Title :
Estimation of parameters of two sine signals with common frequency
Author_Institution :
Fac. of Electr. Eng., Univ. of Ljubljana, Ljubljana, Slovenia
Abstract :
In this paper, simple algorithms for fast estimation of the amplitude ratio and the phase difference of the sinusoidal signals from two channels with the same frequency are presented. Parameters are calculated from the DFT coefficients around the component peaks. The idea of the systematic error reduction with the weighted amplitude and phase DFT coefficients is used in the comparative measurement procedure.
Keywords :
channel estimation; discrete Fourier transforms; phase estimation; DFT coefficients; amplitude ratio; common frequency; comparative measurement procedure; fast estimation; phase difference; sine signals; systematic error reduction; Amplitude estimation; Discrete Fourier transforms; Frequency estimation; Frequency measurement; Parameter estimation; Phase estimation; Phase measurement; Sampling methods; Signal resolution; Time measurement; DFT; amplitude ratio; phase difference; weighted coefficients;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2010 IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4244-2832-8
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2010.5488187
