UVic ECE Panajotis Agathoklis Publications

Journal Publications: 1980 - 1989

Journal Publications: 1990 - Present

Conference Publications: 1979 - 1989

Conference Publications: 1990 - Present

Contribution to Books

If you would like a reprint send a message to pan@ECE.UVic.CA

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Journal Publications: 1980 - 1989

1. Agathoklis, P., E.I. Jury and M. Mansour. "Evaluation of quantization error in two-dimensional digital filters", IEEE Trans. on Acoustics, Speech and Signal Processing, vol. ASSP-28, pp. 273-279, 1980.

2. Agathoklis, P., E.I. Jury and M. Mansour. "A note on the 2-D partial fraction expansion", IEEE Trans. on Circuits and Systems, vol. CAS-27, pp. 719-721, 1980.

3. Agathoklis, P., E.I. Jury and M. Mansour. "The margin of stability of 2-D linear discrete systems", IEEE Trans. on Acoustics, Speech and Signal Processing, vol. ASSP-30, pp. 869-873, 1982.

4. Hamza, M.H., P. Agathoklis and W.C. Chan. "A combined self-tuning and integral controller for load-frequency control of interconnected power systems", Regelungstechnik, vol. 30, pp. 226-232, 1982.

5. Agathoklis, P., and M. Mansour. "Sufficient conditions for instability of two- and higher-dimensional discrete systems", IEEE Trans. on Circuits and Systems, vol. CAS-29, pp. 486-488, 1982.

6. Agathoklis, P., and L.T. Bruton. "Practical BIBO-stability of n-dimensional discrete systems", IEEE Proc., Part G, pp. 236-242, Dec. 1983.

7. Agathoklis, P., and M.H. Hamza. "Comparison of three algorithms for load frequency control", Electrical Power Systems Research, vol. 7, pp. 165-172, 1984.

8. Agathoklis, P., E.I. Jury and M. Mansour. "Criteria for the absence of limit cycles in two-dimensional discrete systems", IEEE Trans. on Acoustics, Speech and Signal Processing, vol. ASSP-32, pp. 432-434, Apr. 1984.

9. Agathoklis, P., and M. Mansour. "Coefficient ranges for stability of 2-D polynomials", Systems and Control Letters, vol. 4, pp. 169-173, May 1984.

10. Agathoklis, P., L.T. Bruton and N.R. Bartley. "The elimination of spikes in the magnitude frequency response of 2-D discrete filters by increasing the stability margin", IEEE Trans. on Circuits and Systems, vol. CAS-32, pp. 451-459, 1985.

11. Agathoklis, P., and M.H. Hamza. "A recursive finite memory digital filter", IEE Proc., Part G, vol. 132, no. 4, pp. 119-122, 1985.

12. Anderson, B.D.O., P. Agathoklis, E.I. Jury and M. Mansour. "Stability and the matrix Lyapunov equation for discrete 2-dimensional systems", IEEE Trans. on Circuits and Systems, vol. CAS-33, pp. 261-267, Mar. 1986.

13. Lu, Wu-Sheng, A. Antoniou and P. Agathoklis. "Stability of 2-D digital filters under parameter variations", IEEE Trans. on Circuits and Systems, vol. CAS-33, pp. 476483, May 1986.

14. Agathoklis, P. "A note on the frequency dependent Lyapunov equation", IEEE Trans. on Circuits and Systems, vol. CAS-34, pp. 974-975, Aug. 1987.

15. Agathoklis, P., "The Lyapunov equation for n-dimensional discrete systems", IEEE Trans. on Circuits and Systems, vol. 35, pp. 448-451, April 1988.

16. Agathoklis, P., "Lower bounds for the stability margin of discrete 2-dimensional systems based on the 2-dimensional Lyapunov equation", IEEE Trans. on Circuits and Systems, vol. 35, pp. 745-749, June 1988.

17. Agathoklis, P., and V. Sreeram, "Truncation criteria for model reduction using balanced realization", Electronics Letters, vol. 24, pp. 837-838, July 1988.

18. Agathoklis, P., and S. Foda, "On the characteristic polynomial assignment in 2-D discrete systems", IEE Proc. Part D, vol. 135, pp. 253-256, July 1988.

