
David Holdsworth
School of Physics, Chemistry and Earth Sciences
Faculty of Sciences, Engineering and Technology
I am a Principal Scientist in Sensor Systems in Sensors and Effectors Division, Defence Science & Technology (DST) Group.
I am also an Adjunct Associate Professor in the Department of Physics.
My research interests include ionospheric physics, signal processing, and space situational awareness.
I am currently (as of 2025) supervising an Honours Physics student who is working on a novel technique using radar detections of Starlink satellites to measure total electron content (TEC) between the ground and 570 km.
I have previously supervised and/or mentored PhD and MPhil students in Physics and Honours students in Physics and EEE. I am eager to supervise students in either Physics and EEE.
My publication record is as follows:
Co-author of book chapter “Ionospheric effects on HF propagation ”, “Advances in Ionospheric Research: Current Understanding and Challenges”, Wiley/AGU, to be published August 2019
Co-author of 52 (20 as lead author) papers published in refereed journal publications, including IEEE signal processing magazine, Radio Science, Advances in Space Research, Annales Geophysicae, “Earth, Planets, Space", Geophysical Research Letters, and Journal of Atmospheric and Solar Terrestrial Physics.
Co-author of 127 (55 as lead author) presentations made at national and international conferences, symposiums and workshops.
Co-author of five invited papers at international conferences
Sample publications:
[1] D. A. Holdsworth and I. M. Reid, Ionospheric vertical TEC measurements using radar observations of Starlink satellites, URSI Asia Pacific Radio Science Conference, August 2025
[2] D. A. Holdsworth, A. J. Spargo, I. M. Reid, C. L. Adami, “Space Domain Awareness Observations Using the Buckland Park VHF Radar.”. Remote Sensing, 16(7), 1252, 2024
[3] J. R. Jonker, M. A. Cervera, T. J. Harris, D. A. Holdsworth, A. D. MacKinnon, D. Neudegg, I. M. Reid, “Observational evidence of EMIC waves propagating in the mid-latitude ionospheric waveguide using ground-based HF and VHF radar”, Advances in Space Research, 2024
[4] D. A. Holdsworth, K. Mulder, M. D. Turley, “Jindalee operational radar network: New growth from old roots”, In 2022 IEEE Radar Conference (RadarConf22) (pp. 1-6), IEEE, 2022. 9 citations
[5] M. A. Cervera, T. J. Harris, D. A. Holdsworth and D. J. Netherway, “Ionospheric effects on HF propagation”, in “Advances in Ionospheric Research: Current Understanding and Challenges”, Wiley/AGU, December 2021. 17 citations
[6] R. S. Gardiner-Garden, M. Cervera, R. Debnam, T. Harris, A. Heitmann, D. A. Holdsworth, D. Netherway et al. "A description of the Elevation sensitive Oblique Incidence Sounder Experiment (ELOISE)." Advances in Space Research, 2019. 5 citations
[7] D. A. Holdsworth, "Skywave over-the-horizon radar track registration using earth surface and infrastructure backscatter." In 2017 IEEE Radar Conference, pp. 0986-0991. IEEE, 2017. 11 citations
[8] M.D.E. Turley, R.S. Gardiner-Garden and D. A. Holdsworth, “High Resolution wide area remote sensing for HF radar track registration”, International Conference on Radar, 2013. 20 citations
[9] M. Tsutsumi, A. S. Yukimatu, D. A. Holdsworth, M. Lester, “Advanced SuperDARN meteor wind observations based on raw time series analysis technique”, Radio Science, Apr 2009. 21 citations
[10] R. J. Morris, A. R. Klekociuk and D. A. Holdsworth, “First observations of Southern Hemisphere polar mesosphere winter echoes including conjugate occurrences at 69°S latitude”, Geophys. Res. Lett., 38, L03811, doi:10.1029/2010GL046298. 20 citations
[11] D. A. Holdsworth, I. M. Reid and M. A. Cervera, “The Buckland Park all-sky interferometric meteor radar”, Radio Science 39, RS5009, doi:10.1029/2003RS003014.2004, 2004. 229 citations
[12] D. A. Holdsworth and I. M. Reid, “A simple model of atmospheric radar backscatter: Description and application to the full correlation analysis of spaced antenna data”, Radio Sci., 30(4), 1263-1280, 1995. 121 citations
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Education
Date Institution name Country Title 2009 - 2009 University of Melbourne Australia Graduate Program in Scientific Leadership 1991 - 1995 University of Adelaide Australia PhD
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Journals
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Book Chapters
Year Citation 2021 Cervera, M. A., Harris, T. J., Holdsworth, D. A., & Netherway, D. J. (2021). Ionospheric Effects on HF Radio Wave Propagation. In Ionosphere Dynamics and Applications (pp. 441-492). Wiley.
DOI Scopus15 -
Conference Papers
Year Citation 2023 Jonker, J., Cervera, M., Holdsworth, D., Neudegg, D., Harris, T., MacKinnon, A., & Reid, I. (2023). Impact of Ionospheric Doppler Perturbations on Space Domain Awareness Observations. In Proceedings of the IEEE Radar Conference (pp. 1-6). Online: IEEE.
DOI Scopus22023 Hennessy, B., Yardley, H., Holdsworth, D. A., Debnam, R., Jessop, M., & Warne, G. (2023). Velocity Ambiguity Resolution using Opposite Chirprates with LFM Radar. In Proceedings of the IEEE Radar Conference (pp. 1-6). IEEE.
