DocumentCode :
2207406
Title :
HF skywave elevation angle measurements as a diagnostic tool
Author :
George, P.L. ; Jeffrey, Z.R.
Author_Institution :
AWA Defence Ind. Pty. Ltd., Australia
fYear :
1994
fDate :
4-7 Jul 1994
Firstpage :
124
Lastpage :
128
Abstract :
Accurate measurement of elevation angle on skywave paths is routinely and cost effectively available from such instruments as the CELTIC HFDF/SSL system. In addition super-resolving techniques are becoming available which are able to resolve mixed propagation modes on quite short transmissions. Since it is practical to build digitally adaptive transmit systems, it is now appropriate to ask whether a tailored HF skywave link could be constructed which could be steered to the desired propagation mode in an adaptive fashion. The paper investigates the functionality of such a system, proposes a broad engineering solution and assesses the advantages of such an implementation
Keywords :
adaptive systems; antenna phased arrays; ionospheric electromagnetic wave propagation; radio links; radio transmitters; radiowave propagation; telecommunication channels; HF skywave elevation angle measurements; diagnostic tool; digitally adaptive transmit systems; mixed propagation modes; short transmissions; super-resolving techniques; tailored HF skywave link;
fLanguage :
English
Publisher :
iet
Conference_Titel :
HF Radio Systems and Techniques, 1994., Sixth International Conference on
Conference_Location :
York
Print_ISBN :
0-85296-616-4
Type :
conf
DOI :
10.1049/cp:19940478
Filename :
337003
Link To Document :
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