19. Foda, S., and P. Agathoklis, "On the stability of differential multipass processors", Electronics Letters, vol. 24, pp. 1016-1017, Aug. 1988.

20. Agathoklis, P., and S. Foda, "Stability and the matrix Lyapunov equation of delay differential systems", International Journal of Control, vol. 49, no. 2, pp. 417-432, 1989.

21. Sreeram, V., and P. Agathoklis, "Model reduction using balanced realizations with improved low frequency behaviour", Systems and Control Letters, vol. 12, pp. 33-38, 1989.

22. Agathoklis, P., and V. Sreeram, "Lower bounds for the stability margin of continuous systems based on weighted performance criteria", Proceedings of IEE, Part D, vol. 136, no. 2, pp. 63-67, March 1989.

23. Agathoklis, P., E.I. Jury and M. Mansour, "The discrete-time strictly-bounded-real lemma and the computation of positive definite solutions to the 2-D Lyapunov equation", IEEE Trans. on Circuits and Systems, vol. 36, pp. 830-837, June 1989.

24. Agathoklis, P., "Conditions for the 2-D characteristic polynomial of a matrix to be very strict Hurwitz", IEEE Trans. on Acoustics, Speech and Signal Processing, vol. ASSP-37, pp. 1284-1286, August 1989.

25. Agathoklis, P., "Some aspects of developing a modern engineering graphics course", IEEE Trans. on Education, vol. 32, pp. 439-442, November 1989.

Journal Publications: 1990 - Present

26. Agathoklis, P., and V. Sreeram, "Identification and model reduction from impulse response data", International Journal of System Science, vol. 21, pp. 1541-1552, August 1990.

27. Agathoklis, P., and H. Xu, "A generalized algorithm for the recursive implementation of polynomial filters", Journal of the Franklin Institute, vol. 327, pp. 805-818, October 1990.

28. Agathoklis, P., and S. Foda, "Recursive implementation of 2-D finite memory filters", Signal Processing, vol. 21, no. 3, pp. 251-260, November 1990.

29. Sreeram, V., and P. Agathoklis, "Model reduction of linear discrete systems via weighted impulse response grammians", International Journal of Control, vol. 53, no. 1, pp. 129-144, Jan. 1991.

30. Sreeram, V., and P. Agathoklis, "A new bound for stability margin of linear continuous systems", Proceedings of IEE, Part-D, vol. 138, no. 2, pp. 151-152, March 1991.

31. Agathoklis, P., E.I. Jury, and M. Mansour, "Algebraic necessary and sufficient conditions for the very strict Hurwitz property of a 2-D polynomial", Multidimensional Systems and Signal Processing Journal, vol. 2, no. 1, pp. 45-53, Mar. 1991.

32. Sreeram, V., and P. Agathoklis, "Solution of the Lyapunov equation with system matrix in companion form ", Proc. of IEE, Part D, vol. 138, no. 6, Nov. 1991.

33. Sreeram, V., F. El Guibaly and P. Agathoklis, "Systolic arrays for implementation of finite memory filters", International Journal of Electronics., vol. 72, no. 1, pp. 37-44, Jan. 1992.

34. Sreeram, V., and P. Agathoklis, "Design of linear phase IIR filters via impulse response grammians", IEEE Trans. on Signal Processing, vol. 40, pp. 389-394, Feb. 1992.

35. Foda, S., and P. Agathoklis, "Control of the metal rolling process: A multidimensional system approach", Journal of the Franklin Institute, pp. 317-332, Feb. 1992.

36. Sreeram, V. and P. Agathoklis, "Discrete systems reduction via impulse response gramians and its relation to q-Markov covers", IEEE Trans. on Automatic Control, vol. 37, pp. 653-658, May 1992.

37. Agathoklis, P., "The double bilinear transformation for 2-D systems in state-space descriptions", IEEE Trans. on Signal Processing, vol. 41, pp. 994-996, Feb. 1993.

38. Agathoklis, P. E.I. Jury, and M. Mansour, "Algebraic necessary and sufficient conditions for the stability of 2-D discrete systems", IEEE Trans. On Circuits and Systems, Part II Analog and Digital Signal Processing, vol. 40, pp. 251-258, Apr. 1993.

