DocumentCode :
275177
Title :
Design of low-cost, long range radio communication systems
Author :
Darnell, M. ; Honary, B.
Author_Institution :
Hull Warwick Communications Res. Group, Hull Univ., UK
fYear :
1990
fDate :
29-31 Oct 1990
Firstpage :
111
Lastpage :
114
Abstract :
The technology applied in long-range, beyond line-of-sight (BLOS) radio system implementation has generally advanced less rapidly. However, low-cost transceivers and powerful digital signal processing (DSP) devices are now available for incorporation into long-range systems operating in the HF/VHF frequency range. Such radio systems should be available at a cost affordable by developing nations. The primary interest of the Hull-Warwick Communications Research Group (HWCRG) is in the design and implementation of BLOS radio systems operating at the lower end of the radio spectrum up to about 100 MHz. This part of the spectrum is a valuable natural resource but, in many respects, is still used inefficiently and ineffectively. The authors outline a range of propagation media and transmission techniques which can form the basis of economic and efficient BLOS communication systems. The techniques discussed are compatible with DSP implementation and systems with mobile terminals
Keywords :
computerised signal processing; diversity reception; economics; radio links; radio systems; radiowave propagation; DSP implementation; HF/VHF frequency range; Hull-Warwick Communications Research Group; beyond line-of-sight; design; digital signal processing; diversity combining; long range radio communication systems; low-cost transceivers; propagation media; transmission techniques;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Rural Telecommunications, 1990. Second International Conference on
Conference_Location :
London
Type :
conf
Filename :
114525
Link To Document :
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