Accurate Parameter Estimation from a Complex Sinusoid-Pair: An Application in Power Systems

摘要

A method for accurate signal parameter estimation from a complex sinusoid-pair is described. The method uses spectral decorrelation to avoid bias resulting from the presence of multiple sinusoids. A hybrid estimation method that reaches optimum bounds for any data length in the presence of both low and high noise power is also shown. The method is useful in power system applications.