NORMALIZATION OF THE CHARACTERISTICS OF HETERODYNES FOR DIGITAL RADIO-COMMUNICATIONS SYSTEMS WITH MULTIPOSITION QUADRATURE AMPLITUDE-MODULATION

Authors
BORMINSKIY AN KAPLUNOV PG
Citation
An. Borminskiy et Pg. Kaplunov, NORMALIZATION OF THE CHARACTERISTICS OF HETERODYNES FOR DIGITAL RADIO-COMMUNICATIONS SYSTEMS WITH MULTIPOSITION QUADRATURE AMPLITUDE-MODULATION, Telecommunications & radio engineering, 48(6), 1993, pp. 20-23
Citations number
NO
Categorie Soggetti
Engineering, Eletrical & Electronic",Telecommunications
Journal title
Telecommunications & radio engineering → ACNP
ISSN journal
00402508
Volume
48
Issue
6
Year of publication
1993
Pages
20 - 23
Database
ISI
SICI code
0040-2508(1993)48:6<20:NOTCOH>2.0.ZU;2-E
Abstract
The noise immunity of quasicoherent receivers depends to a considerabl e extent on the accuracy with which the reference-voltage setting syst em (RVS) operates. One of the sources of phase jitter at the output of the RVS loop is heterodyne noise. The problems involved in normalizin g the noise characteristics of heterodynes for digital radio-communica tions systems with phase modulation were considered in [1, 2], where t heoretical relations were given for normalizing the noise characterist ics of microwave heterodynes for high-speed digital radio communicatio ns systems with multiposition quadrature amplitude modulation.