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2011 International Conference of Information Technology, Computer Engineering and Management Sciences
The Design and Simulation of Synchronization System Based on the QPSK High-Speed Demodulator
Nanjing, China
September 24-September 25
ISBN: 978-0-7695-4522-6
ASCII Text
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Yu-lan Chen, Ling Zhu, Han-yan Huang, "The Design and Simulation of Synchronization System Based on the QPSK High-Speed Demodulator," Information Technology, Computer Engineering and Management Sciences, International Conference of, vol. 2, pp. 76-79, 2011 International Conference of Information Technology, Computer Engineering and Management Sciences, 2011.
 
 
BibTex
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@article{ 10.1109/ICM.2011.327,
author = {Yu-lan Chen and Ling Zhu and Han-yan Huang},
title = {The Design and Simulation of Synchronization System Based on the QPSK High-Speed Demodulator},
journal ={Information Technology, Computer Engineering and Management Sciences, International Conference of},
volume = {2},
year = {2011},
isbn = {978-0-7695-4522-6},
pages = {76-79},
doi = {http://doi.ieeecomputersociety.org/10.1109/ICM.2011.327},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
x 
 
TY - CONF
JO - Information Technology, Computer Engineering and Management Sciences, International Conference of
TI - The Design and Simulation of Synchronization System Based on the QPSK High-Speed Demodulator
SN - 978-0-7695-4522-6
SP76
EP79
A1 - Yu-lan Chen,
A1 - Ling Zhu,
A1 - Han-yan Huang,
PY - 2011
KW - QPSK digital Demodulation
KW - the Costas Lock
KW - Carrier synchronization
KW - Symbol Synchronization
KW - the GARDNER Algorithm
VL - 2
JA - Information Technology, Computer Engineering and Management Sciences, International Conference of
ER -
 
With the development of the space industry in China, the demands for transmit rate from satellites to receivers on the ground is getting higher and higher. In order to meet the demands of high-speed transmit rate on Satellite Communication, the article puts forward the structure and design to the QPSK high-speed demodulator based on the Costas Algorithm and Gardner Algorithm. The improvement make the Lock have the characteristics of saw tooth-shaped phase detect based on the Costas Lock, which reduce the "delay" in the whole circuit. There are just 6 signals and 6 decisions in the process to get the error required. And it just needs 2 symbol decisions. The article also uses the GARDNER Algorithm which needn't decision feedback or training sets in the design of the QPSK demodulation system. The design of QPSK demodulation system has been proved the reasonability via the simulation under the parallel structure.
Index Terms:
QPSK digital Demodulation, the Costas Lock, Carrier synchronization, Symbol Synchronization, the GARDNER Algorithm
Citation:
Yu-lan Chen, Ling Zhu, Han-yan Huang, "The Design and Simulation of Synchronization System Based on the QPSK High-Speed Demodulator," icm, vol. 2, pp.76-79, 2011 International Conference of Information Technology, Computer Engineering and Management Sciences, 2011
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