Detecting and estimating the fundamental of harmonics series when the number of harmonics is unknown

The problem of detecting and estimating the fundamental of an harmonic series in additive noise is often encountered in signal processing. Hinich has proposed a solution: the “harmogram”. We first show the problems encountered with Hinich´s harmogram. Then we propose some solutions to:-avoid the need of knowing the harmonics number;-improve the probability of detection when the fundamental is not a multiple of the inverse of the data number without increasing complexity