Fig. 15From: Experimental study on improving the accuracy of marine gravimetry by combining moving-base gravimeters with GNSS antenna arrayFourier time–frequency analysis of vertical accelerations. a and c are the single-sided amplitude spectra of the vertical acceleration of X1-3 and H1-1, respectively; the small windows are enlarged views of the low-frequency band. b and d are the corresponding time-domain vertical accelerationsBack to article page