OPTICAL COMMUNICATION

In-orbit measurements of short term attitude and vibrational environment on the Engineering Test Satellite VI using laser communication equipment

[+] Author Affiliations
Morio Toyoshima

National Space Development Agency of Japan, 2-2-1 Sengen, Tsukuba, Ibaraki?305-8505, Japan E-mail: toyoshima.morio@nasda.go.jp

Kenichi Araki

Communications Research Laboratory, 4-2-1 Nukui-Kitamachi, Koganei, Tokyo?184-8795, Japan E-mail: araki@crl.go.jp

Opt. Eng. 40(5), 827-832 (May 01, 2001). doi:10.1117/1.1355976
History: Received July 28, 1999; Revised Oct. 27, 2000; Accepted Nov. 28, 2000
Text Size: A A A

Angular microvibrations of platform jitter on a three-axis attitude-stabilized satellite are measured in space using an onboard laser communication terminal. Stable optical tracking control allows the measurement of relative angular variations from the reference line of sight of the optical link. The tracking accuracy in this measurement is less than 1 μrad rms. The angular variation and the drift rate on the satellite are measured at a sampling rate of 500 Hz, and these data are downlinked to a ground station via a satellite-to-ground optical communication link. The power spectral density of the satellite microvibration is calculated by a Fourier transform analysis. The frequency spectrum of the gimbal mirror’s angular variation is also obtained when the coarse tracking control is operational. The rms value agrees with the residual coarse tracking error estimated before launch of the satellite. These results will be useful for the future design of a tracking control loop for optical communication systems. © 2001 Society of Photo-Optical Instrumentation Engineers.

© 2001 Society of Photo-Optical Instrumentation Engineers

Citation

Morio Toyoshima and Kenichi Araki
"In-orbit measurements of short term attitude and vibrational environment on the Engineering Test Satellite VI using laser communication equipment", Opt. Eng. 40(5), 827-832 (May 01, 2001). ; http://dx.doi.org/10.1117/1.1355976


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement

  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.