39. Sreeram, V. and P. Agathoklis, "On the theory of state covariance assignment for single-input discrete linear systems", IEEE Trans. on Automatic Control., vol. 38, pp. 1111-1115, July 1993.

40. Agathoklis, P., "Comments on orthogonal realization of first-order allpass filters for two-dimensional signals", Multidimensional Systems and Signal Processing Journal., vol. 4, pp. 187-188, 1993.

41. Sreeram, V. and P. Agathoklis, "Model reduction of linear continuous systems via weighted impulsed-response grammians", IEE Proceedings, Part-D, vol. 140, no. 5, pp. 345-352, Sep. 1993.

42. Sreeram, V. and P. Agathoklis, "On the computation of the Gram matrix in time domain", IEEE Trans. Automatic Control., vol. 38, pp. 1516-1520, Oct. 1993.

43. Sreeram, V., P. Agathoklis and M. Mansour, "The generation of q-Markov covers via the inverse solution to the Lyapunov equation", IEEE Trans. on Automatic Control., vol. 39, pp. 381-385, Feb. 1994.

44. Sreeram, V. and P. Agathoklis, "On the properties of Gram matrix", IEEE Trans. on Circuits and Systems, Part I, vol. 41, pp. 234-237, Mar. 1994.

45. Sreeram, V. and P. Agathoklis, "The discrete-time q-Markov covers models with improved low-fequency approximation", IEEE Transactions on Automatic Control., vol. 39, pp. 1102-1105, May 1994.

46. Tawfik, A., F. El-Guibaly, M. Fahmi, E. Abdel-Raheem and P. Agathoklis, "High-speed twoÕs complement fixed-point inner-product processor", Canadian Journal of Electrical and Computer Engineering, vol. 19, no. 4, pp. 187-191, Oct. 1994.

47. Netto, S.L., P.S.R. Diniz and P. Agathoklis, "Adaptive IIR filtering algorithms for system identification: A general framework", IEEE Trans. on Education, vol. 38, no. 1, pp. 54-66, Feb. 1995.

48. Tawfik, A., P. Agathoklis, and F. El-Guibaly, "New low roundoff noise realization of second-order IIR digital filter", IEEE Trans. on Signal Processing, vol. 43, pp. 1255-1258, May 1995.

49. Tawfik, A, F. El-Guibaly, and P. Agathoklis, "Systolic implementation of fixed-point state-space digital filter", IEE Proc., Pt. G, vol. 142, pp. 193-199, June 1995

50. Xiao, C., P. Agathoklis, and D.J. Hill, "On the positive definite solutions to the 2-D continuous time Lyapunov equation", accepted for publication in Multidimensional Systems and Signal Processing.

51. Holford, S. and P. Agathoklis, "The use of model reduction techniques for designing IIR filters with linear phase in the passband", accepted for publication in IEEE Trans. on Signal Processing.

52. Kallenakis, P. Agathkolis, and A. Tawfik, "A note on the orthogonal realization of all-pass digital filters and their finite wordlength effects", accepted for publication in IEEE Trans. on Signal Processing.

53. Xiao, C., D.J. Hill, and P. Agathoklis, "On stability and the Lyapunov equation for
n-dimensional digital sytems", accepted for publication in IEEE Trans. on Circuits and Systems, Part I.

Completed to February 13, 1996


Conference Publications: 1979 - 1989

1. Agathoklis, P., F.E. Cellier, M. Djordjevic, P.O. Grepper and F.J. Kraus, "Educational aspects of using computer aided design in automatic control", preprints of the IFAC Symp. on Computer Aided Design of Control Systems, Zurich, Switzerland, pp. 441-446, 1979.

2. Agathoklis, P., P.O. Grepper, W. Kaiser and R. Studer, "Optimal steady-state decoupling of linear systems with prescribed degree of stability", preprints of the IFAC Symp. on Computer Aided Design of Control Systems, Zurich, Switzerland, pp. 207-215, 1979.

3. Hamza, M.H., P. Agathoklis and W.C. Chan, "Adaptive load-frequency control", in Proc. IASTED Conf. on Alternative Energy Sources and Technology, San Francisco, USA, pp. 187-192, 1981.

