Unified spacecraft attitude control system

Details Unified spacecraft attitude control system Unified spacecraft attitude control system

1991-07-31

1992-08-18

Chin, Gary

Boots, shoes, and leggings

244164, 244171, B64G 126

Patent

active

051405253

ABSTRACT:
An attitude control system for a spacecraft includes sensors for generating attitude control signals and logic for producing torque demand signals in the form of a T.sub.d matrix. The thrusters are oriented in complementary pairs about the center of mass for, when energized, producing mutually opposite torques. Information about the location of thrusters and their thrusts may be represented by a pulse-width-to-torque transformation matrix C. A weighted pseudo inverse of C is precalculated as

REFERENCES:
patent: 3866025 (1975-02-01), Cavanagh
patent: 4537375 (1985-08-01), Chan
patent: 4599697 (1986-07-01), Chan et al.
patent: 4758957 (1988-07-01), Hubert et al.
patent: 4961551 (1990-10-01), Rosen

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