard, in order to transmit it through a digital TV signal generator to analyze the parameters variation effects of the ISDB-Tb system in the BER (Bit Error Rate) performance. For this analysis, measurements were taken in three different communication channels, with distinct features. In each channel, the 16QAM and 64QAM modulations were evaluated, and several combinations were tested among the following parameters: operating mode, code rate, guard interval and time interleaving. Also, BER measurements were taken for a C/N (Carrier to Noise) range, set from transmitter, then the Eb/No ratio was calculated, which allowed to plot curves for each measure.

No abstract

-This paper presents the development of an amplification system and two antennas for the reception of Digital TV signals. The proposed antennas are based on the halfwave dipole topology (λ/2) with geometry inspired by the meander line antenna (MLA) and magnetic loop antenna. Simulations using software based on the finite element method were performed. The antenna reception and efficiency of amplification system were evaluated through measurements.