Refining electromagnetic bias estimation [sea surface height measurement]. - Floyd W. Millet; Karl F. Warnick; David Arnold 003 (IGARSS, 2002)

Improved interference cancellation in synthesis array radio astronomy using auxiliary antennas. - Brian D. Jeffs; Karl F. Warnick; Lisha Li (ICASSP (5), 2003)

Auxiliary antenna-assisted interference mitigation for radio astronomy arrays. - Brian D. Jeffs; Lisha Li; Karl F. Warnick (IEEE Trans. Signal Process., 2005)

Physical optics-based electromagnetic bias theory with surface height-slope cross-correlation and hydrodynamic modulation. - Floyd W. Millet; Karl F. Warnick; James R. Nagel; David V. Arnold (IEEE Trans. Geosci. Remote. Sens., 2006)

BIAS Corrected PSD Estimation with an Interference Canceling Array. - Brian D. Jeffs; Karl F. Warnick (ICASSP (2), 2007)

On the Geometrical Optics (Hagfors' Law) and Physical Optics Approximations for Scattering From Exponentially Correlated Surfaces. - Joel T. Johnson; Karl F. Warnick; Peng Xu (IEEE Trans. Geosci. Remote. Sens., 2007)

Signal Processing for Phased Array Feeds in Radio Astronomical Telescopes. - Brian D. Jeffs; Karl F. Warnick; Jonathan Landon; Jacob Waldron; David Jones; J. Richard Fisher; Roger D. Norrod (IEEE J. Sel. Top. Signal Process., 2008)

Bias Corrected PSD Estimation for an Adaptive Array With Moving Interference. - Brian D. Jeffs; Karl F. Warnick (IEEE Trans. Signal Process., 2008)

Spectral Bias in Adaptive Beamforming With Narrowband Interference. - Brian D. Jeffs; Karl F. Warnick (IEEE Trans. Signal Process., 2009)

Broadband RF impedance spectroscopy in micromachined microfluidic channels. - Matthieu Giraud-Carrier; Kyra Moon; Eric Teng; Aaron R. Hawkins; Karl F. Warnick; Brian A. Mazzeo (EMBC, 2011)

Model-Based Subspace Projection Beamforming for Deep Interference Nulling. - Jonathan Landon; Brian D. Jeffs; Karl F. Warnick (IEEE Trans. Signal Process., 2012)

Multi-tier interference-cancelling array processing for the ASKAP radio telescope. - Richard A. Black; Brian D. Jeffs; Karl F. Warnick; Gregory Hellbourg; Aaron Chippendale (SP/SPE, 2015)

Cancelling non-linear processing products due to strong out-of-band interference in radio astronomical arrays. - Yifeng Wu; Richard A. Black; Brian D. Jeffs; Karl F. Warnick (SP/SPE, 2015)

Airborne Radar-Based Collision Detection and Risk Estimation for Small Unmanned Aircraft Systems. - Laith R. Sahawneh; James Mackie; Jonathan C. Spencer; Randal W. Beard; Karl F. Warnick (J. Aerosp. Inf. Syst., 2015)

High-Sensitivity Phased Array Receivers for Radio Astronomy. - Karl F. Warnick; Rob Maaskant; Marianna V. Ivashina; David Bruce Davidson; Brian D. Jeffs (Proc. IEEE, 2016)

Ground-Based Sense-and-Avoid System for Small Unmanned Aircraft. - Laith R. Sahawneh; Jared K. Wikle; A. Kaleo Roberts; Jonathan C. Spencer; Timothy W. McLain; Karl F. Warnick; Randal W. Beard (J. Aerosp. Inf. Syst., 2018)

A Versatile Wireless Network Protocol for Spectrum Sharing with Passive Radio Services. - Ashton Palacios; Dinah Bronson; Jon Backman; Karl F. Warnick; Philip Lundrigan (CoRR, 2023)

Wideband Array Signal Processing with Real-Time Adaptive Interference Mitigation. - Adam Whipple; Mark W. Ruzindana; Mitchell C. Burnett; Jakob W. Kunzler; Kayla Lyman; Brian D. Jeffs; Karl F. Warnick (Sensors, 2023)

Network Layer Spectral Coordination Integrated With Hadamard Projection for Multilayer Interference Mitigation. - Ashton Palacios; Devon Ward; Dinah Bronson; Jon Backman; Deukhyoun Heo; Karl F. Warnick; Philip Lundrigan (DySPAN, 2024)

The Friis Transmission Formula, Active Antenna Available Power, Reciprocity in Multiantenna Systems, and the Unnamed Power Gain. - Karl F. Warnick; Frédéric Broydé; Lukás Jelínek; Miloslav Capek; Evelyne Clavelier (CoRR, 2024)

Online Calibration for Networked Radar Tracking of UAS. - Douglas Graff; Brady Anderson; David Buck; Cameron K. Peterson; Timothy W. McLain; Karl F. Warnick (J. Intell. Robotic Syst., 2024)

Fast Sub-Hz Phase Noise Estimation Using a Simple Approximation in Terms of Allan Variance. - Karl F. Warnick (IEEE Trans. Instrum. Meas., 2025)