Title :
Estimating Parameters of Complex Modulated Signals from Prior Information about Their Arbitrary Waveform Components
Author :
Kyriazis, Gregory A.
Author_Institution :
Inst. Nac. de Metrol., Qualidade e Tecnol. (Inmetro), Caxias, Brazil
Abstract :
A simple method for estimating the parameters of complex modulated signals from digital sampling data is proposed. It can be employed with advantage to analyze the modulation functions of commercial arbitrary waveform (AW) generators. Although this problem of inference has many applications in communication technology, it has also become a concern to the power industry in issues related to mains flicker measurements. Prior information available to metrologists about AW carriers or modulating signals allows the reduction of the dimensionality of the search algorithm with consequent time savings.
Keywords :
modulation; parameter estimation; signal sampling; voltage measurement; waveform generators; AW; arbitrary waveform generator; complex modulated signal function; digital sampling data; flicker measurement; inference problem; metrologist; parameter estimation; power industry; Frequency estimation; Frequency shift keying; Generators; Mathematical model; Uncertainty; Bayes methods; calibration; flicker; modulation; sampling methods; signal analysis;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2013.2238017