Torfinn Lindem

Image of Torfinn Lindem
Norwegian version of this page
Room FV326
Visiting address Sem Sælands vei 24 Fysikkbygningen 0371 Oslo
Postal address Postboks 1048 Blindern 0316 Oslo

Academic Interests

Space technology / Smart Sensors and Embedded Systems / Hydroacoustics / SONAR systems


Higher education and employment history

RNAF - communication system / Tacktical Air Navigation Cand.Real Physics/Electronics UiO - NTNF fellow - SIMRAD Subsea AS


  • Knigt -The Icelandic Order of the Falcon 


  • Head of Study Program ELDAT - Electronics and Computer Technology
  • Group leader Electronic group Dept. of Physics 
  • Project leader CUBESTAR


 Welfare Tools - Inst. of Marine Research

Tags: Space technology, Instrumentation, sonarsystems, Hydroacoustics


  • Bekkeng, Tore Andre; Helgeby, Espen Sørlie; Pedersen, Arne; Trondsen, Espen; Lindem, Torfinn & Moen, Jøran Idar (2019). Multi-Needle Langmuir Probe System for Electron Density Measurements and Active Spacecraft Potential Control on CubeSats. IEEE Transactions on Aerospace and Electronic Systems. ISSN 0018-9251. 55(6), p. 2951–2964. doi: 10.1109/TAES.2019.2900132.
  • Tresvig, Johan Ludvig & Lindem, Torfinn (2016). Investigating the Coupling Effects between CubeSTAR's Communication Antenna and Deployable Payload Sensors [Measurements Corner]. IEEE Antennas & Propagation Magazine. ISSN 1045-9243. 58(1), p. 90–94. doi: 10.1109/MAP.2015.2501234.
  • Tresvig, Johan Ludvig & Lindem, Torfinn (2015). A miniaturized subpayload system used for measurements in the ionosphere - A design concept. IEEE Aerospace and Electronic Systems Magazine. ISSN 0885-8985. 30(4), p. 24–28. doi: 10.1109/MAES.2015.140154.
  • Tresvig, Johan Ludvig & Lindem, Torfinn (2015). Design of a communication system for a nanosatellite space weather mission. IEEE Aerospace and Electronic Systems Magazine. ISSN 0885-8985. 29(11), p. 22–29. doi: 10.1109/MAES.2014.130177.
  • Bekkeng, Tore Andre; Jacobsen, Knut Stanley; Bekkeng, Jan Kenneth; Lindem, Torfinn; Lebreton, JP & Moen, Jøran Idar (2010). Design of a multi-needle Langmuir probe system. Measurement Science and Technology. ISSN 0957-0233. 21(8). doi: 10.1088/0957-0233/21/8/085903.
  • Balk, Helge & Lindem, Torfinn (2000). Improved fish detection in data from split-beam sonar. Aquatic Living Resources. ISSN 0990-7440. 13, p. 297–303.
  • Rudstam, Lars G.; Lindem, Torfinn & LaBar, G. (1999). Methodology for Target Strength Measurements (With special reference to in situ techniques for fish and mikro-necton) The single beam analysis. In Ona, E (Eds.), ICES Cooperative Research Report No.235. International Council for the Exploration of the Sea, Copenhagen K Denmark. p. 6–13.
  • Rudstam, Lars G.; Hansson, Sture; Lindem, Torfinn & Einhouse, Donald W. (1999). Comparison of target strength distributions and fish densities obtained with split and single beam echo sounders. Fisheries Research. ISSN 0165-7836. p. 207–214.

