Effects of Jammer Jitter and Sampling Duration on CRPA Null Placement

Henry Powell, Robert W. Jackson, and Do-Hoon Kwon

Peer Reviewed

Abstract:	Expanding on our previous work (Powell et al. (2024)), the effect of GPS jammer jitter on the accuracy of null steering by controlled reception pattern antennas is numerically studied in the time domain. Jammer oscillator phase noise is more accurately modeled as a Wiener Process. System design parameters are discussed for placing separate pattern nulls for two jammers at the same carrier frequency having independent phase noise. Results for varying rms jitter values and for varying sample durations are discussed.
Published in:	Proceedings of the 38th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2025) September 8 - 12, 2025 Hilton Baltimore Inner Harbor Baltimore, Maryland
Pages:	1478 - 1485
Cite this article:	Powell, Henry, Jackson, Robert W., Kwon, Do-Hoon, "Effects of Jammer Jitter and Sampling Duration on CRPA Null Placement," Proceedings of the 38th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2025), Baltimore, Maryland, September 2025, pp. 1478-1485. https://doi.org/10.33012/2025.20243
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