Title :
Wavelet-based method for weak satellite signal acquisition
Author :
Lei, Nana ; Zhu, Hao ; Cui, Jianyong
Author_Institution :
Sch. of Inf. Eng., Zhengzhou Univ., Zhengzhou, China
Abstract :
A novel method of differential coherent integration (DFC) algorithm combined with wavelet transform is proposed to acquire the weak global positioning system (GPS) signal parameters. The paper compared this proposed method with the traditional weak satellite signal acquisition algorithms to verify its feasibility. This method utilizes wavelet de-noising for the result of DFC to improve the Signal-to-Noise ratio (SNR) of acquisition process. Simulations demonstrate that the proposed method is better than DFC in obtaining larger acquisition output SNR.
Keywords :
Global Positioning System; satellite communication; signal denoising; signal detection; wavelet transforms; differential coherent integration algorithm; signal-to-noise ratio; wavelet denoising; wavelet transform; wavelet-based method; weak global positioning system signal parameters; weak satellite signal acquisition; Correlation; Global Positioning System; Noise reduction; Satellites; Signal to noise ratio; Wavelet transforms; DFC; GPS; SNR; acquisition; wavelet de-noising;
Conference_Titel :
Transportation, Mechanical, and Electrical Engineering (TMEE), 2011 International Conference on
Conference_Location :
Changchun
Print_ISBN :
978-1-4577-1700-0
DOI :
10.1109/TMEE.2011.6199726
