Title :
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
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;
Conference_Titel :
SICE Annual Conference 2010, Proceedings of
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-7642-8
