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《Journal of Circuits and Systems》 2001-04
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A Sine Wave Frequency Estimator with Improved Precision in Low Signal-to-Noise Rate

ZHU Xue-tian , PENG Yu-hua, ZHOU Zheng, YU Dai-feng ( Deparment of Electronic Engineering, Shangdong University,JiNan 250061, China )  
Trapped by the drawback of double-line maximum matching algorithm, based on extensive investigation of the nature of DFT coefficients, a new accurate frequency estimator for sinusoid wave in low signal-to-noise rate is proposed. The simulation results show that the new algorithm possesses higher precision and less computational complexity. Therefore, it is a promising algorithm for practical applications.
【CateGory Index】: TN911.6
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