Digital Wireless Camera Technology Fundamentals

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE Mot. Imag. J
Volume: 112, No. 12, pp. 403–407
Abstract: Analog wireless camera systems have been available to the broadcast industry for decades and are in common use at sporting events for sideline coverage of football, pit-lane coverage of car racing, etcetera. Analog systems are essentially line-of-sight systems, meaning that the frequency modulation (FM) used requires an uninterrupted path between the transmitter and receiver. In situations such as transmission in built-up areas where the transmitted signal can be reflected by a number of routes back to the receiver (multipath interference), analog systems can suffer from picture-quality impairments such as ghosting, noise, chroma flutter, or complete loss. Viewers have become used to these impairments, which can occur when watching in-car cameras or marathon coverage, typically when the transmitter passes under a bridge or behind an obstacle. Traditional analog systems, therefore, have never offered true roaming freedom to cameramen. Analog wireless cameras need labor-intensive manual targeting of transmit and receive antennas to ensure a reasonable quality of link.
Publication Date: 2003-12-01
DOI: 10.5594/J12345
ISSN: Print: 1545-0279 | Electronic: 2160-2492
Link: https://doi.org/10.5594/J12345
Author(s): Len Mann
bio
Len Mann graduated in 1971 with a B.Sc. in electrical engineering and became a chartered engineer (MIEE) in 1977. His career has centered on R&D with companies such as Kontron, Cardiac Recorders, Cabletime, and for the past 11 years with Link Research as managing director.
Copyright: © 2003 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1. Van Nee Richard Prasad Ramjee , OFDM for Wireless Multimedia Communications , Artech House Publishers : Boston and London , 2000 . EXTERNAL
2. Watkinson John , Compression in Video and Audio , Focal Press : Oxford , 1995 . EXTERNAL

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<span class="citation">Len Mann; <cite>Digital Wireless Camera Technology Fundamentals</cite>, SMPTE Motion Imaging Journal ( Volume: 112, Issue: 12, December 2003); SMPTE, 2003. Available at <a href="https://doi.org/10.5594/J12345" target="_blank" rel="noopener">https://doi.org/10.5594/J12345</a></span>

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Len Mann; Digital Wireless Camera Technology Fundamentals, SMPTE Motion Imaging Journal ( Volume: 112, Issue: 12, December 2003); SMPTE, 2003
doi: 10.5594/J12345
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