radiotidsignal
Radiotidsignal is a term used in radio science to describe a class of quasi-periodic modulations observed in radio frequency data that are linked to tidal forcing of the upper atmosphere and ionosphere. The name combines radio and tidal signal, and it is used to refer to changes in amplitude or phase of a radio signal that follow known tidal periodicities rather than being produced by a dedicated transmitter.
Characteristics of radiotidsignal include its association with diurnal and semidiurnal cycles, reflecting solar and atmospheric tides
Detection and analysis typically involve time-series analysis and spectral methods. Researchers apply Fourier transforms, wavelet analyses,
Origins and relation to other phenomena: radiotidsignal is considered environmental in origin, arising from ionospheric electron-density
Applications and significance: understanding radiotidsignal can improve models of radio propagation, aid calibration in radio astronomy