Telecommunications Sensors

Antennas for Global Navigation Satellite Systems by Xiaodong Chen, Clive G. Parini, Brian Collins, Yuan Yao,

By Xiaodong Chen, Clive G. Parini, Brian Collins, Yuan Yao, Masood Ur Rehman

Content material:
Chapter 1 basics of GNSS (pages 1–19):
Chapter 2 basic concerns for GNSS Antennas (pages 21–40):
Chapter three satellite tv for pc GNSS Antennas (pages 41–53):
Chapter four Terminal GNSS Antennas (pages 55–80):
Chapter five Multimode and complex Terminal Antennas (pages 81–110):
Chapter 6 Terminal Antennas in tricky Environments (pages 111–148):
Chapter 7 Human person results on GNSS Antennas (pages 149–180):
Chapter eight cellular Terminal GNSS Antennas (pages 181–206):

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Extra resources for Antennas for Global Navigation Satellite Systems

Sample text

The receiver must search in this 20 kHz band to find detectable GNSS signals [1]. Within this band each satellite will have its own characteristic Doppler shift according to its orbital characteristics and the position of the receiver. 2 Effects of the Ionosphere The ionosphere is a layer of electrons and charged atoms and molecules (ions) that surround the Earth, stretching from a height of 50 to 1000 km. The ionosphere can be characterised by its total electron content (TEC). The TEC is influenced by solar activity, diurnal and seasonal variations, and the Earth’s Fundamental Considerations for GNSS Antennas 25 magnetic field.

R. , Handbook of microstrip antennas, Peter Peregrinus, London, 1989. 6. , Krier, M. , ‘Mobile handset system performance comparison of a linearly polarized GPS internal antenna with a circularly polarized antenna’, Proceedings of IEEE Antennas and Propagation Society International Symposium 2003, Columbus, OH, June 22–27, 2003, Vol. 3, pp. 666–669. 1 Navigation Antenna Requirements This chapter will take an overview of the antenna requirements and design techniques used for the spacecraft segment of the GPS system.

It has a 10 dB impedance bandwidth of 55 MHz and a CP bandwidth of 18 MHz.

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