USE AND EFFECT OF A SYLLABIC COMPANDOR FOR 800 MHz BAND LAND MOBILE TELEPHONE SYSTEM.

Takeshi Hattori, Fumiyuki Adachi

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Land mobile communications in the VHF/UHF bands experience very rapid and deep fading due to multipath propagation in an urban area. The maximum fading rate is as much as 40 Hz in the 800 MHz band, corresponding to 54 km/h vehicular traveling speed which causes annoying impulsive noises in the speech channel. This paper describes the use and effect of a syllabic compandor for 800 MHz band land mobile telephone system. Laboratory tests using a Rayleigh fading simulator have shown much improvement in speech quality for both thermal noise and co-channel interference, as comapred to the case when there is no compandor.

Original languageEnglish
Pages (from-to)1096-1107
Number of pages12
JournalReports of the Electrical Communication Laboratory
Volume30
Issue number6
Publication statusPublished - 1982 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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