Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering

Research of All Digital Demodulation Technology for QPSK

Authors
Huiying Zhang, Hongzuo Li, Ting Zhao, Ruijing Xie
Corresponding Author
Huiying Zhang
Available Online April 2015.
DOI
10.2991/meic-15.2015.13How to use a DOI?
Keywords
QPSK; digital demodulation; carrier synchronization;symbol synchronization;FPGA
Abstract

The principle of QPSK modulation and demodulation is described and the detailed explanation and theoretical on DDC, carrier synchronization and bit synchronization principle is analyzed. A QPSK digital demodulation structure based on FPGA is proposed after detailed theoretical derivation for Costas loop carrier synchronization module.The entire system is completed on a single FPGA and use the Verilog programming language in Modelsim platform to simulate its function. Finally, a system test platform is built and the demodulated pattern is observed by an oscilloscope. The test result shows that the designed system can meet the basic requirements.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
Series
Advances in Engineering Research
Publication Date
April 2015
ISBN
978-94-62520-62-2
ISSN
2352-5401
DOI
10.2991/meic-15.2015.13How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Huiying Zhang
AU  - Hongzuo Li
AU  - Ting Zhao
AU  - Ruijing Xie
PY  - 2015/04
DA  - 2015/04
TI  - Research of All Digital Demodulation Technology for QPSK
BT  - Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 50
EP  - 53
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-15.2015.13
DO  - 10.2991/meic-15.2015.13
ID  - Zhang2015/04
ER  -