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"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

Spacecraft thruster operation for improved orbital maneuver accuracy

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64G-001/26   
미국특허분류(USC) 244/169
출원번호 US-0519441 (1995-08-25)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Meise
인용정보 피인용 횟수 : 4  인용 특허 : 11
초록

A spacecraft includes a body defining a center of mass, and an attitude control system, for generating attitude error signals representing deviation of the body from a desired attitude. A plurality of thrusters mounted on the body have nominally parallel thrust components, in a particular direction. The thrusters are arranged in pairs, which produce opposed torques. A velocity change controller is coupled to the thrusters, for generating pulsatory firing command signals for the thrusters for a particular total time duration, for achieving a desired veloc...

대표
청구항

[ What is claimed is:] [1.] A spacecraft, comprising:a body defining a center of mass:attitude sensing means coupled to said body, for generating attitude error signals representative of deviation of said body from a particular attitude;a plurality of thrusters mounted on said body, with mutually parallel thrust components in a particular direction, said thrusters being arranged in pairs, with the thrusters in each pair producing substantially opposed torques about said center of mass;velocity change control means coupled to said plurality of thrusters, ...

이 특허에 인용된 특허 (11)

  1. Becker Klaus (Bremen DT). Attitude control for space vehicle. USP1976033944172.
  2. Gschel Wilhelm (Taufkirchen DEX). Method and apparatus for controlling a satellite. USP1981094288051.
  3. Chan, Fred N.. Method and apparatus for thruster transient control. USP1985084537375.
  4. Johansen Donald G. (Manhattan Beach CA). Nutation and roll error angle correction means. USP1976023937423.
  5. Keigler John Edward (Princeton NJ) Muhlfelder Ludwig (Livingston NJ) Cenker Robert Joseph (Princeton NJ). Orientation system for a spin stabilized spacecraft. USP1976083977633.
  6. Fleming Alan W. (Palos Verdes Peninsula CA). Satellite nutation attenuation apparatus. USP1976103984071.
  7. Kazimi Fatima (San Carlos CA) White Lisa K. (Menlo Park CA) Plescia Carl T. (Sunnyvale CA). Spacecraft East/West orbit control during a North or South stationkeeping maneuver. USP1995035400252.
  8. Otten David D. (Redondo Beach CA) Sackheim Robert L. (Rancho Palos Verdes CA). Spacecraft guidance and control system. USP1991024991393.
  9. Lichtin Daniel A. (Cranbury NJ) Raman Kidambi V. (East Windsor NJ) Subbarao Vasuki (Plainsboro NJ). Spacecraft velocity change maneuvers by variable arcjets. USP1995035395076.
  10. Rosen Harold A. (Santa Monica CA). Stabilization of a spinning spacecraft of arbitary shape. USP1990104961551.
  11. Boka Jeffrey B. (Trenton NJ) Patel Naresh R. (Bellmawr NJ) Kim Kevin D. (King of Prussia PA) Shaw David S. (Plainsboro NJ). Unified spacecraft attitude control system with pseudo-complementary paired thrusters. USP1994085335179.