نتایج جستجو برای: dvb t2 system
تعداد نتایج: 2257533 فیلتر نتایج به سال:
Reed Solomon decoder plays an indispensable role in many applications involving data transmission, storage and Video broadcasting DVB-T DVB-S2. In this work we propose a new optimized parallel syndrome block [67] for the RS code (15,11) used digital DVB-T. Therefore, proposed is compared to serial existing. On basis of technique architecture based on three syndromes developed. This reduces both...
DEB dehydrogenation reaction was conducted to produce divinylbenzene (DVB) and ethylvinylbenzene (EVB). The effects of temperature, catalyst weight and time factor on the performance of the dehydrogenation reactor were investigated experimentally. Temperature was varied from 550º C up to 600 º C. Temperature affect the conversion of DEB to DVB significantly. The mole fraction of DEB in the outl...
The analysis of the OFDM (Orthogonal Frequency Division Multiplexing) constellation for the DVB-T (Digital Video Broadcasting Terrestrial) signal are studied in this article. The measurements were made on the Romanian territory in two locations with and without obstacles. The measured quality parameters of the DVB-T signal are: CBER (BER before Viterbi), the signal power and MER (the modulation...
This article represents the results of a simulation study of the characteristics of a satellite television channel shaped under the DVB-S2 standard. The formulas for determining BER of a radio channel when using QPSK, 8QPSK and 16APSK modulation are produced. The algorithms determining the probability of error after LDPC and BCH decoders are represented. Based on the analysis of the characteris...
Digital Video Broadcasting Terrestrial (DVB-T) is a leading international standard established for the move from Analog to Digital Broadcasting basically via terrestrial networks. Within DVB-T, it is possible to carry defined data containers in addition to the audio and video in the MPEG-2 transport stream. This paper presents a hardware/software co-design method for the implementation of DVB-T...
This paper describes the Simulink implementation of all functional blocks of a standard Digital Video Broadcasting Terrestrial (DVB-T) transmitter and receiver and presents the simulation model for DVB-T system according to ETSI EN 300 744 V1. 6. 1. The implemented model contains all channel coding and modulation building blocks with the parameters: 8K OFDM-mode, code rate (1/2, 2/3, and 3/4), ...
Within the EMBRACE project an advanced communications system and network was developed. It uses the DVB technology for the high-speed downlink and a novel multi-frequency TDMA system for the return link. The return link is scaleable to accommodate the variety of data rates. Emphasis was put on providing quality of service (QoS) in wireless IP networks. Site diversity is used to increase the ava...
Passive radar systems exploit non-cooperative transmitter to detect targets in areas of interest. Some of the main advantages of such systems with respect to conventional radars include low cost architectures, low energy requirements and potentially null probability of intercept. Digital waveforms like DVB-T and UMTS signals offer relatively wide bandwidth channels which allow achieving good sp...
Within the EMBRACE project an advanced communications system and network was developed. It uses the DVB technology for the high-speed downlink and a novel multi-frequency TDMA system for the return link. The return link is scaleable to accommodate the variety of data rates. Emphasis was put on providing quality of service (QoS) in wireless IP networks. Site diversity is used to increase the ava...
The second generation of terrestrial digital video broadcasting standard (DVB-T2) offers several advantages for greater efficiency. Signal Space Diversity (SSD) contains rotated constellation and Q-Delay (RQD), which is one of advantage that offered to improve the performance over fading channels compared to the non-rotated modulation. In this journal, the proposed low-power de-mapper design of...
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