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Professor atHelsinki University of Technology

Deanof the largest Finnish national graduate school GETA

Chairmanof the IEEE Finland Section

Headof the Signal Processing Laboratory

Tel:+358-9-4512 454

FAX:+358-9-460 224 or +358-40-601 2562

Address:P.O. Box 3000

FIN-02015 HUT

Finland

Tel:+358-9-5416 992

Address:

Veräjäpellonkatu 11

FIN-02600 ESPOO

Finland

**Mobile phone:** +358-40-5012 562

**Email:**Iiro.Hartimo@hut.fi
or hartimo@ieee.org

### Biography of Iiro Hartimo

Iiro Hartimo was born 1943 in Helsinki. He received the Dipl. Eng.(1969), Lic. Tech.(1975), and Dr. Tech.(1986) degrees in Computer Science from Helsinki University of Technology, Finland. In 1979 he became Associate Professor in Technical Physics and in 1988 he became Professor of Computer Science at the Faculty of Electrical Engineering. He has been member of the Executive Committee of IEEE Finland Section since it was established in 1971 and Chairman from 1998 on. He was the Chairman of Technical Program Committee of the 1988 IEEE Symposium of Circuits and Systems and he has been a member of several other international conference program committees. He is an article reviewer of several international scientific journals and conferences. He is also Chairman and member of the editorial boards of the journals Sähkö & Tele and the European Transactions on Telecommunications and Related Technologies, respectively. He is member of the IEC working group SC3A/WG2 which has created the standards (IEC 617-12 and IEC 617-13) to depict digital and analogue integrated circuits. His research interests lay in the fields of n implementation methods of digital signal processing algorithms and in parallel computing architectures. Dr. Hartimo is Senior member of IEEE, member of ACM, member of EUROMICRO, EURASIP and member of several national engineering organisations.

Professor Hartimo is the dean of the post-graduate school GETA, the largest of Finnish post-graduate schools. GETA has nearly 300 students over 70 of whom are funded by the GETA-scholarship. He is member of the science and technology board at Finnish Academy. He is member of the advisory board of Infotech Oulu. He is member of the board of 'Keksintösäätiö' (Foundation for Finnish inventions).

- Member of the vocabulary group of the Finnish Society of
Information Processing; the author of ‘ATK-sanakirja’.

- Member of several international conference program committees,
e.g., ICC'01, ECCTD'01, and FINSIG'01

- Article reviewer of several international scientific journals
and conferences.

- The Finnish delegate of the IEEE Region 8 Committee (Europe,
Asia, Africa)

**External evaluator of several
nomination procedures for professorships:**

- External evaluator of the Dr. tech. thesis by Sam Sandqvist, Helsinki University of Technology, 1999
- External evaluator of the Dr. tech. thesis by Jarno Knuutila, Tampere University of Technology, 1999
- External evaluator for the fulfillment of a professorship in ‘Computer Technology’ in Tampere University of Technology, 1999
- External evaluator for the fulfilment of a ‘universitetslektorat’ in Linköping University, 1999
- External evaluator for the fulfilment of a professorship in ‘System on Chip’ in Lund Institute of Technology,1999
- External evaluator for the fulfilment of a ‘professorat II i teleteknikk (konstruksjon av signalbehandlinssystem)’ in Norges teknisk-naturvetenskapelige University, 1999
- Opponent in the dissertation of Kent Palmqvist, Linköping University, 1999
- External evaluator for the fulfilment of a professorship in electronics, at Oulu University, 2000
- External evaluator for the fulfilment of a professorship in information science, at Åbo Academi, 2000
- External evaluator for the fulfilment of a professorship in electronics, at Tampere University of Technology, 2000
- External evaluator for the fulfilment of a professorship in 'Datorteknik', Linköping University, 2001
- External evaluator for the fulfilment of a professorship in ‘Computer Technology’ in Tampere University of Technology, 2001
- External evaluator for the fulfilment of a professorship in ‘Embedded Computer Technology’ in Finnish Technical Research Center, Oulu, 2001

**Recognitions:**

- IEEE Centennial Medal, 1984
- IEEE Millenium Medal 2000
- Certificate of appreciation, IEEE Communications Society, 2001
- Certificate of appreciation and recognition, IEEE Region 8, 2001