4. Agathoklis, P., E.I. Jury and M. Mansour, "Limit cycle studies in two- and higher-dimensional systems", in Proc. 8th IFAC World Congress, Kyoto, Japan, vol. II, pp. II-154- II-160, 1981.

5. Agathoklis, P., and M.H. Hamza, "Simulation studies of load-frequency control algorithms", in Proc. IASTED Symp. on Simulation, Modeling and Development, Cairo, Egypt, pp. 160-166, 1981.

6. Agathoklis, P., and M.H. Hamza, "A 2-D finite memory filter", in Proc. IASTED Symp. 071 Modeling, Identification and Control, Davos, Switzerland, pp. 286-290, 1982.

7. Agathoklis, P., and L.T. Bruton, "Practical BIBO-stability of n-dimensional discrete systems", in Proc. 1983 IEEE Int. Symp. on Circuits and Systems, Newport Beach, CA, vol. 2, pp. 923-926,1983.

8. Agathoklis, P., and M. H. Hamza, "A self-tuning regulator for a string of vehicles", in Proc. IASTED Int. Symp. on Applied Control and Identification, Copenhagen, Denmark, pp. 19.29 - 19.32, 1983.

9. Agathoklis, P., L.T. Bruton and N.R. Bartley, "The elimination of spikes in the magnitude frequency response of 2-D discrete filters by increasing the stability margin", in Proc. 1984 IEEE Int. Symp. on Circuits and Systems, Montreal, pp. 478-481, 1984.

10. Agathoklis, P., E.I. Jury and M. Mansour, "Asymptotic stability and the Lyapunov equation for two-dimensional discrete systems", in Proc. 9th IFAC World Congress, Budapest, Hungary, vol. VII, pp. 155-158, 1984.

11. Agathoklis, P., "Estimation of the stability margin of 2-D discrete systems using the 2-D Lyapunov equation", in Proc. 1985 IEEE Int. Symp. on CAS, Kyoto, Japan, vol. 3, pp. 1091-1092, 1985.

12. Agathoklis, P., E.I. Jury and M. Mansour, "On the various forms and methods of solution of the Lyapunov equation for 2-D discrete systems", in Proc. 24th IEEE Conf. on Decision and Control, Fort Lauderdale, FL, pp. 1573-1578, Dec. 11-13, 1985.

13. Lu, Wu-Sheng, A. Antoniou and P. Agathoklis, "Stability of 2-D digital filters under parameter variations", in Proc. 1986 IEEE Int. Symp. on CAS, San Jose, CA, pp. 2125, May 1986.

14. Agathoklis, P., "Some aspects of developing a modern engineering graphics course", in Proc. 5th Can. Conf. on Engineering Education, London, ON, pp. 698-705, May 1986.

15. Foda, S., and P. Agathoklis, "Stabilization of 2-D systems and characteristic polynomial assignment", in Proc. IEEE Pacific Rim Conf. on Communications, Computers and Signal Processing, Victoria, BC, pp. 432-435, June 1987.

16. Agathoklis, P., and S. Foda, "A recursive 2-dimensional fixed-memory filter", in Proc. IEEE MONTECH '87 Conf. on Communications, Montreal, PQ, pp. 75-78, 9-11 Nov. 1987.

17. Agathoklis, P., "On the very strict Hurwitz property of the 2-D characteristic polynomial of a matrix", in Proc. IEEE Int. Conf. on ASSP 88, New York, pp. 856-859, April 1988.

18. Agathoklis, P., E.I. Jury and M. Mansour, "The computation of positive definite solutions to the 2-D Lyapunov equation via a matrix Riccati equation", in Proc. IEEE Int. Symp. on ISCAS 88, Helsinki, Finland, pp. 349-352, June 1988.

19. Agathoklis, P., and M. Mansour, "Lower bounds for the stability margin of discrete systems based on the weighted performance criteria", in Proc. IEEE Int. Symp. on CAS, Helsinki, Finland, pp. 381-384, June 1988.

20. Agathoklis, P., and V. Sreeram, "System identification and model reduction of linear continuous systems from impulse response data", in Proc. 26th Annual Allerton Conference, Monticello, IL, pp. 199-208, Sept. 28-30, 1988.

