1 March 2006 Optimal GEO lasercomm terminal field of view for LEO link support
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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.
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Charles W. Hindman, Charles W. Hindman, Jeffrey P. Hunt, Jeffrey P. Hunt, Brian S. Engberg, Brian S. Engberg, Kevin J. Walchko, 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); doi: 10.1117/12.646378; https://doi.org/10.1117/12.646378
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