Aerospace Instrument-Making Annotation << Back Studying the Possibility of Using Modification of the Allan Deviation to Periodicly Reducing the Random Measurement Error of a Micromechanical Accelerometer Maletin A.N., Gural D.A. This article examines the pressing scientific challenge of reducing the random measurement error of a micromechanical accelerometer using a modified Allan bias without preintegrating the signal during a small spacecraft maneuver. It is proposed to periodically evaluate this measurement error during data post-processing over a specified time interval and then partially compensate for it. The error sign is determined using a simplified Allan bias formula. Ten micromechanical accelerometer tests were simulated, demonstrating a reduction in the error in nine cases. Ways to improve the developed scientific and methodological framework are proposed. Keywords: micromechanical accelerometer, random measurement error, bias instability, Allan deviation modification, scientific and methodological apparatus, preliminary integration of the signal, data post-processing. DOI: 10.25791/aviakosmos.6.2026.1565 Pp. 42-50.