State Estimation of Terrestrial and Space Based Passive RF Architectures for Use in Cislunar SSA Utilizing Existing SSN Locations
Document Type
Conference Proceeding
Publication Date
9-2023
Abstract
This paper explores and analyzes the use of a network of terrestrial and the potential addition of a space-based RF receiver to conduct Space Situational Awareness (SSA) in cislunar space using passive Time Difference of Arrival (TDOA) and Frequency Difference of Arrival (FDOA) measurements. First, this paper explores the use of terrestrial architectures that utilize preexisting Space Surveillance Network (SSN) locations and identifies the best configuration for each based on the potential geometric dilution of precision (GDOP) and line-of-sight (LOS) availability. This analysis shows points of minimal return where the addition of more ground stations does not appreciably improve state estimation. Next, a demonstration shows that cislunar SSA state estimation accuracy for both batch estimation and sequential estimation improves as GDOP decreases and LOS improves. Finally, this paper models and simulates the accuracy of a ground-only and a GEO-augmented Passive RF system, demonstrating nearly an order of magnitude increase in accuracy with a single satellite.
Source Publication
2023 Advanced Maui Optical and Space Surveillance Technologies Conference (AMOS)
Recommended Citation
Waggoner, K., & Garcia, D. (2023, September 16). State estimation of terrestrial and space based passive RF architectures for use in cislunar SSA utilizing existing SSN locations. 2023 Advanced Maui Optical and Space Surveillance Technologies Conference (AMOS). 2023 Advanced Maui Optical and Space Surveillance Technologies Conference (AMOS), Maui, HI.
Comments
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