Optimal GEO lasercomm terminal field of view for LEO link support

Charles W. Hindman; Jeffrey P. Hunt; Brian S. Engberg; Kevin J. Walchko

doi:10.1117/12.646378

1 March 2006 Optimal GEO lasercomm terminal field of view for LEO link support

Charles W. Hindman, Jeffrey P. Hunt, Brian S. Engberg, Kevin J. Walchko

Author Affiliations +

Proceedings Volume 6105, Free-Space Laser Communication Technologies XVIII; 610504 (2006) https://doi.org/10.1117/12.646378
Event: Lasers and Applications in Science and Engineering, 2006, San Jose, California, United States

Abstract

As alternatives to the traditional gimbaled terminal design, future satellite based laser communications terminals are envisioned that utilize a wide field of view or field of regard (WFOV/WFOR). This approach can be advantageous in situations requiring rapid switching between user terminals, support for multiple terminals simultaneously (via TDMA, SDMA or WDMA) or other non-standard mission requirements. However, a traditional gimbaled terminal has the capability to continuously track a single user over very large angles, such as the 18-20° spanned by a LEO satellite as seen from GEO. WFOV/WFOR designs face increasing cost and/or complexity issues with each incremental increase in angular coverage. The methodology and inputs for a trade study are presented here that attempts to maximize the available connectivity to a LEO satellite while minimizing cost and complexity metrics by choosing an optimal FOV/FOR size for a GEO terminal.

Citation Download Citation

Charles W. Hindman, Jeffrey P. Hunt, Brian S. Engberg, and Kevin J. Walchko "Optimal GEO lasercomm terminal field of view for LEO link support", Proc. SPIE 6105, Free-Space Laser Communication Technologies XVIII, 610504 (1 March 2006); https://doi.org/10.1117/12.646378

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