Performance Assessment of GSO Satellite before and after Enhancing Pointing Effect
This paper presents the effect of the orbit inclination
on the pointing error of the satellite antenna and consequently on its
footprint on earth for a typical Ku- band payload system. The performance assessment is examined using both analytical
simulations and practical measurements, taking into account all the
additional sources of the pointing errors, such as East-West station
keeping, orbit eccentricity, and actual attitude control performance. An implementation and computation of the sinusoidal biases in
satellite roll and pitch used to compensate the pointing error of the
satellite antenna coverage is studied and evaluated before and after
the pointing corrections performed. A method for evaluation of the performance of the implemented
biases has been introduced through measuring satellite received level
from a mono-pulse tracking 11.1m transmitting antenna before and
after the implementation of the pointing corrections.
[1] Satellite Communication Systems, Techniques and Technology, Fifth
Edition, Gerard Maral - Michel Bousquet, 2009 John Wiley & Sons Ltd.
[2] G. Maral, M. Bousquet. “Satellite Communication Systems” John Wiley
and sons, ltd., 4th Edition, (2002).
[3] B. G. Evans ed. “Satellite Communication Systems”, IEE
Telecommunications Series, 3rd Edition, (1999).
[4] Srivastava S. K., Orbital perturbations and stationkeeping of
communication satellites, J. Spacecraft Rockets 15 (1978) 67–78.
[5] Pocha J. J., in: An Introduction to Mission Design for Geostationary
Satellites, D. Reidel, Dordrecht, 1987, pp. 103–111.
[6] Airbus space system document,
"NILG.TN.10055.DP.T.ASTR_01_ADCS Operations Synthesis", 2015.
[1] Satellite Communication Systems, Techniques and Technology, Fifth
Edition, Gerard Maral - Michel Bousquet, 2009 John Wiley & Sons Ltd.
[2] G. Maral, M. Bousquet. “Satellite Communication Systems” John Wiley
and sons, ltd., 4th Edition, (2002).
[3] B. G. Evans ed. “Satellite Communication Systems”, IEE
Telecommunications Series, 3rd Edition, (1999).
[4] Srivastava S. K., Orbital perturbations and stationkeeping of
communication satellites, J. Spacecraft Rockets 15 (1978) 67–78.
[5] Pocha J. J., in: An Introduction to Mission Design for Geostationary
Satellites, D. Reidel, Dordrecht, 1987, pp. 103–111.
[6] Airbus space system document,
"NILG.TN.10055.DP.T.ASTR_01_ADCS Operations Synthesis", 2015.
@article{"International Journal of Electrical, Electronic and Communication Sciences:71654", author = "A. E. Emam and Joseph Victor and M. Abd Elghany", title = "Performance Assessment of GSO Satellite before and after Enhancing Pointing Effect", abstract = "This paper presents the effect of the orbit inclination
on the pointing error of the satellite antenna and consequently on its
footprint on earth for a typical Ku- band payload system. The performance assessment is examined using both analytical
simulations and practical measurements, taking into account all the
additional sources of the pointing errors, such as East-West station
keeping, orbit eccentricity, and actual attitude control performance. An implementation and computation of the sinusoidal biases in
satellite roll and pitch used to compensate the pointing error of the
satellite antenna coverage is studied and evaluated before and after
the pointing corrections performed. A method for evaluation of the performance of the implemented
biases has been introduced through measuring satellite received level
from a mono-pulse tracking 11.1m transmitting antenna before and
after the implementation of the pointing corrections.", keywords = "Satellite, inclined orbit, pointing errors, coverage
optimization.", volume = "9", number = "12", pages = "1434-7", }