Wavelet-based method for signal acquisition in GNSS receivers

Author

Chang, Chung-Liang ; Shou, Ho-Nien ; Juang, Jyh-Ching

Author_Institution

Dept. of Biomechatronics Eng., Nat. Pingtung Univ. of Sci. & Technol., Pingtung, Taiwan

fYear

2010

fDate

18-21 Aug. 2010

Firstpage

1261

Lastpage

1264

Abstract

A novel method is proposed to acquire the signal parameters for Global Navigation Satellite System (GNSS). This method utilizes discrete wavelet transform (DWT) to divide the wavelet space, indicating that the wavelet transform is better in de-correlation ability and signal acquisition performance. Simulations and experiments demonstrate that the proposed method can improve performance in shorten acquisition time and lower computation complexity as opposed to traditional fast Fourier transform (FFT) based methods.

Keywords

computational complexity; discrete wavelet transforms; receivers; satellite navigation; signal detection; GNSS receivers; computation complexity; de-correlation ability; discrete wavelet transform; global navigation satellite system; signal acquisition; signal parameters; wavelet space; wavelet-based method; Complexity theory; Discrete wavelet transforms; Filter bank; Frequency domain analysis; Global Navigation Satellite Systems; Global Positioning System; Search methods; FFT; GNSS; discrete wavelet transform;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE Annual Conference 2010, Proceedings of

Conference_Location

Taipei

Print_ISBN

978-1-4244-7642-8

Type

conf

Filename

5602648