Digital implementation of a coherent CPM system for mobile radio

Author

Eglin, P. ; Habermann, J. ; Dzung, D.

Author_Institution

Asea Brown Boveri Corp. Res., Baden, Switzerland

fYear

1988

fDate

7-9 June 1988

Firstpage

1815

Abstract

The authors describe the digital implementation of a continuous-phase-modulation (CPM) signaling scheme for land mobile radio applications. The transmitted signal is optimized in terms of bandwidth efficiency by nonlinear filtering. In the coherent receiver, synchronization and detection are performed separately to reduce complexity and improve acquisition performance. The authors explain the principles of transmitter and receiver and give details on the implementation. It is noted that the demonstration system will be capable of transmitting data at 16 kb/s over the narrowband mobile radio channel with channel spacing of 20 kHz.<>

Keywords

digital radio systems; mobile radio systems; phase modulation; signalling (telecommunication networks); acquisition performance; bandwidth efficiency; channel spacing; coherent CPM system; coherent receiver; detection; digital implementation; land mobile radio; nonlinear filtering; synchronisation; Bandwidth; Channel spacing; Frequency synchronization; Land mobile radio; Nonlinear filters; Pulse shaping methods; Radio transmitters; Read only memory; Receivers; Shift registers;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1988., IEEE International Symposium on

Conference_Location

Espoo, Finland

Type

conf

DOI

10.1109/ISCAS.1988.15288

Filename

15288