**The scientific publications of Iiro
Hartimo from recent years: **

Articles in international scientific periodicals

- Timo I. Laakso and Iiro O. Hartimo, "Noise reduction in recursive digital filters using high-order error feedback,"
IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-40, pp. 1096-1107, May 1992.- T. Laakso, P. S. R. Diniz, I. Hartimo, and T. C. Macedo Jr. "Elimination of zero-input and constant-input limit cycles in single-quantizer recursive filter structures,"
IEEE Transactions on Circuits and Systemsvol. 39 No 9, September 1992, pp. 638 - 646- L. Wang and I. Hartimo, "Systolic realisation for 1-D circular convolution using the Chinese reminder theorem",
Electronics Letters, 21st January 1993, Vol. 29, No. 2.- T. Laakso, B. Zeng, I. Hartimo, and Y. Neuvo, "Elimination of Limit Cycles in Floating-Point Implemented of Direct Form Recursive Digital Filters",
IEEE Trans. on Circuits and Systems - II: Analog and Digital Signal Processing, Vol. 41, 1994, No 3, p. 308-313.- Honkanen, T. I. Laakso, S. J. Ovaska, and I. O. Hartimo, "Lowpass IIR predictors for discrete-time signal processing,"
Digital Signal Processing, vol. 5, no. 3, pp. 133-139, July 1995.- J. Kauraniemi, T. I. Laakso, I. Hartimo, and S. J. Ovaska, "Delta operator realizations of direct form IIR filters," submitted to
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, Volume: 45 no 1 , Jan. 1998 , Page(s): 41 -52- Dimitrov V., Hartimo I., and Jullien G. "Exponentation Based on Binary-Fermat Number Representation", submitted to
IEEE Trans. on Computers.

