Assessment of digital television signal processing for correction of interference distortions in single-frequency DVB networks

In this work, a high-efficiency radio-frequency energy-harvesting system that takes use of the Portuguese Digital Television signal (750–758 MHz) to obtain DC power is proposed. To be useful, it is optimized to operate at low-power conditions. For the rectifier, three different solutions are presented: a single-series diode, a single-shunt diode, and a voltage-doubler configuration. The efficiency is similar for the three rectifiers – about 54% with a sine-wave excitation and −10.5 dBm of input power. Field measurements with the voltage-doubler have shown 63% efficiency for the same input power.

Download Full-text

Optimizing Broadcast Spectrum through the Planning of Digital Television Network

Nigerian Journal of Technological Research ◽

10.4314/njtr.v16i2.6 ◽

2021 ◽

Vol 16 (2) ◽

pp. 31-40

Author(s):

A.O Gbenga-Ilori ◽

O. I. Ladipo

Keyword(s):

Coverage Probability ◽

Single Frequency ◽

Digital Television ◽

Network Coverage ◽

Spectrum Utilization ◽

Single Frequency Network ◽

Television Network ◽

Digital Terrestrial Television ◽

Digital Dividend ◽

Analogue To Digital

The transition from analogue to digital television promises an enormous digital dividend that can translate to spectrum resource provision for other services. In this work, the size of the spectrum that can be released as dividend after digital switchover in some selected States of Nigeria is estimated. First, the present analogue television (ATV) network coverage is compared with predicted digital terrestrial television (DTTV) network coverage during a simulcast period, and after ATV switch-off. The predicted DTTV network is initially planned with a multi-frequency network (MFN) and analysis showed that DTTV had a 12.5% improvement in spectrum utilization compared to ATV while achieving a better coverage probability of 95.3%. This work predicted further spectrum savings with the use of a single-frequency network (SFN) design for DTTV network planning. The analysis done showed that 87.5% of the ATV spectrum could be saved for other services after the transition to DTTV using SFN. Keywords: Digital television, SFN, MFN, Spectrum, dividend

Download Full-text

Single carrier VSB digital television transmission, single-frequency networks, and repeater systems

IEEE Transactions on Consumer Electronics ◽

10.1109/30.485455 ◽

1996 ◽

Vol 42 (1) ◽

pp. 1-10 ◽

Cited By ~ 5

Author(s):

W. Bretl ◽

R. Citta

Keyword(s):

Single Frequency ◽

Digital Television ◽

Single Carrier

Download Full-text

ATSC Terrestrial Digital Television Broadcasting Using Single Frequency Networks

ETRI Journal ◽

10.4218/etrij.04.0603.0014 ◽

2004 ◽

Vol 26 (2) ◽

pp. 92-100 ◽

Cited By ~ 16

Author(s):

Yong-Tae Lee ◽

Sung Ik Park ◽

Seung Won Kim ◽

Chieteuk Ahn ◽

Jong-Soo Seo

Keyword(s):

Single Frequency ◽

Digital Television ◽

Television Broadcasting

Download Full-text

Reconstruction of the Reference Signal in DVB-T-based Passive Radar

International Journal of Electronics and Telecommunications ◽

10.2478/v10177-011-0006-y ◽

2011 ◽

Vol 57 (1) ◽

pp. 43-48 ◽

Cited By ~ 25

Author(s):

Marcin Baczyk ◽

Mateusz Malanowski

Keyword(s):

Reference Signal ◽

Real Life ◽

General Purpose ◽

Digital Television ◽

Passive Radar ◽

Television Signal

Reconstruction of the Reference Signal in DVB-T-based Passive RadarIn the paper the problem of decoding of digital television signal and its reconstruction for the purpose of using it in passive radar is presented. The main focus is the reconstruction of the signal using a general purpose receiver, not dedicated to digital television signal reception. The performance of the proposed method is verified on simulated and real-life signals.

Download Full-text