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  • Grande, Jøran; Birkeland, Roger; Lindem, Torfinn; Schlanbusch, Rune; Houge, Torbjørn & Mathisen, Stian Vik (2013). EDUCATIONAL BENEFITS AND CHALLENGES FOR THE NORWEGIAN STUDENT SATELLITE PROGRAM.
  • Tresvig, Johan Ludvig & Lindem, Torfinn (2011). Demonstration of a Space Weather experiment on a nano-satellite.
  • Balk, Helge; Kubecka, Jan & Lindem, Torfinn (2010). Detection, tracking and sizing of fish in data from DIDSON multibeam sonars.
  • Lindem, Torfinn (2010). CubeSTAR – UiO-studenter bygger fremtidens satellitt for overvåking av romvær.
  • Lindem, Torfinn (2010). Studentsatellitten CubeSTAR.
  • Tresvig, Johan Ludvig & Lindem, Torfinn (2009). CubeSTAR - Vision: Demonstrate a new Space Weather satellite concept.
  • Bekkeng, Tore Andre; Bekkeng, Jan Kenneth; Lindem, Torfinn; Moen, Jøran Idar; Pedersen, Arne & Trondsen, Espen (2009). Development Of A Multi-Needle Langmuir Probe System.
  • Balk, Helge; Lindem, Torfinn & Kubecka, Jan (2009). New Cubic Cross filter detector for multi beam data recorded with DIDSON acoustic camera.
  • Balk, Helge & Lindem, Torfinn (2009). Target detection in data from splitbeam echosounders and multi beam sonar systems.
  • Lindem, Torfinn (2008). CubeStar - en teknologisk utfordring.
  • Lindem, Torfinn (2008). CubeStar - Layout og kravspesifikasjoner.
  • Lindem, Torfinn (2008). "Space Technology" ved UiO.
  • Lindem, Torfinn (2008). Instrumentering for CubeSat.
  • Balk, Helge & Lindem, Torfinn (2008). Analysis and visualization of data from DIDSON Acoustic camera.
  • Lindem, Torfinn (2008). Fysikk og Teknologi - Elektronikk.
  • Balk, Helge; Lindem, Torfinn; Kubecka, Jan & Frank, Knudsen (2007). Recent advances in solving signal-to-noise problems in fisheries acoustics.
  • Balk, Helge & Lindem, Torfinn (2007). Analysis of data from high frequency identification sonars combined with data from conventional echo-sounders.
  • Strande, Mona & Lindem, Torfinn (2006). Fysikere lover trådløs strøm. [Newspaper]. Teknisk Ukeblad.
  • Jemterud, Torkild & Lindem, Torfinn (2006). Verd å vite - Radio kringkasting 100 år. [Radio]. NRK.
  • Lindem, Torfinn & Larsen, Kristoffer Vikebak (2006). Vektløse studenter. [Internet].
  • Balk, Helge; Lindem, Torfinn & Kubecka, Jan (2006). Enhenced Crossfilter detector for target detection in data from echosounders.
  • Lindem, Torfinn; Øye, Henning Karleif & Farnes, Jarle (2006). MEMS Accelerometer and Gyro Experiment in Sounding Rockets.
  • Balk, Helge; Lindem, Torfinn & Kubecka, Jan (2005). New single echo detection methods for shallow water fisheries acoustics.
  • Balk, Helge; Lindem, Torfinn & Kubecka, Jan (2005). New single echo detection methods for shallow water fishery acoustics.
  • Balk, Helge & Lindem, Torfinn (2003). Fish detection based on spectral differences in the echogram's range and temporal domain.
  • Balk, Helge & Lindem, Torfinn (2003). A new method for single target detection.
  • Balk, Helge & Lindem, Torfinn (2002). Fish detection in rivers with split-beam sonars.
  • Lindem, Torfinn; Balk, Helge; Vibeke, J. & Kjølerbakken, K. M. (2002). Measurements of acoustic sound fields in a shallow river.
  • Lindem, Torfinn (2001). EK60 Split Beam Sonar used in shallow water.
  • Lindem, Torfinn (2001). Sound measurements under ice.
  • Lindem, Torfinn; Balk, Helge & Knudsen, Frank R. (1999). Sound propagation through shallow water can make unexpected modification to fish echoes recorded with a horizontally looking split beam system.
  • Lindem, Torfinn (1999). Data from single beam sonar analysed with HADAS. (Hydro Acoustic Data Acquisition System).
  • Balk, Helge & Lindem, Torfinn (1999). Fish tracking in shallow water by image processing.
  • Lindem, Torfinn & Balk, Helge (1999). Problems related to Time Varied Gain (TVG) and phase measurements with elliptic split beam transducers in shallow water, - some observations.
  • Balk, Helge & Lindem, Torfinn (1998). Hydroacoustic fish counting in rivers and shallow waters, with focus on problems related to tracking in horizontal scanning sonars.
  • Juell, Jon-Erik; Lindem, Torfinn; Fosseidengen, Jan Erik; Al Houari, Driss & Bjordal, Åsmund (1995). Hydroakustisk overvåkning og styring av lakseproduksjon. Fisken og Havet. ISSN 0071-5638.
  • Lindem, Torfinn (2003). Comparison and development of assessment methods for pelagic fish stocks in northern great lakes. Nordisk ministerråd.

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Published Nov. 4, 2010 12:23 PM - Last modified Nov. 1, 2021 11:14 AM