Interharmonics from a probabilistic perspective

Some of the most remarkable issues related to interharmonics observed from a probabilistic perspective are presented. Attention is firstly devoted to interharmonic frequency and amplitude variability. Starting from the basic mathematical and computational aspects of probabilistic harmonic models, the difficulties to include interharmonics are discussed with particular attention to the problem of the frequency resolution and of the computational burden. Then, simulation and measurement aspects are discussed, also showing some numerical and experimental results.