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Attitude Guidance and Control for Rapid Deorbit of Space Debris by Aerodynamic Drag

Research Project

Project/Area Number 19K15020
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 21040:Control and system engineering-related
Research InstitutionJapan Aerospace EXploration Agency

Principal Investigator

Sasaki Takahiro  国立研究開発法人宇宙航空研究開発機構, 研究開発部門, 研究開発員 (00835168)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords制御工学 / ロバスト制御 / デブリ除去 / 姿勢制御 / トルク平衡姿勢 / 軌道制御 / 軌道降下誘導則 / 適応誘導則 / 宇宙デブリ除去 / 宇宙機システム / 姿勢誘導 / 軌道上外乱利用 / アストロダイナミクス / 駆動則設計 / 軌道上外乱 / 人工衛星
Outline of Research at the Start

本研究では、主に以下2つの研究を実施する。
①小型除去衛星が大型デブリ結合後に航法センサを用いて慣性モーメント・残留磁気モーメントおよび空力中心・重心位置を衛星の運動モデルから逆算し、推定するアルゴリズムを提案する。
②得られた推定値を用いて大型デブリ結合後に小型衛星システムで成立する効率的なデブリ落下 (デオービット)を実現するために、軌道上外力を積極的に利用した誘導則の提案、外乱や推定誤差があっても安定性を保証するロバストな姿勢制御器の設計を行う。

Outline of Final Research Achievements

This research introduces AMTEA, an altitude-dependent mean torque equilibrium attitude (TEA) characterized around an equilibrium (balance) point in attitude dynamics, which is affected by aerodynamic and gravity gradient torques for each altitude. Introducing a new adaptive function, we propose the adaptive TEA guidance technique, which corrects the guidance error from model uncertainty while it learns the actuator inputs during one orbital revolution. As a result, AMTEA avoids wheel spin saturation. Solving the mixed H2/H∞ constraints of linear matrix inequalities (LMIs) representation, the robust controller guarantees overall stability and control performance and manages large disturbance torque and model uncertainty using the RWs/MTQs steering law for controlling wheel spin rates and wheel unloading. This new adaptive guidance and the robust controller are demonstrated by comparing the results of numerical simulations.

Academic Significance and Societal Importance of the Research Achievements

宇宙デブリの自然増加の抑制に有効である大型デブリ除去は、年間除去目標における費用対効果を考えたとき、小型衛星によって実施される必要がある。小型衛星に搭載可能な非力なアクチュエータシステムで大型デブリを効率的に落とすには、大気抵抗を積極的に利用することが有効である。本研究で確立された誘導制御方式は、500kg級の小型衛星で3000kgの大型宇宙ゴミの除去を可能とするものであり、将来の持続的な宇宙ゴミ除去システムの構築へと役立つ成果であると考える。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2021 2020 2019

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Proximity Approaches and Design Strategies for Non-Cooperative Rendezvous2021

    • Author(s)
      Takahiro Sasaki, Yu Nakajima, Toru Yamamoto
    • Journal Title

      TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

      Volume: 64 Issue: 3 Pages: 136-146

    • DOI

      10.2322/tjsass.64.136

    • NAID

      130008034577

    • ISSN
      0549-3811, 2189-4205
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Non-Cooperative Rendezvous and Proximity Operations for Active Debris Removal Missions2021

    • Author(s)
      Takahiro Sasaki, Naomi Murakami, Yu Nakajima, Moeko Hidaka, Ryo Nakamura, Toru Yamamoto
    • Organizer
      31st AAS/AIAA Space Flight Mechanics Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Adaptive Torque Equilibrium Attitude Guidance for Rapid Deorbit of Space Debris by Aerodynamic Drag Considering Model Uncertainty2020

    • Author(s)
      T. Sasaki, Y. Nakajima, H. Okamoto, T. Yamamoto
    • Organizer
      71st International Astronautical Congress (IAC)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Rendezvous and Proximity Operations for Active Debris Removal Satellites Considering Trajectory Safety2020

    • Author(s)
      Takahiro Sasaki, Yu Nakajima and Toru Yamamoto
    • Organizer
      43rd Annual AAS Guidance, Navigation and Control Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] デブリ接近軌道のトレードオフ評価: V-barホッピング軌道vsスパイラル軌道2019

    • Author(s)
      佐々木貴広、中島悠、山元透
    • Organizer
      第29回アストロダイナミクスシンポジウム
    • Related Report
      2019 Research-status Report
  • [Presentation] Attitude Guidance and Control for Rapid Deorbit of Space Debris by Aerodynamic Drag2019

    • Author(s)
      Takahiro Sasaki, Yu Nakajima, Hiroyuki Okamoto and Toru Yamamoto
    • Organizer
      70th International Astronautical Congress (IAC)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] デブリ除去衛星の小型化を可能とする軌道上外乱を積極的に用いた姿勢誘導則の提案2019

    • Author(s)
      佐々木貴広、中島悠、山元透
    • Organizer
      第63回宇宙科学技術連合講演会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2022-01-27  

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