Error research of attitude measurements on low-cost UAV-borne missile

Abstract

The framed gyroscope can significantly reduce the cost of missile. However, the gyroscope error problem restricts the acquisition probability and guidance precision of air-to-ground missile. A gyroscope error compensation method based on Taylor series formula is proposed in this paper. Gyro output error sources are analysed in detail, and the gyro output error model of unmanned aerial vehicle load space missile is established, and the mathematical relationship between missile attitude angle and the gyroscope output is deduced. Through the gyroscope on three-axis turntable hardware-in-the-loop simulation test, the correctness and effectiveness of the gyro error model established is verified. The test results show that the proposed error compensation method can control yaw attitude angle error and oblique attitude angle error of UAV-borne missile within 1° respectively in 20 s, and easy to project implementation.