Title:
【発明の名称】地球静止衛星の指向方法とその装置
Document Type and Number:
Japanese Patent JP2664797
Kind Code:
B2
Abstract:
A method and arrangement for aligning a space vehicle with respect to a reference object is disclosed. A measuring direction is obtained by determining the angular orientation direction of the space vehicle with respect to the reference object and subsequently the space vehicle is aligned by means of actuators such that the measuring direction corresponds to a reference direction on the space vehicle. The actuators are driven by control signals which are derived from the measuring direction to cause control torques on the space vehicle. The orientation of the space vehicle and reference object is determined only with respect to a single measuring direction along a main axis of a direction sensor. The following steps are taken if the measuring direction does not correspond to the reference direction on the space vehicle: a) the space vehicle is rotated around the reference direction on the space vehicle, b) controlling a fault component of the direction of the reference object situated in the measuring direction by locking on a first control torque perpendicularly with respect to the reference direction on the space vehicle, and c) controlling the unmeasurable component of the direction of the reference object situated perpendicularly with respect to the measuring direction by locking on a second control torque perpendicularly with respect to the reference direction and perpendicularly with respect to the first steering moment.
Inventors:
Arnold Scheidt
Horst-Dieter Fishel
Horst-Dieter Fishel
Application Number:
JP18073690A
Publication Date:
October 22, 1997
Filing Date:
July 10, 1990
Export Citation:
Assignee:
Messerschmitt-Belkow-Brom Geselsyaft Mito Besilyen Hafertung
International Classes:
B64G1/36; G05D1/08; B64G1/24; (IPC1-7): B64G1/24
Domestic Patent References:
| JP63106200A |
Attorney, Agent or Firm:
Esaki Mitsufumi