Title :
A fast algorithm for blind estimation of frequency domain parameters of Direct Sequence Spread Spectrum signal
Author :
Zou, Ping ; Lv, Ming
Author_Institution :
Electron. Eng. Sch., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
According to the power spectral characteristics of Direct Sequence Spread Spectrum (DS/SS) signal, an algorithm based on Welch method was developed for fast blind estimation of carrier frequency and main lobe width. Simulation results show that this algorithm can estimate carrier frequency more accurately and main lobe width roughly when Signal to Noise Ratio (SNR) is down to -19 dB. Comparing with Welch method, it has significantly improved the accuracy of carrier frequency estimation.
Keywords :
blind source separation; frequency estimation; spread spectrum communication; Welch method; blind estimation; carrier frequency estimation; direct sequence spread spectrum signal; frequency domain parameters; Frequency domain analysis; Frequency estimation; Spread spectrum communication; DS/SS signal; Signal to Noise Ratio (SNR); Welch method; blind estimation; carrier frequency; main lobe width; relative estimation error;
Conference_Titel :
Communications Technology and Applications, 2009. ICCTA '09. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4816-6
Electronic_ISBN :
978-1-4244-4817-3
DOI :
10.1109/ICCOMTA.2009.5349165
