Unified spacecraft attitude control system with pseudo-complemen

Details Unified spacecraft attitude control system with pseudo-complemen Unified spacecraft attitude control system with pseudo-complemen

1992-12-24

1994-08-02

Black, Thomas G.

Boots, shoes, and leggings

364459, 244164, 244169, 244171, B64G 124, B64G 126

Patent

active

053351797

ABSTRACT:
A unified spacecraft attitude control system includes a memory aboard the spacecraft, in which a linear transformation matrix [.alpha.] is stored, which includes information identifying pseudo-complementary pairs of thrusters, and the characteristics of each pseudo-complementary pair. During each control cycle of the spacecraft attitude control system, the error signal is multiplied by a gain representing a desired slew rate to form pulse-width signals {pw} for the pseudo-complementary paired thrusters. An augmented pulse-width vector matrix {PW} is formed by transformations, to eliminate negative values of pulse width. The actual thruster pulse widths {.DELTA.t} are calculated as {.DELTA.t}=[.alpha.]{PW}. The thrusters are energized by limited values of {.DELTA.t}.

REFERENCES:
patent: 4599697 (1986-07-01), Chan et al.
patent: 4848706 (1989-07-01), Garg et al.
patent: 4961551 (1990-10-01), Rosen
patent: 5020744 (1991-06-01), Schwarzschild
patent: 5020746 (1991-06-01), Anzel
patent: 5058835 (1991-10-01), Goodzeit et al.
patent: 5098041 (1992-03-01), Uetrecht
patent: 5130931 (1992-07-01), Paluszek et al.
patent: 5140525 (1992-08-01), Shankar et al.
patent: 5201833 (1993-04-01), Goodzeit et al.

Affiliated with

Also associated with

Rating

Unified spacecraft attitude control system with pseudo-complemen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Unified spacecraft attitude control system with pseudo-complemen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unified spacecraft attitude control system with pseudo-complemen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-69373