Attitude maneuvers of CTS-like spacecraft using PD based constant-amplitude inputs

Setyamartana Parman, Bambang Ari-Wahjoedi, Edward Halawa, Affiani Machmudah

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Attitude maneuvers of a Communication Technology Satellite (CTS)-like spacecraft using constant-amplitude thrusters is of great importance. The spacecraft consists of a rigid main body and two symmetrical solar panels. When the panels are large, they cannot be treated as rigid bodies anymore. They are supposed to behave structural flexibility. To discrete their motion, the finite element method is followed. Under constant-amplitude thrusts, steady-state attitude angle oscillations may occur in large amplitude after the maneuvers. Since, the spacecraft should point to the earth precisely, these oscillations must be reduced into small permissible values. To reduce residual attitude angle oscillations, Proportional Derivative (PD) based constant-amplitude input shaping logic is proposed to determine time locations of thruster switching. Then, under such inputs, attitude maneuvers of the spacecraft are simulated numerically. Results of simulations show that the precise orientation of the satellite can be achieved.

Original languageEnglish
Pages (from-to)2519-2526
Number of pages8
JournalJournal of Applied Sciences
Issue number24
Publication statusPublished - 2012
Externally publishedYes


  • Attitude maneuver
  • Constant-amplitude
  • Flexible spacecraft
  • PD control


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