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Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers (1994)
Pacific Grove, CA, USA
Oct. 31, 1994 to Nov. 2, 1994
ISSN: 1058-6393
ISBN: 0-8186-6405-3
pp: 842-846
G. Kremer , Trimble Navigation Ltd., Sunnyvale, CA, USA
J. MacKnight , Trimble Navigation Ltd., Sunnyvale, CA, USA
R. Lao , Trimble Navigation Ltd., Sunnyvale, CA, USA
S. Goldberg , Trimble Navigation Ltd., Sunnyvale, CA, USA
ABSTRACT
Data communication over VHF/UHF land mobile radio channels presents a difficult, yet well understood set of technical challenges. These challenges include time-varying multipath profiles, Rayleigh fading, and low to moderate signal-to-noise ratio. Modem designs must support additional application based constraints including rapid synchronization, spectrally efficient modulation, a reliable over-the-air protocol, and relatively low cost. The cost constraint, along with an interest for easy support and upgradability, motivated a single DSP processor radio modem design that supports both control and modem applications. An implementation of such a modem is described which meets all of the design criteria.<>
INDEX TERMS
data communication, land mobile radio, synchronisation, tracking, packet radio networks, modems, time-varying channels, multipath channels, Rayleigh channels, fading, transport protocols, Global Positioning System, digital signal processing chips, signal processing
CITATION

G. Kremer, J. MacKnight, R. Lao and S. Goldberg, "A single processor packet radio modem for land mobile vehicle tracking applications," Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers(ACSSC), Pacific Grove, CA, USA, 1995, pp. 842-846.
doi:10.1109/ACSSC.1994.471580
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