Application of NDLMS Algorithm in Demodulation for DPSK Signal

Author

Zeng Xiaohong ; Zeng Chun

Author_Institution

Dept. of Commun. Eng., Chongqing Coll. of Electron. Eng., Chongqing, China

fYear

2011

Firstpage

1

Lastpage

4

Abstract

This paper proposed a demodulation method for modulated DPSK (differential phase-shift keying) signal using self-adaptation algorithm NDLMS. The performance of this demodulation method is analyzed by SystemView simulation tool. To deal with the problem of failure of small SNR lower threshold, error signal is used to improve the threshold judgment quality. The simulation results indicate that the self-adaptation demodulation method can be easily implemented in digital with good bit error rate performance.

Keywords

demodulation; differential phase shift keying; error statistics; least mean squares methods; signal processing; System View simulation tool; bit error rate performance; error signal; modulated DPSK signal demodulation method; modulated differential phase-shift keying signal demodulation method; self-adaptation NDLMS algorithm; self-adaptation normalized decorrelation least mean square algorithm; small SNR lower threshold; threshold judgment quality; Band pass filters; Demodulation; Differential phase shift keying; Filtering algorithms; Low pass filters; Signal processing algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on

Conference_Location

Wuhan

ISSN

2161-9646

Print_ISBN

978-1-4244-6250-6

Type

conf

DOI

10.1109/wicom.2011.6040193

Filename

6040193