DOI Scopus42023 Hennessy, B., Holdsworth, D. A., Yardley, H., Debnam, R., Warne, G., & Jessop, M. (2023). Effects of Range Doppler-rate Coupling on High Frequency Chirp Radar for Accelerating Targets. In Proceedings of the IEEE Radar Conference (pp. 1-6). IEEE.
DOI Scopus12022 Holdsworth, D. A., Mulder, K., & Turley, M. D. E. (2022). Jindalee Operational Radar Network: New Growth from Old Roots. In Proceedings of the IEEE Radar Conference (pp. 1-6). IEEE.
DOI Scopus92022 Heading, E., Nguyen, S. T., Holdsworth, D., Field, D., & Reid, I. (2022). Analysis of RF Signatures for Space Domain Awareness using VHF radar. In Proceedings of the IEEE Radar Conference (pp. 6 pages). New York, NY: IEEE.
DOI Scopus4 WoS32017 Holdsworth, D. A. (2017). Skywave over-the-horizon radar track registration using earth surface and infrastructure backscatter. In 2017 IEEE Radar Conference Radarconf 2017 (pp. 0986-0991). IEEE.
DOI Scopus102017 Heitman, A. J., Cervera, M. A., Gardiner-Garden, R. S., Holdsworth, D. A., MacKinnon, A. D., Reid, I. M., & Ward, B. D. (2017). Observations and modeling of traveling ionospheric disturbance signatures from an Australian network of oblique angle-of-arrival sounders. In Proceedings of the 32nd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS 2017) Vol. 2017-January (pp. 1-4). Montreal, Canada: IEEE.
DOI Scopus2 WoS12013 Holdsworth, D. A. (2013). Over-the-horizon radar continuous-wave interference suppression using harmonic least-squares fitting. In 2013 International Conference on Radar Beyond Orthodoxy New Paradigms in Radar Radar 2013 (pp. 106-111). IEEE.
DOI Scopus12013 Turley, M. D. E., Gardiner-Garden, R. S., & Holdsworth, D. A. (2013). High-resolution wide area remote sensing for HF radar track registration. In 2013 International Conference on Radar Beyond Orthodoxy New Paradigms in Radar Radar 2013 (pp. 128-133). IEEE.
DOI Scopus192012 Holdsworth, D. A. (2012). An over-the-horizon radar performance assessment module for use in cognitive radar. In Iet Conference Publications Vol. 2012 (pp. 34). Institution of Engineering and Technology.
DOI Scopus52009 Morris, R. J., Klekociuk, A. R., Latteck, R., Singer, W., Holdsworth, D. A., & Murphy, D. J. (2009). Inter-hemispheric asymmetry in polar mesosphere summer echoes and temperature at 69° latitude. In R. L. Collins, S. M. Bailey, U. Bailey, F. -J. Luebken, & A. W. Merkel (Eds.), Global Perspectives on the Aeronomy of the Summer Mesopause Region: Eighth International Workshop on Layered Phenomena in the Mesopause Region, as published in Journal of Atmospheric and Solar-Terrestrial Physics Vol. 71 (pp. 464-469). Fairbanks, Alaska: Elsevier.
DOI Scopus19 WoS162008 Holdsworth, D. A., & Fabrizio, G. A. (2008). HF interference mitigation using STAP with dynamic degrees of freedom allocation. In Proceedings of the 2008 International Conference on Radar Radar 2008 (pp. 317-322). IEEE.
DOI Scopus42008 Fabrizio, G. A., & Holdsworth, D. A. (2008). Adaptive mitigation of spread clutter in high frequency surface-wave radar. In Proceedings of the 2008 International Conference on Radar Radar 2008 (pp. 235-240). IEEE.
DOI Scopus52007 Fabrizio, G., Holdsworth, D., & Farina, A. (2007). Experimental HF radar trial of real-time STAP. In 2007 International Waveform Diversity and Design Conference Wdd (pp. 316-320). IEEE.
DOI Scopus92005 Singer, W., Latteck, R., Friedrich, M., Dalin, P., Kirkwood, S., Engler, N., & Holdsworth, D. (2005). D-region electron densities obtained by diffeeential absorption and phase measurements with a 3-MHz Doppler radar. In European Space Agency Special Publication ESA SP (pp. 233-237).
Scopus62003 Holdsworth, D., Reid, I., Vuthaluru, R., & Vincent, R. (2003). Mesospheric and lower thermospheric observations using the Buckland Park medium frequency radar. In D. Sinnott (Ed.), Proceedings of the International Conference on Radar 2003 (pp. CDROM 276-CDROM 281). CDROM: IEEE.
DOI Scopus1 -
Datasets
Year Citation - Holdsworth, D., Spargo, A., Reid, I., & adami, C. (n.d.). Low Earth Orbit object observations using the Buckland Park VHF radar by Holdsworth et al, Radio Science 2019.
DOI- Holdsworth, D., Reid, I., Spargo, A., & adami, C. (n.d.). <b>Space Domain Awareness Observations Using the </b><b>Buckland Park VHF Radar</b>.
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Past Higher Degree by Research Supervision (University of Adelaide)
Date Role Research Topic Program Degree Type Student Load Student Name 2018 - 2020 Co-Supervisor Characterising Spatial and Temporal Ionospheric Variability with a Network of Oblique Angle-of-arrival and Doppler Ionosondes Doctor of Philosophy Doctorate Part Time Mr Andrew James Heitmann
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