Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Comparison of the Spectral Characteristics of the Measured and Restored Signals When Evaluating the Angular Speed of Rotation of the Experimental Sample of the Small Space Vehicle «Aist» With the Use of the Research Before Source A.V. SEDELNIKOV, T.A. IVASHOVA, S.L. SAFRONOV, M.A. IVANUSHKIN, S.S. VOLGIN The paper studies the spectral characteristics of discrete and reconstructed continuous data of current from solar panels of a prototype small spacecraft Aist. The correctness of replacing discrete data with a restored continuous signal is analyzed when evaluating the angular velocity of rotation of the prototype of the small spacecraft Aist. The angular velocity was estimated from the current data during the period of inoperability of standard measuring instruments (magnetometers) after the degradation of the storage battery of the prototype of the small spacecraft Aist. Keywords: small spacecraft, data of current, spectral characteristics, parameters of rotational motion. DOI: 10.25791/pribor.02.2020.1148 Pp. 21-28.