EBPSK Demodulation Analysis Based on Second-order Phase Locked Loop

Qi Chen-hao; Chen Guo-qiang; Wu Le-nan

doi:10.3724/SP.J.1146.2007.01325

Volume 31 Issue 2

Dec. 2010

Turn off MathJax

Article Contents

Article Navigation > Journal of Electronics & Information Technology > 2009 > 31(2): 418-421

Qi Chen-hao, Chen Guo-qiang, Wu Le-nan. EBPSK Demodulation Analysis Based on Second-order Phase Locked Loop[J]. Journal of Electronics & Information Technology, 2009, 31(2): 418-421. doi: 10.3724/SP.J.1146.2007.01325

Citation:

Qi Chen-hao, Chen Guo-qiang, Wu Le-nan. EBPSK Demodulation Analysis Based on Second-order Phase Locked Loop[J]. Journal of Electronics & Information Technology, 2009, 31(2): 418-421. doi: 10.3724/SP.J.1146.2007.01325

Citation:

PDF( 237 KB)

EBPSK Demodulation Analysis Based on Second-order Phase Locked Loop

doi: 10.3724/SP.J.1146.2007.01325

Received Date: 2007-08-15
Rev Recd Date: 2007-12-06
Publish Date: 2009-02-19

Abstract

Abstract

High efficiency modulation and demodulation techniques are significant for data transmission. Based on present EBPSK transmission system, a kind of demodulation method that employs a second-order PLL with its PD output structure is discussed in the paper. Firstly, PLL linear model is established in order for the comparative analysis between phase step error response and phase rectangular-pulse error response under different damping ratio. The ideal PD waveform expression is figured out. And then in case of narrow bandwidth Gauss noise condition, an optimal integral length for EBPSK demodulation is explored, with its corresponding simulation results. Finally it is demonstrated by simulations that, once PLL is capable of retrieving tracking state from capturing state in some SNR condition, effective EBPSK demodulation is available.

FullText(HTML)

References(1)

References

吴乐南, 张士凯. 统一的二元相位调制和解调方法. 中国发明公开号: CN 1889550A, 2007.[2]李小平, 吴乐南. VWDK 调制的波形优化[J].电子与信息学报.2005, 27(11):1714-1716浏览[3]Qi Chenhao Feng Man and Wu Lenan. Analysis oftransmission system based on phase locked loop[J].The thirdInternational Conference on Natural Computation(ICNC07), Hainan, China.2007, 2:415-419[4]戚晨皓, 吴乐南, 张仕元. 基于复合调制方式的AM 广播. 应用科学学报, 2007, 25(5): 451-455.[5]Haykin S. Communication Systems. 4th ed.[J].New York: JohnWiley Sons.2001,:-[6]Best R E. Phase-Locked Loops: Design, Simulation, andApplications (Professional Engineering), Fifth Edition, NewYork: McGraw-Hill, 2003: 157-165.[7]Thompson I V and Brennan P V. Fourth-order PLL loopfilter design technique with invariant natural frequency andphase margin[J].Proc. IEE Circuits, Devices and Systems.2005,152:103-108[8]张厥盛, 郑继禹, 万心平. 锁相技术. 西安: 西安电子科技大学出版社, 2004: 29-31.[9]Proakis J G. Digital Communications. Fourth Edition, NewYork: McGraw-Hill, 2002: 169-176.[10]Anders J and Mathis W. Simulation techniques fornoise-analysis in the PLL design process. IEEE InternationalSymposium on Circuits and Systems, Greece, 2006:4066-4069.[11]屈强等. 软件锁相环的设计与应用. 遥测遥控, 2007, 28(1):10-14.

Relative Articles

Supplements(0)

Cited By

Proportional views