Detecting spectrally localized components of lunar tide-frequency in   time-series of the electric field vertical component of the earth atmosphere   boundary layer
  Using the signal eigenvectors and components analyser (Grunskaya L.V., Isakevich V.V., Isakevich D.V. the RF Utility Model Patent 116242 of 30.09.2011) made it possible to detect non-coherent complex-period components localized at lunar tide frequencies in the time-series of the electric field vertical component of the Earth atmosphere boundary layer. The detected components are unobservable by means of spectral analysis quadrature scheme. The probability of the detected effects being pseudo-estimates is not more than 0.00025 
V. V. Isakevich, L.V. Grunskaya, D.V. Isakevich
physics.gen-ph