Performance of lifting-circular wavelet scheme for signal acquisition in GNSS receivers

in Foreign journals(other), 國外期刊(其他)
標題Performance of lifting-circular wavelet scheme for signal acquisition in GNSS receivers
出版類型國外期刊(其他)
出版年度2013
AuthorsChung-Liang Chang, 張仲良, Chiao-En Chen ----, & J. C. Juang -----
開始頁1
頁數13
出版日期2013 / 1
其他編號0000
中文摘要

This study proposes a novel method to acquire the navigation signal parameters for Global Navigation Satellite System (GNSS). This method utilizes modified discrete wavelet transformer (MDWT) to reduce operation samples of circular convolution during signal acquisition process and to divide the wavelet space, indicating that the MDWT is better in de-correlation ability and signal acquisition performance. Besides, it can cut down the effect of noise and interference on signal acquisition performance and enhance the signal to noise ratio on the basis of priori knowledge of the signal characteristics. 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.

期刊名稱International Journal of Control Theory and Applications
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