Ensuring PNT Resilience

Humphreys, Todd E.; Komodromos, Zacharias M.; Morgan, Samuel C.; Clements, Zachary L.; Qin, Wenkai; Morrison, W. Jeremy

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Ensuring PNT Resilience

2026-09-17
By Humphreys, Todd E. ; Komodromos, Zacharias M. ; Morgan, Samuel C.

File Language:

English

[PDF - 19.60 MB]

Details

Creators:

Humphreys, Todd E. ; Komodromos, Zacharias M. ; Morgan, Samuel C. ; Clements, Zachary L. ; Qin, Wenkai ; Morrison, W. Jeremy
Corporate Creators:

University of Texas at Austin ; Center for Automated Vehicles Research with Multimodal Assured Navigation (CARMEN+) Tier-1 University Transportation Center (UTC)
Corporate Contributors:

United States. Department of Transportation. Federal Highway Administration ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
Subject/TRT Terms:
Resource Type:

Tech Report
Geographical Coverage:

United States ; Europe ; Canada
Edition:

Final Report (January 6, 2026 to August 30, 2026)
Corporate Publisher:

Center for Automated Vehicles Research with Multimodal Assured Navigation (CARMEN+) Tier-1 University Transportation Center (UTC)
Description:

The work reported here involves two primary thrusts. In the first thrust, we identify and characterize dedicated pilot symbols and other predictable elements embedded within the Starlink Ku-band downlink waveform. Exploitation of these predictable elements enables precise opportunistic positioning, navigation, and timing using compact, low-gain receivers by maximizing the signal processing gain available for signal acquisition and time-of-arrival (TOA) estimation. In the second thrust, we analyze and identify a space-based Global Navigation Satellite System (GNSS) interference source that has caused scores of powerful transient wide-area interference events over continental Europe, Greenland, and Canada since 2019.
Format:

PDF
Funding:

69A3552348327
Download URL:

https://rosap.ntl.bts.gov/view/dot/94256/dot_94256_DS1.pdf
File Type:

[PDF - 19.60 MB]
Collection(s):

University Transportation Centers
Main Document Checksum:

urn:sha-512:038684e3f90baf178a7382c46806534c870368cb0ac8c3102bb1265e4eed71c0ea8733f368768e05c9c1f4fdc745f35b88e79d2228dea8d622644ee6d7627ae4

File Language:

English

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