Research on TWACS Interference Suppression Based on the RLS Algorithm

Abstract:

Article Preview

TWACS (Two Way Automatic Communication System) has advantages such as economical and practical use, strong interference capability, long transmission distance and so on. But the noise in China's industrial distribution power grid owns the characters of strong interference randomness and even annihilation of the modulated signal. So the noise has a negative impact on power line communication performance. While the adaptive filter does not need to know in advance on the statistical characteristics of the input signal and noise, and has nothing to do with the spectral characteristics of the input signal. Based on this, it’s premised that the modulation signal is basically known, and the signal beyond modulation domain is regarded as reference signal to design an adaptive filter applied to TWACS by referring to the block diagram of the adaptive filter model to adjust the variable parameters of the RLS algorithm. Finally, the field test signal simulations show good effect of the adaptive filter design

Info:

Periodical:

Edited by:

Mohamed Othman

Pages:

1560-1563

Citation:

M. Chen et al., "Research on TWACS Interference Suppression Based on the RLS Algorithm", Applied Mechanics and Materials, Vols. 229-231, pp. 1560-1563, 2012

Online since:

November 2012

Export:

Price:

$38.00

[1] Zhou Shiwei, Zhang Shaoqing. Realization of two way fundamental frequency communication for power distribution networks. 1999. 23(10), pp.37-38.

[2] Zhao Jie, Liu Dichen, Wang Jing. Analysis on Signal Influence Factor of Two-way Automatic Communication System. 2009, 25(7), pp.34-37.

[3] Zhang Shaoqing, Zhou Shiwei, Hong Wenxue. Two- Way Automatic Communication System for Power Distribution Networks. 1999(4), pp.67-71.

[4] Li Zhengzhou: Digital signal processing and applications. (Tsinghua University Press, Beijing 2008).

[5] Xie Shengli, He Zhaoshui, Gao Ying: Adaptive theory of signal processing. (Science Press Beijing 2006).

[6] Luo Wenchao, Zhang Youchun. The realization of FIR adaptive filter based on RLS algorithm in MATLAB. 2008, 7 (1), pp.107-108.