Аnalysis of the vibration microaccelerations onboard of the International Space Station

We describe the results of the analysis of the vibration residual accelerations onboard of the International Space Station (ISS). The investigation was realized basing on the measurements of the low-frequency accelerometer MAMS and the high-frequency one SAMS. We picked out 6 data segments obtained in 2005, in which the station was flying in the nominal orbital attitude, the engines were switched off and the crew was resting. We analyzed the discrete and the continuous spectrums of these segments. We found the most significant disturbances with the discrete spectrum (cyclic trends) and, basing on the autoregression models of the 2-nd order, we estimated parameters of the most significant disturbances with the continuous spectrum. The analysis was carried out under the technical experiment “ISS Environment”.