Articles in international conferences and compendiums

- T. Laakso, B. Zeng, I. Hartimo, and Y. Neuvo: "Reduction of Floating-Point Roundoff Noise in Recursive Digital Filters with Error Feedback", Proc. IEEE International Conference on Systems Engineering, Pennsylvania, Aug. 1990
- T. Laakso, B. Zeng, I. Hartimo, and Y. Neuvo: "Elimination of Limit Cycles in Floating-Point Recursive Digital Filters with Error Feedback", Proc. of 33rd Midwest Symposium on Circuits and Systems, Calgary, Canada, Aug. 1990
- T. Reichler, I. Hartimo, and J. Jaatinen, "Automatic Signal Processor Code Generation: Matrix Reduction Based Module Optimization", Proc. of 1990 IEEE International Symposium on Circuits and Systems, New Orleans, U.S.A., May 1 - 3, 1990
- T. Laakso, P.S.R. Diniz, and I. Hartimo: "General Criterion for the Absence of Limit Cycles in Filter Structures with a Single Quantizer", Proc. IEEE International Conference on Acoustics Speech and Signal Processing, Toronto, Canada, May 14-17, 1991
- B. Zeng, T. Laakso, I. Hartimo, and Y. Neuvo: "Error Feedback for Floating-Point Cascade-Form Digital Filters", Proc. IEEE International Conference on Acoustics Speech and Signal Processing, Toronto, Canada, May 14-17, 1991
- Macedo Jr., T. Laakso, P. S. R. Diniz, and I. Hartimo, "Reformulation of Chang's criterion for the absence of limit cycles using bilinear transform", IEEE Int. Symp. on Circuits and Systems, Westin Plaza, Singapore, June 1991.
- L. Wang, I. Hartimo, and T. Laakso, "A Novel Double-Decomposition Method for Systolic Implementation of DFT", Poster on International Conference of Applications-Specific Array Processors, Sept. 2.-4.,1991, Costa Brava, Spain
- J. Ranta, E. Aalto, T. Laakso, and I. Hartimo, "Bioelectronic analyzer for Raw Water Monitoring", Proceedings of the International Conference on DSP Applications & Technology, Oct. 28-31, 1991, Berlin.
- Timo I. Laakso and Iiro Hartimo, "How to determine the internal wordlength in floating-point implementations of recursive filter?," in Proc. European Signal Processing Conference (EUSIPCO'92), pp. 251-254, Brussels, Belgium, Aug. 25-28, 1992.
- L. Wang, I. Hartimo, and T. Laakso, "A novel double-decomposition method for systolic implementation of DFT," in Proc. IEEE Int. Symp. on Circuits and Systems (ISCAS'92), pp. 1085-1088, San Diego, California, May 10-13, 1992.
- Ling Wang and Iiro Hartimo, "An alternative systolic array for QRD-RLS adaptive system identification", in Proc. of The Int. Conf. on Signal Processing Applications & Technology (ICSPAT'92), pp. 583-592, Boston, Massachusetts, Nov. 2-5, 1992.
- L. Wang and I. Hartimo, "Reduced linear systolic implementations of the discrete Hartley transform", Proceedings of the Fifth Digital Signal Processing Workshop, Starved Rock Lodge, Starved Rock State Park, Illinois, U.S.A. September 13-16, 1992
- L. Wang and I. Hartimo, "Systolic implementation of the orthogonal-inverse updating algorithm", Proceedings of the 1992 International Conference on Artificial Neural Networks (ICANN-92), Brighton, United Kingdom, 4-7 September, 1992
- L. Wang and I. Hartimo, "Systolic array for 2-D circular convolution using the Chinese reminder theorem", proc. IEEE International Symposium on Circuits and Systems, May 3-6, 1993
- L. Wang and I. Hartimo, "A Pipelined Systolic Architecture for 2-D DFT", proc TENCON '93, Beijing, China, 1993.
- L. Wang and I. Hartimo, "Systolic Implementation for Exact Initialization of the Orthogonal - Inverse Updating Algorithm", proc. International Conference on Signal Processing '93, Beijing, China, 1993.
- R. Baghaie and I. Hartimo, "An Efficient New Systolic Architechture for the Solution of Discrete Fourier Transform", IEEE Workshop on VLSI Signal Processing, Eindhoven, the Netherlands, 20-22 October 1993.
- J. Honkanen, T. I. Laakso, S. J. Ovaska, and I. O. Hartimo, "Design of optimal predictors with lowpass characteristics," in Proceedings of the 11th European Conference on Circuit Theory and Design (ECCTD-93), Davos, Switzerland, August 30 - September, 1993
- L. Wang and I. Hartimo, "Systolic Architectures for Computing 2-D DCT Based on CORDIC Techniques", Proc. MELECON, Atalaya, Turkey, April 1994
- L. Wang and I. Hartimo, "Systolic Array for Binary Multiplier", 1994 International Symposium on Speech, Image, & Neural Networks, Hong Kong, April 1994
- R. Baghaie, I. Hartimo, "A Reconfigurable Systolic Architecture for the Solution of the DFT and the DHT", Nordic Signal Processing Symposium NORSIG-94, Ålesund, Norway, June 2–4, 1994, p. 19-26.
- A. Huang, T. I. Laakso, S. J. Ovaska, and I. O. Hartimo, "Predictive power estimation of complex-valued signals," in Proceedings of the 38th Midwest Symposium on Circuits and Systems (MWSCAS-95), Rio de Janeiro, Brazil, August 13-16, 1995.
