Digital television transmission parameters - Analysis and discussion

Zenith Electron. Corp., Glenview, IL
IEEE Transactions on Broadcasting (Impact Factor: 1.83). 01/2000; 45(4):365 - 385. DOI: 10.1109/11.825532
Source: IEEE Xplore


Terrestrial digital (DTV) broadcasting is now underway in the
major markets in the United States after the Federal Communications
Commission (FCC) in several Reports and Orders set the standard on
December 24, 1996, and subsequently released rules of operation and
broadcaster channel allocations. Broadcasters are concerned with many
in-band and out-of-band transmission parameters, including data signal
quality, clock tolerance, radiated power tolerance, carrier phase noise,
adjacent channel emissions, and precision frequency offset requirements.
The FCC permits DTV power-level changes and/or transmitting antenna
location and height and beam tilt in the context of the minimum
interference levels. The Advanced Television Systems Committee (ATSC)
has provided guidelines for broadcasters in the form of suggested
compliance specifications, which are covered in this paper

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    • "Finally, ATSC and others provide recommendations for both transmitter [20], [21], [24] and receiver [25], [26] per- Fig. 7. E-VSB preprocessor and multiplexer. formance parameters as guidelines for both manufacturers and broadcasters. "
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    ABSTRACT: The developmental aspects and technical characteristics of the ATSC RF transmission standard ("8-VSB") are presented. An exposition is given of the planning and allocation methods that were developed, which are generally applicable to the introduction of a simulcast DTV service independent of the type of modulation used. Additional modulation enhancements (E-VSB)are explained. Techniques for implementation of distributed networks of on-channel transmitters are introduced along with references to some specific applications of these techniques.
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    ABSTRACT: Terrestrial digital television (DTV) broadcast employs complex transmission facilities composed of filters, diplexers, transmission line components, and antennas. The reflections introduced by these components are minimized by broadband design methods, and the nature of the total reflection as these components are combined into a system is developed. The radio frequency (RF) transmission line, immitance, and network parameters used to characterize these systems (i.e., voltage standing wave ratio or VSWR) are related to key DTV performance parameters.
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    ABSTRACT: This paper compares the performances of the ATSC 8-VSB, the DVB-T COFDM, and the ISDB-T BST-OFDM digital television terrestrial transmission systems under different impairments and operating conditions. First, a general system level description is presented. It is followed by comparisons based on laboratory test results and theoretical analyzes. The differences in the system threshold definitions are discussed. In addition, a performance and implementation analysis is also presented for the three transmission systems under different network infrastructures, whenever possible, the impact on the broadcasters or consumers is discussed. Possible performance improvements are also identified
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