Title:
TRIAXIAL POSTURE CONTROL DEVICE FOR ARTIFICIAL SATELLITE
Document Type and Number:
Japanese Patent JP2658937
Kind Code:
B2
Abstract:
PURPOSE: To provide a triaxial posture control device for artificial satellite in which the highly precise posture control of an artificial satellite and the damping control of a soft structure can be simultaneously attained.
CONSTITUTION: A satellite dynamic reverse model computing element 7 generates an estimated disturbance signal (c) for estimating a disturbance (x) added to a satellite body 3 from a posture angle speed signal (b). An actuator reverse model computing element 8 generates a disturbance removal signal (d) for removing the estimated disturbance. A posture system waste time model 12 generates an estimation control signal (e) by ternary pade approximation. After the estimation control signal (e) and the disturbance removal signal (d) are converted into an estimated disturbance removal signal (f) through a filter 10 after subtracted in a subtracter 9. A main controller 1 generates a control signal on the basis of the posture angle speed signal (b) and a satellite posture angle estimation signal (g). This control signal is added to the estimated disturbance removal signal (f) in an adder 11, made into a posture control signal (a), and then supplied to a posture controlling actuator 2 to control its operation.
Inventors:
YAMASHITA TOSHIAKI
Application Number:
JP397795A
Publication Date:
September 30, 1997
Filing Date:
January 13, 1995
Export Citation:
Assignee:
NIPPON DENKI KK
International Classes:
B64G1/38; G05D1/08; B64G1/24; (IPC1-7): B64G1/38; B64G1/24; G05D1/08
Attorney, Agent or Firm:
松浦 兼行
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