Aerospace Instrument-Making Annotation << Back Peculiarities of application 3-power gyro GPA-L2-2 in the circuit controlling the KA orientation of the spacecraft Nehamkin L.I. Ryabikov V.S. Svirina M.A. Shcheglova N.N. The article is devoted to consideration the circuit controlling the orientation of the spacecraft (SC) in the orbital coordinate system. It uses the principle of corrected strapdown inertial system (SISs). The loop includes 3-axis redundant angular velocity sensor (AVS) and external sensor information about the angular position of the space-craft. AVS gyro is used. It includes three 3-power gyro GPA-L2-2, working in two-axis mode, APS, as the angular position sensor – the star type instrument BOKZ-M, which is used in a 3-axis and 2-axis scanning measurement modes. It provides a block diagram of the system algorithms, evaluation accuracy SISs and simulation results of a closed control system. Key words: circuit controlling, the spacecraft, angular velocity sensor, gyro, the star type instrument, al-gorithm, evaluation accuracy. Contacts: E-mail: SheglovaNN@yandex.ru Pp. 35-43.