Baylie Damtie(PhD)

Name: 
Baylie Damtie(PhD)
Academic Rank: 
Associate professor of Physics and President of Bahir Dar University
College/Institute: 
College of Science
Research Interest: 
Radar waveform analysis and design with special emphasis on atmospheric radar systems, Ionospheric physics, Signal processing and mathematical inversion methods, GPS system analysis and software radio technology, Physics Education
List of Publications: 

PUBLICATIONS
Original papers in international journals
1. Lehtinen, M.S., Damtie, B., Radar baud length optimisation of spatially incoherent timeindependent
targets, Journal of Atmospheric and Solar-Terrestrial Physics, 2012.
2. M. Nigussie, S. M. Radicella, B. Damtie, B. Nava, E. Yizengaw, L. Ciraolo, TEC ingestion
into NeQuick 2 to model the East African equatorial ionosphere, Radio Science V. 47,
Issue 5, 2012.
3. Ayene, M., Kriek, J., and Damtie, B., Wave-particle duality and uncertainty principle:
Phenomenographic categories of description of tertiary physics students depictions,
Physical Review Special Topics-Physics Education Research, Physical Review Special
Topics - Physics Education Research, 2011.

4. Yizengaw, E., M. B. Moldwin, A. Mebrahtu, B. Damtie, E. Zesta, C. E. Valladares, and
P. H. Doherty, Comparison of storm time equatorial ionospheric electrodynamics in the
African and American sectors, J. Atmos. Solar-Terr. Phys., 73(1), 156-163, 2011.
5. Yizengaw, E., M. B. Moldwin, E. Zesta, B. Damtie, A. Mebrahtu, F. Anad, R. F. Pfaff,
and M. Hartinger, Observations of ULF wave related equatorial electrojet fluctuations, J.
Geophys. Res., 2010
6. Damtie, B. and Lehtinen, MS., Comparison of the performance of different radar pulse
compression techniques in an incoherent scatter radar measurement, Ann. Geophys.,
27, 797-806, 2009.
7. Lehtinen, MS., Damtie, B., Piiroinen, P., and Orisp¨a¨a, M., Perfect and almost perfect
pulse compression codes for range spread radar targets, Inverse Problems and Imaging
(IPI), 465 - 486, Vol. 3 (3) , 2009.
8. Damtie, B., Lehtinen, MS., Orisp¨a¨a, M., and Vierinen, J., Mismatched Filtering of Aperiodic
Quadriphase Codes, IEEE Transactions on Information Theory, Vol.54 (4), 1742-
1749, 2008.
9. Kassa, T. and Damtie, B., Impacts of computer Simulation on Students Achievement,
Group interaction and Attitude in Direct Current Circuits, The Ethiopian Journal of
Higher Education (EJHE), Vol. 4 No. 1, 2007.
10. Uozumi, T.; Yumoto, K.; Kitamura, K.; Abe, S.; Kakinami, Y.; Shinohara, M.; Yoshikawa,
A.; Kawano, H.; Ueno, T.; Tokunaga, T.; McNamara, D.; Ishituka, J. K.; Dutra, S. L.
G.; Damtie, B.; Doumbia, V.; Obrou, O.; Rabiu, A. B.; Adimula, I. A.; Othman, M.;
Fairos, M.; Otadoy, R. E. S.; Magdas Group, A new index to monitor temporal and longterm
variations of the equatorial electrojet by MAGDAS/CPMN real-time data: EE-Index,
Earth, Planets and Space, Volume 60, 785-790, 2008.
11. Damtie, B., Lehtinen, MS., Orisp¨a¨a, M., and Vierinen, J., Optimal long binary phase
code-mismatched filter pairs with applications to ionospheric radars, Bull. Astr. Soc.
India, 35, 619623, 2007.
12. Damtie, B., T. B¨osinger, I.G. Usoskin, Establishing a cosmic ray station and other space
research facilities in Ethiopia, African Skies, 10, 29-32, 2006.
13. Damtie, B., Lehtinen, MS. and Nygr´en, T., Decoding of Barker-coded incoherent scatter
measurements by means of stochastic inversion, Ann. Geophysicae, 22, 3-13, 2004.
14. Lehtinen, MS., Damtie, B., and Nygr´en, T., Optimal binary phase code and sidelobe-free
decoding filter pairs with application to incoherent scatter radar, Ann. Geophysicae,22,
1623-1632, 2004.
15. Damtie, B., Nygr´en, T., Lehtinen, MS., and Huuskonen, A., High resolution observations
of sporadic-E layers within the polar cap ionosphere using a new incoherent scatter radar
experiment, Ann. Geophysicae, 20, 1429-1438, 2002.
16. Lehtinen, M., Markkanen, J., V¨a¨an¨anen, A., Huuskonen, A., Damtie, B., Nygren, T.,
Rahkola, J., A new incoherent scatter technique in the EISCAT Svalbard Radar, Radio
Sci., 37(3), 10.1029/2001RS002518, 2002.

