A Servo Loop Decoupling Method for a Four-Axis Inertially Stabilized Platform System

A technology for stabilizing the platform and servo loop, applied in the field of inertial measurement, can solve the problem of incomplete controllability of the servo loop, and achieve the effects of avoiding the gain tending to infinity, accurate decoupling method, and wide applicability
CN105180936BActive Publication Date: 2017-12-22BEIJING INST OF AEROSPACE CONTROL DEVICES
2 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF AEROSPACE CONTROL DEVICES
Publication Date
2017-12-22

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A provided servo loop decoupling method of a four-axle inertial stabilization platform system comprises the following steps: 1, obtaining the angular velocity components at Xp axis, Yp axis and Zp axis according to the angular velocity of a gyroscope installed on a platform body; 2, measuring and obtaining the internal relative rotation angle and angular velocity of the four-axle inertial stabilization platform system; and 3, calculating the synthetic rotation angular velocity of the platform body, an internal frame, an outer frame and a servo frame. The method is capable realizing servo loop decoupling calculation without singular value under the circumstance that the platform system relative rotation angle is an optional value, thereby improving the full attitude adaptation capability of a carrier under the condition of no trajectory constraint.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of inertial measurement, in particular to a servo loop decoupling method of a four-axis inertial stable platform system, which is mainly used for full-attitude high-precision navigation in the fields of aviation and aerospace. Background technique

[0002] Due to the phenomenon of "frame locking" in the three-axis inertial platform system, it is difficult to meet the requirements of large maneuvering motion of the carrier. Therefore, a four-axis inertial stable platform system is produced. Compared with the three-axis inertial platform system, the four-axis inertial stable platform system adds a follower frame on the basis of the platform body, inner frame and outer frame, and the follower frame is located between the platform outer frame and the base.

[0003] The traditional solution is as follows: the follow-up loop signal comes from the corner of the inner frame, and a secant resolver is used for gain co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More