Actas de congresos
Power Reduction On Qpsk Modulation Codings For Geopositioning Application Using Leo Satellites
Registro en:
9781424453566
Sbmo/ieee Mtt-s International Microwave And Optoelectronics Conference Proceedings. , v. , n. , p. 282 - 285, 2009.
10.1109/IMOC.2009.5427582
2-s2.0-77951729947
Autor
Marins C.N.M.
Kaufmann P.
Ferreira Jr. A.A.
De Paiva M.C.
Swart J.W.
Da Silveira A.C.
Institución
Resumen
Minimum transmission power using transponders in low earth orbit satellite is a major requirement for the new geo-positioning system, known as Geolocal. It utilises a repeater in space and ground-based precise geodetic reference bases. We discuss and compare two digital codings on the QPSK (quadrature phase shift keying) modulation: concatenated Reed-Solomon/Convolutional Coding and concatenated BCH (Bose-Chaudhuri-Hocquenghem) with LDPC (Low Density Parity Code). We show that the latter brings 8 dB power gain on the whole two-way ground to satellite link allowing a reduction in the power requirements on the small platforms carrying the ttransponders. ©2009IEEE.
282 285 Kaufmann, P., Da Silveira, A.C., Geolocal: New space telecommunication concept for remote positioning and navigation (2004) Proc. of the IWT/2004 - International Workshop on Telecommunications, Santa Rita Do Sapucaí, MG, Brazil, August 23-27, 2004, pp. 69-72 Kaufmann, P.L., De Moraes, R.V., Kuga, H.K., Beraldo, L.A., Marins, C.N.M., Kaufmann, P., Non recursive algorithm for remote geolocation using ranging measurements (2006) Math Problems Engineering, Mathematical Problems in Engineering, , Article 1D79389,2006,doi:10.1155/MPE/2006/79389 Marins, C.N.M., Digital Telecommunication Ranging Network for New Geopositioning Demonstration Proc. MOMAG 2006, 12th. SBMO Brazilian Society of Microwaves and Optoelectronics and 7th. Brazilian Electromagnetic Meeting, Belo Horizonte, MG, Brazil, 8-10 August, 2006 Geographic and space positioning system and process (2009), US Patent Nr. 752877B2, issued MarchGeographic and space positioning system and process (2009), Brazil Patent PI 03003968-4, Filed 08.10.2003, and International Patent Cooperation Treaty PCT/BR2004/000190, Filed 04.10.2004, US 7528777B2 05 May(1990) Proc. IEEE Position Location and Navigation Symposium, 1988, , M. Kayton (editor), reprinted from "Navigation: Land, Sea, Air & Space ", , IEEE Press, Selected Reprint Series, IEEE Aerospace and Electronic System Society, New York, USA Guier, W.H., Weiffenbach, G.C., Theoretical analysis of Doppler radio signals from Earth satellites (1958) Nature, 181, pp. 1525-1526 Kouba, J., REVIEW of GEODETIC and GEODYNAMIC SATELLITE DOPPLER POSITIONING (1983) Reviews of Geophysics and Space Physics, 21 (1), pp. 27-40 Barlier, F., The DORIS system: A fully operational tracking system to get orbit determination at centimeter accuracy in support of Earth observations (2005) Comptes Rendus Geosciences, 337 (14), pp. 1223-1224. , October-November 2005 (1987) Guide to GPS Positioning, , D. Wells, (editor), Canadian GPS Association, N. Brunswick, Canada Cariveau, B.K., Therkelsen, K.L., Satellite data management in DoD NAVSTAR GPS receivers Proceedings of IEEE Position Location and Navigation Symposium (PLANS '88), Florida, 1988, pp. 134-144. , reprinted from Navigation: Land, Sea, Air & Space (1990), pp. 120-130. , M. Kayton, ed., IEEE Press, Selected Reprint Series, IEEE Aerospace and Electronic System Society, New YorkMarins, C.N.M., Kaufmann, P., Ferreira Jr., A.A., Lopes, P.H., De Paiva, M.C., Villela, R.M., Da Silveira, A.C., Precision Clock and Time Transfer on a Wireless Telecommunication Link (2009) IEEE Trans. Instrum. Measurements, , in press Sklar, B., (2004) Digital Communication Fundaments and Applications, , Prentice-Hall, New York Maral, G., Bousquet, M., (2002) Satellite Communication Systems: System Techniques and Technology, , John Wiley, New York Burns, P., (2002) Software Defined Radio, , Artech House, Boston, Chapter 2