17. Damtie, B., Lehtinen, M.S., Huuskonen, A., Nygr´en, T. and V¨a¨an¨anen, A., A modern data
acquistion and analysis method for the EISCAT incoherent scatter radars, Proceedings of
XXVIIth Triennial General Assembly of the International Union of Radio Science, 17-24
August, 2002, Maastricht, the Netherlands.
Selected conference presentations
1. Paznukhov, V.V., C. S. Carrano, C. E. Valladares, G. K. Semala, C. T. Bridgwood, J.
Adeniyi, L. L. N. Amaeshi, B. Damtie, F. D. Mutonyi, J. D. H. Ndeda, P. Baki, O. K
Obrou, B. Okere, G. M. Tsidu, GPS observations of plasma bubbles and scintillations
over equatorial Africa, Proceedings of the Ionospheric Effects Symposium, Alexandria,
VA, May 17-19, 2011.
2. Yizengaw,Y., Moldwin.,M., Mebrahtu, A., Damtie, B., Pfaff, R. F., Zesta. E., and Valladares,
C., Equatorial ionospheric electrodynamics observations in the African and
American longitudinal sectors, to be presented in 2009 AGU Fall Meeting, 14–18 December,
San Francisco, California, USA.
3. Damtie, B. and Lehtinen, MS., Estimating an incoherent scatter radar signal by using an
adaptive filtering technique, 14th International EISCAT Workshop, August 3– 7, 2009,
Troms, Norway.
4. Damtie, B. and Lehtinen, MS., A method of finding radar waveforms suitable for range
spread radar targets, IHY-Africa/SCINDA 2009 Workshop, June 7- 12, 2009, Livingstone,
Zambia.
5. Dagne, Y., Damtie, B., MATLAB-based software for analyzing and visualizing raw data
from SCINDA GPS receiving systems, IHY-Africa/SCINDA 2009 Workshop, June 7- 12,
2009, Livingstone, Zambia.
6. E. Yizengaw, M. Moldwin, A. Mebrahtu, B. Damtie, F. Anad, and C. Mbane Biouele, AMBER
magnetometer array and the equatorial electrodynamics, IHY-Africa/SCINDA 2009
Workshop, June 7- 12, 2009, Livingstone, Zambia.
7. A. B. Rabiu, B. Damtie, V. U. Chukwuma, O. K. Obrou, Introducing the African Geospace
Society, IHY-Africa/SCINDA 2009 Workshop, June 7- 12, 2009, Livingstone, Zambia.
8. Nigussie, M., Damtie, B., Yizengaw, E., and Mebrahtu, A., Temporal characteristics of
daytime equatorial electrojet at Ethiopian longitudinal sector inferred from amber and
intermagnet data, IHY-Africa/SCINDA 2009 Workshop, June 7- 12, 2009, Livingstone,
Zambia.
9. G. Mengistu, E. Shume, K. Groves, and B. Damtie, TEC variations, phases of peak TEC
and electron density profile during the period of December 2007December, 2008, near
the equatorial ionospheric anomaly trough region in Ethiopia, IHY-Africa/SCINDA 2009
Workshop, June 7- 12, 2009, Livingstone, Zambia.
10. A. B. Rabiu, K. Yumoto, Y. Yamazaki, A. I. Adimula, L. B. Kolawole, O. M. Osinowo, B.
Damtie, P. Baki, G. Kianji, MAGDAS/CPMN Group, Study of Behaviour of Equatorial
Electrojet Over West and East Africa from MAGDAS Observations, IHY-Africa/SCINDA
2009 Workshop, June 7- 12, 2009, Livingstone, Zambia.

