Portable Digital Links for Mobile Applications

With the establishment of the MPEG-2 video compression standard and widespread deployment of digital terrestrial networks, the door is open to manufacturers to develop portable digital video links using the best aspects of both these technologies. The objective is to produce reliable video feeds for a wide range of mobile applications; until now, these video links have been mainly satisfied by analog technology. The move to digital has been demonstrated successfully, but often incurs the drawbacks of large end-to-end delays, high bandwidth, or bulky equipment overhead. This paper discusses how digital video links for mobile applications can be achieved by combining MPEG-2 video compression, terrestrial modulation, RF up-conversion, and low-power radio amps in a small, DC-powered unit. It will describe the technology and algorithms used, comparing them with other approaches, and the experience gained from deploying equipment in the field.

Print ISSN

1545-0279

Electronic ISSN

2160-2492

Published

2003-02

Content type

Information

DOI

10.5594/J12413