Adaptive smoothing ofFrequency Response Functions inDigital Spectral Analysers

Weclaim inthis paperthat, inmanyapplications, the non-parametric measurement offrequency response functions canbe greatly improved byadaptive smoothing inthefrequency domain. Adaptive smoothing aimsatfinding theoptimal balance between bias andvariance errors atanyfrequency, depending onwhether accuracy orprecision islocally ofconcern. Ourapproach isbased onagen- eralisation oftheweighted overlappe…