Spectral Correlation Analysis for Tidal Gravity Signal
In the analysis of tidal gravity signal, the method based on cyclostationary signal analysis has gradually been paid attention to people. This paper analyzes tidal gravity signal by using the method of spectral correlation analysis, it mainly analyzes the intermodulation relationship of year-wave, month-wave, half-month wave and half-daily wave in tidal gravity signal, to achieve the purpose of tidal gravity signal being demodulated. Through simulation and analysis based on spectral correlation demodulation’s method, we can effectively demodulate the relationship of year-wave, month-wave, half-month wave, and half-daily wave. Finally, through processing and analysis of experimental data, it shows that intermodulation between year-wave and daily-wave, besides it is the same as month-wave and half-daily wave.