Geophysical Research Division /
Finnish Meteorological Institute
URSI XXV National Convention on Radio Science
Säätytalo and Tieteiden talo, Helsinki, Finland
September 21-22, 2000
09.30-10.15: Opening Session (Säätytalo)
Risto Pellinen (Director of FMI/GEO)
Martti Hallikainen (Chairman of the Finnish URSI)
Risto Pirjola (Chairman of the Organizing Committee)
10.15-11.30: Plenary Session (Chair: Risto Pirjola) (Säätytalo)
10.15-10.45
Martti Tiuri (invited): Scientists and science policy in the knowledge society
10.45-11.30
Heikki Huomo (invited): Wireless Internet
11.30-13.00: Lunch Break
13.00-17.00: Parallel Sessions (Tieteiden talo)
1. Radars and Remote Sensing (Chair: Tapio Tuomi)
13.00-13.30
M. Uspensky (invited): SuperDARN: A global-scale network of HF and VHF radars for sensing backscatter from ionospheric irregularities in the E- and F-regions of the high-latitude ionosphere
13.30-14.00
R. King, A. Huuskonen, K. Leminen and H. Kärki (invited): Luosto: a new generation weather radar in Finland
14.00-14.30
M. Hallikainen (invited): Future trends in spaceborne radar technology and applications
14.30-15.00: Coffee Break
15.00-15.30
M. Lehtinen (invited): Development of new radar methods based on mathematical modelling of radar coding
15.30-15.45
J. Koistinen: The effect of bird migration on Doppler weather radar measurements
15.45-16.00
M. Engdahl: Helsinki and its surroundings seen with multitemporal INSAR
16.00-16.15
A. N. Arslan, J. Koskinen, J. Pulliainen and M. Hallikainen: The use of synthetic aperture radar data on modeling of forest canopy covered by snow
16.15-16.30
A. N. Arslan, W. Huining, J. Pulliainen and M. Hallikainen: Effective permittivity of wet snow
16.30-16.45
J. Praks: Polarimetric SAR image classification with normalized coherency matrix
16.45-17.00
Y. Zhang, S. Koponen, J. Pulliainen and M. Hallikainen: Turbidity detection using AVHRR satellite imagery in the Gulf of Finland
2. Electromagnetic Theory (Chair: Ismo Lindell)
13.00-13.30
S. Dudorov, D. Lioubtchenko, J. Mallat, J. Tuovinen and A. V. Räisänen: Low loss dielectric waveguides at 75-110 GHz frequency range
13.30-14.00
V. S. Möttönen, P. Piironen and A. V. Räisänen: Low-loss bias-T for 4-15 GHz
14.00-14.30
A. Hazmi, J. Rinne and M. Renfors: Transmission of DVB-T signal over cable TV network
14.30-15.00: Coffee Break
15.00-15.30
A. Viitanen: Chiral soft and hard surface waveguide mode transformers
15.30-16.00
S. Tretyakov and A. Sihvola: Onsager-Casimir principle and reciprocity of complex composite media
16.00-16.30
T. Uusitupa and K. Kärkkäinen: Studying photonic bandgap waveguides using FDTD
16.30-17.00
I. V. Lindell: Ideal boundary conditions in electromagnetics
Poster viewing during coffee breaks
18.00-20.00: Cocktail Party at FMI/GEO
All participants are welcome! Address: Vuorikatu 15A, 3rd floor (close to the Kaisaniemi Metro station)
1. Wireless Communication - Part I (Chair: Veikko Porra)
09.00-09.20
P. Eskelinen and H. Eskelinen: Improvements of welded RF components through computer simulations
09.20-09.40
P. Eskelinen: Performance limitations of tactical mobile VHF antennas
09.40-10.00
P. Eskelinen and P. Sjöman: A short performance evaluation of the Metsähovi clock arrangement for VLBI measurements
10.00-10.30: Coffee Break
10.30-10.50
J. Häkli, J. Säily, J. Ala-Laurinaho, J. Tuovinen and A. V. Räisänen: Current status of the submillimetre wave hologram compact antenna test range
10.50-11.10
J. Säily, J. Mallat and A. V. Räisänen: Development of a phase-locking system for submillimetre wave backward-wave oscillators
11.10-11.30
M. Kärkkäinen, J. Riska, P. Kangaslahti and V. Porra: LNA and mixer circuits for a 60 GHz Radio Front End
2. Space Weather (Chair: Hannu Koskinen)
09.00-09.30
S. Korpela and F. von Schoultz (invited): New European satellite navigation service Galileo
09.30-10.00
M. Poutanen (invited): Ionospheric effects in GPS observations
10.00-10.30: Coffee Break
10.30-11.00
T. Nygren, M. Lehtinen and E. D. Tereshchenko (invited): Determination of ionospheric electron density by means of satellite radiotomography
11.00-11.15
J. Mannermaa, K. Kalliomäki and T. Mansten: Detection of tracking loops performance of GPS receivers from PPS measurements
11.15-11.30
K. Kauristie, O. Amm, E.I. Kallio, P. Janhunen and A. Viljanen: Ground-based space weather observations using the MIRACLE system
11.30-11.45
J. Elovaara: Geomagnetically induced currents and their effects in the Finnish power system
11.45-12.00
A. Pulkkinen, K. Pajunpää, A. Viljanen, R. Pirjola, D. Boteler and L. Trichtchenko: Project on geomagnetically induced currents in the Finnish natural gas pipeline network
12.00-13.00: Lunch Break
13.00-16.30: Parallel Sessions (Tieteiden talo)
1. Wireless Communication - Part II (Chair: Martti Hallikainen)
13.00-13.40
J. Lähteenmäki (invited): Radiowave propagation aspects of mobile location techniques
13.40-14.05
H. Laitinen, T. Nordström and J. Lähteenmäki: Location of GSM terminals using a database of signal strength measurements
14.05-14.30
J. Saijets, M. Åberg and M. Andersson: CMOS RF models for mobile radio IC design
14.30-15.00: Coffee Break
15.00-15.25
V. Golikov, S. Hienonen, T. Sehm and P. Vainikainen: A passive intermodulation phenomenon in base station antenna design for mobile networks
15.25-15.50
C. Icheln and P. Vainikainen: Designing a dual-frequency balun to eliminate the effect of RF feed cables in measurements of small antennas
15.50-16.15
N. Y. Ermolova: Multiple-signal intermodulation in the nonlinear radio devices
2. Natural Electromagnetic Fields (Chair: Heikki Nevanlinna)
13.00-13.25
T. J. Tuomi: Multichannel lightning flashes detected in Finland in 1998-2000
13.25-14.00
J. Elovaara (invited): Co-operation of Fingrid and Finnish Meteorological Institute in questions related to natural electromagnetic fields
14.00-14.30
A. Väänänen: New research radars in Sodankylä
14.30-15.00: Coffee Break
15.00-15.25
N. Partamies, K. Kauristie, P. Eglitis and M. Uspensky: Sudden impulse events observed by magnetometers and coherent radars
15.25-15.50
R. Pirjola: Geoelectromagnetic modelling at the Finnish Meteorological Institute
15.50-16.15
J. J. Hänninen, I. V. Lindell and R. Pirjola: Exact image theory applied to geophysics
16.30-17.00: Closing Session including Young Scientist Award (Tieteiden talo)
Poster viewing during coffee breaks