11. Yizengaw, E., M. B. Moldwin, A. Mebrahtu, R. F. Pfaff, E. Zesta, and B. Damtie (2008),
Equatorial Electrojet Observations in the African Continent, Eos Trans. AGU, 89(53),
Fall Meet. Suppl., Abstract SA11A-1491.
12. K.M. Groves, S. Basu, S. Basu, C.S. Carrano, I. Mengistu, J. Pimenta-Lima, B. Rabiu,
O.Obrou, B. Damtie, G. Mengistu, P. Baki, GPS observations of the ionosphere in Africa:
First results from collaborations under the United Nations International Heliophysical
year basic space science initiative, The XXIX General Assembly of the International Union
of Radio Science (Union Radio Scientifique Internationale-URSI), August 07-16, 2008,
Chicago, USA.
13. T. Kassa, B. Damtie, S. Dejene, Virtual teaching aid for basic vector and kinematic operations
in high school Physics, The 26th Annual May Seminar, May 9-10, 2008, Bahir Dar
University, Ethiopia.
14. E. Shume, B. Damtie, Equatorial electrojet plasma waves, The 26th Annual May Seminar,
May 9-10, 2008, Bahir Dar University, Ethiopia.
15. Y., Dagne, B., Damtie, K., Groves, E., Shume, G., Mengistu, Temporal and spatial variation
of ionospheric scintillation observed in Ethiopia, The 26th Annual May Seminar, May
9-10, 2008, Bahir Dar University, Ethiopia.
16. M. Nigussie, B. Damtie, K. Yumoto, Temporal and spatial variation of ionospheric scintillation
observed in Ethiopia, The 26th Annual May Seminar, May 9-10, 2008, Bahir Dar
University, Ethiopia.
17. Baylie Damtie, Markku Lehtinen, and Gizaw Mengistu, An Ionospheric Radar Signal Estimation
by Means of an Adaptive Filter, IHY-Africa Space Weather Science and Education
Workshop, Nov 12-16, 2007.
18. Kaila, K., T. B¨osinger, and B. Damtie, Magneto-optical Ethiopian-Finn Observatory EFO,
33 rd Annual European Meeting on Atmospheric Studies by Optical Methods, Kiruna, 28
Aug -1 Sept, 2006.
19. Baylie Damtie, Tilmann B¨osinger, Ilya Usoskin, Establishing Cosmic Ray Station and
other space research facilities in Ethiopia, First International Heliophysical Year SCINDA
Workshop Cape Verde, July 10-14 2006.
20. Damtie, B., and Lehtinen, M., Incoherent Scatter Radar data analysis by means of inversion,
10th Inverse Days 15th-17th December 2004., Sodankyl¨a Geophysical Observatory,
Finland.
21. Damtie, B., Nygr´en, T., and Lehtinen, M., Mathematical inversion used as a decoding
filter in the analysis of the incoherent scatter radar measurements, Finnish physics days
20-22.3. 2003, University of Helsinki, Finland.
22. Damtie, B., Nygr´en, T., and Lehtinen, M., A -Based Signal Receiving ad Processing System
for Incoherent Scatter Radar,1st International Conference on Electrical and Computer
Engineering (ICECE 2003), Oct. 29-1 Nov., 2003, Bahir Dar University, Ethiopia.
23. Damtie, B., Nygr´en, T., and Lehtinen, M., A new method of analyzing Barkercoded incoherent
scatter radar experiments, Finnish physics days (14. - 16.3.2002), University of
Joensuu, Finland.

24. Damtie, B., Nygr´en, T., M. Lehtinen, and A. Huuskonen, Application of stochastic inversion
in the EISCAT incoherent scatter radar signal analysis, IX Meeting of Finnish
National COSPAR, Oct. 30-Nov 1, 2002, Oulu, Finland.
25. Damtie, B., Nygr´en, T., Lehtinen, M., and Huuskonen, A., Application of mathematical
inversion in the analysis of range-ambiguous incoherent scatter radar signals, 10th
International EISCAT Workshop, 23-27 July 2001, Tokyo, Japan.
26. Lehtinen, M., Markkanen, J., V¨a¨an¨anen, A., Huuskonen, A., Damtie, B., Nygr´en, T.,
Rahkola, J., A new incoherent scatter technique in the EISCAT Svalbard Radar, 10th
International EISCAT Workshop, 23-27 July 2001, Tokyo, Japan.
27. Damtie, B., Nygr´en, T., Lehtinen, M.S. and Huuskonen, A., Phase error analysis in the
EISCAT phase modulation scheme, 3-7 September 2000, The University of Warwick, UK.

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