A Feedback Correction De-noising Algorithm Based on the Wavelet Coefficients

作者：Li Ning^*; Cao Zhen; Deng Zhongliang

来源：Chinese Journal of Electronics, 2014, 23(3): 516-520.

• Signal processing
• Feedback correction algorithm
• Wavelet coefficients decomposition
• De-noising
• Interference sources localization

The localization of satellite interference sources under the condition of low SNR has been a hot research topic at current, where the signal de-noising is important in the following positioning work. With the help of the wavelet analysis theory, this paper proposes a de-noising algorithm based on the wavelet coefficients in low SNR. After correcting and reconstructing the signal by the correction coefficients, we could obtain the SNR and Root Mean square error (RMSE), and then we could correct the signal for the second time. The simulation results show that this de-noising algorithm can effectively remove the noise of the signal in low SNR, which would have a good effect on the estimation of time delay parameter in the localization of satellite interference sources.

• 出版日期2014-7
• 单位北京邮电大学