- J. Kauraniemi, T. I. Laakso, I. Hartimo, and S. J. Ovaska, "Delta operator realizations of recursive digital direct form filters," in Proceedings of the 12th European Conference on Circuit Theory and Design (ECCTD-95), Istanbul, Turkey, August 27-30, 1995
- J. Kauraniemi, T. I. Laakso, I. Hartimo, and S. J. Ovaska, "Delta operator realized digital direct form filters," in Proceedings of the 1995 Finnish Signal Processing Symposium (FINSIG-95), Espoo, Finland, June 2, 1995, pp. 113- 117
- Markku Eräluoto, Juha Kauraniemi, and Iiro Hartimo, "VLSI Implementation for High-Speed Digital Filtering," ISCAS '96.
- A. Huang, T. I. Laakso, S. J. Ovaska, and I. Hartimo, "Optimal Linear Power Estimation," ISCAS '96
- Eräluoto M., Kauraniemi J., Hartimo I. VLSI Implementation of High Speed Digital Filters Using Direct form Delta Structures, 1996 Midwest Symposium on Circuits and Systems, Ames, Iowa, USA, August 18-21, 1996.
- Eräluoto M., Hartimo I. Reducing Implementation Complexity of Fast Sampled Digital IIR Filters, Third IEEE International Conference on Electronics, Circuits and Systems, Rhodos, Greece, October 13-16, 1996.
- Eräluoto M., Hartimo I. Implementation Complexity of Fast Sampled Delta Operator Filters, 1996 IEEE Nordic Signal Processing Symposium NORSIG 96, Espoo, Finland, September 24-27, 1996, pp. 171-174.
- Huang A., Laakso T. I., Ovaska S. J., Hartimo I. O. Optimal Linear Filtering for Powef Estimation of Slowly-Varying Complex-Valued Signals, 3rd International Conference on Signal Processing, ICSP´96, October 14-18, 1996, Beijing, China.
- J. Kauraniemi, J., Laakso, T. I., Hartimo, I., Ovaska, S. J. Roundoff Noise Minimization in a Direct Form Delta Operator Structure, 1996 IEEE International Conference on Acoustics, Speech & Signal Processing, ICASSP 96, Atlanta, Georgia, USA, May 7-10, 1996, pp. 1371-1374.
- H. Liang, S. Lukkarinen, I. Hartimo, "Heart Sound Segmentation Algorithm Based on Heart Sound Envelogram", Computers in Cardiology'97, Computers in Cardiology '97, Lund, Sweden, September 1997. pp.105-108.
- Liang, H., Lukkarinen, S. & Hartimo, I. "A Heart Sound Segmentation Algorithm Using Wavelet Decomposition and Reconstruction", EMBS '97, Chicago, USA, October 1997. pp.1630-1633.
- Liang, H.; Hartimo, I "A heart sound feature extraction algorithm based on wavelet decomposition and reconstruction". Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE Volume: 3 , 1998 , Page(s): 1539 -1542 vol.3
- Liang, H.; Lukkarinen, S.; Hartimo, I. "A boundary modification method for heart sound segmentation algorithm", Computers in Cardiology 1998 , 1998 , Page(s): 593 -595
- Huang, A.; Tanskanen, J.M.A.; Hartimo, I.O. "Design of optimum power estimator based on Wiener model applied to mobile transmitter power control", Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on Volume: 5 , 1998 , Page(s): 249 -252 vol.5
- Tanskanen, J.M.A.; Huang, A.; Hartimo, I.O. "Predictive power estimators in CDMA closed loop power control" Vehicular Technology Conference, 1998. VTC 98. 48th IEEE Volume: 2 , 1998 , Page(s): 1091 -1095 vol.2
- Eräluoto, M.; Hartimo, I. "Design of low-power narrowband digital IIR filters using delta operator" Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on Volume: 1 , 1998 , Page(s): 437 -440 vol.
- I. Hartimo (translation in Finnish) Standard SFS-EN 60617-12, Graphical Symbols for Diagrams, Part 12: Binary Logic Elements, Suomen Standardisoimisliitto SFS, 189p, 1999
- I. Pietarinen, I. Hartimo, P. Kilpeläinen, T. Kotovirta, K. Lång, S. Mattila, M. Niskanen, E. Stenvall, and S. Tapaninen,
"Dictionary of Information Processing",10^{th}edition, Suomen Atk-kustannus Oy, 489 p. 1999 (in 8 languages)

Articles in national scientific conferences and compendiums

- T. Laakso, B. Zeng, I. Hartimo, and Y. Neuvo: "Analysis of Floating-Point Roundoff Errors in Recursive Digital Filters", proc. URSI/IEEE XVI National Convention on Radio Science, Kuopio, Nov. 5.-6., 1990
- R. Baghaie and I. Hartimo "A Digital Filter Design and Implementation Laboratory Project: A Signal Oriented Approach" in Proceedings of the 1994 IEEE SP/CAS TUT’94, Tampere, Finland, May 1994. pp. 97...100
- A. Huang, T. I. Laakso, S. J. Ovaska, and I. Hartimo, "On schemes for power prediction of complex-valued signals," in Proceedings of the 1995 Finnish Signal Processing Symposium (FINSIG-95), Espoo, Finland, June 2, 1995, pp. 55-58
- J. Kauraniemi, T. I. Laakso, I. Hartimo, and S. J. Ovaska, "Delta operator realized digital direct form filters," in Proceedings of the 1995 Finnish Signal Processing Symposium (FINSIG-95), Espoo, Finland, June 2, 1995, pp. 113- 117

Iiro O. Hartimo <Iiro.Hartimo@hut.fi>