Title :
An accurate estimation algorithm of frequency and phase at low signal-noise ratio levels
Author :
Ye, Zhan ; Xu, Guangfei ; Guo, Daoxing
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
A new accurate estimation algorithm of frequency and phase suited for low signal-noise ratio (SNR) environment is proposed here. Coarse estimation of frequency and phase is acquired from the peak frequency of the received signal. New interpolation technique and modified formula are made to get fine and unbiased estimation. Simulations indicate that, accurate results close to the Cramer-Rao bound (CRB) within a wide frequency offset range are achieved by using this algorithm.
Keywords :
frequency estimation; interpolation; phase estimation; signal processing; Cramer-Rao bound; SNR environment; estimation algorithm; frequency estimation; frequency offset range; interpolation; peak frequency; phase estimation; received signal; signal-noise ratio; Estimation error; Frequency estimation; Interpolation; Signal to noise ratio; Simulation; accurate; frequency estimation; interpolation; low SNR; phase estimation;
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2010 International Conference on
Conference_Location :
Suzhou
Print_ISBN :
978-1-4244-7556-8
Electronic_ISBN :
978-1-4244-7554-4
DOI :
10.1109/WCSP.2010.5631875
