Referenced Items are not available for this document.
The probability density function of the Doppler shift in a LEO satellite spot beam has been found for both a circular and elliptical shaped spot beam. The Doppler PDF was used as a priori information in order to achieve better mean acquisition time which is critical in any LEO satellite communication system. It is shown that the Doppler PDF can be very well approximated by a parabola-shaped function. The direct approach is used for the calculation of the mean acquisition time while various searching strategies of the Doppler ambiguity area are analysed and simulated using the parabolic Doppler PDF. The overall analysis shows that the use of the Doppler PDF combined with an appropriate search strategy can reduce the mean acquisition time significantly
Published in:
Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th
(Volume:5
)
Date of Conference: 1999
- Page(s):
- 2711 - 2715 vol.5
- Meeting Date :
- 19 Sep 1999-22 Sep 1999
- ISSN :
- 1090-3038
- Print ISBN:
- 0-7803-5435-4
- INSPEC Accession Number:
- 6521012
- Conference Location :
- Amsterdam
- Digital Object Identifier :
- 10.1109/VETECF.1999.800279
- Product Type:
- Conference Publications
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