21. Agathoklis, P., and A. Keddy, "DEDIP-An environment for image processing algorithm development", in Proc. ComCon 88, Advances in Communications and Control Systems, Baton Rouge, LA, pp. 517-526, Oct. 19-21, 1988.

22. Foda, S., and P. Agathoklis, "Absolute stability of two-dimensional nonlinear systems", in Proc. ComCon 88, Advances in Communications and Control Systems, Baton Rouge, LA, pp. 315-323, Oct. 19-21, 1988.

23. Agathoklis, P., and V. Sreeram, "Lower bounds for the stability margin of linear continuous systems from impulse response data", in Proc. Can. Conf. on Electrical and Computer Engineering, Vancouver, BC, pp. 155-158, Nov. 3-4, 1988.

24. Agathoklis, P., and X. Hao, "Recursive implementation of two-dimensional finite memory filters", in Proc. Can. Conf. on Electrical and Computer Engineering, Vancouver, BC, pp. 640-643, Nov. 3-4, 1988.

25. Foda, S., and P. Agathoklis, "Asymptotic stability of delay-differential systems with noncommensurate delays", in Proc. 27th IEEE Conf. on Decision and Control, Austin, TX, pp. 2470-2471, Dec. 7-9, 1988.

26. Williamson, D., P. Agathoklis and P. Museneci, "Discrete model for solving one-dimensional inversion on finite media", in Proc. 27th IEEE Conf. on Decision and Control, Austin, TX, pp. 1892-1896, Dec. 7-9, 1988.

27. Agathoklis, P., and Foda, S., "Lower Bounds for the Stability Margin of Delay Differential Systems", in Proc. IEEE Int. Symp. on Circuits and Systems, Portland, Oregon, pp. 549-552, May 9-11, 1989.

28. Agathoklis, P., Jury, E.I., and Mansour, M., "On the necessary and sufficient conditions for the very strict Hurwitz property of a 2-D characteristic polynomial", in Proc. IEEE Int. Symp. on Circuits and Systems, Portland, Oregon, pp. 1800-1803, May 9-11, 1989.

29. Sreeram, V., and Agathoklis, P., "Linear phase IIR filter design: A model reduction approach", in Proc. of IEEE Pacific Rim Conference, Victoria, B.C., pp. 185-188, June 1-2, 1989.

30. Agathoklis, P., and H. Xu, "A generalized algorithm for the recursive implementation of polynomial filters", in Proc. of IEEE Pacific Rim Conference, Victoria, B. C., pp. 181-184, June 1-2,.1989.

31. Foda, S., and P. Agathoklis, "Control of metal rolling process: A multidimensional system approach", in Proc. of American Control Conference, Pittsburgh, PA, June 21-23, 1989.

32. Sreeram, V., F. El-Guibaly and P. Agathoklis, "Systolic arrays for implementation of finite memory filters", in Proc. of Canadian Conf. on Electrical and Computer Engineering, Montreal, PQ, pp. 662-665, Sept. 17-21, 1989.

33. Sreeram, V., and P. Agathoklis, "Model reduction of linear discrete systems via weighted impulse response grammians", in Proc. of the 28th IEEE Conference on Decision and Control, Tampa, FL., pp. 2431-2436, Dec. 13-15, 1989.

Conference Publications: 1990 - Present

34. Sreeram, V., and P. Agathoklis, "Discrete system reduction via impulse-response grammians and its relation to Q-Markov covers", in Proc. of IEEE Int. Symp. on Circuits and Systems , New Orleans, LA, pp. 1215-1218, May 1-3, 1990.

35. Agathoklis, P., and V. Sreeram, "Model reduction of linear continuous systems using weighted impulse response grammians", in Proc. of the American Control Conference, San Diego, CA, pp. 2211-2216, May 23-25, 1990.

36. Foda, S., M.I. Elmasry and P. Agathoklis, "A systolic array implementation of recursive finite memory filters", in Proc. of the International Conference on Microelectronics, ICM' 90, Damaskus, Syria, pp. 2.21.1-2.21.4, Oct 13-17, 1990.

37. Agathoklis, P., "A new algebraic stability condition for two-dimensional continuous systems", in Proc. of the International Conference on Signal Processing, Beijing, China, Oct. 22-26, 1990.

38. Foda, S., and P. Agathoklis, "An algebraic test for asymptotic stability of delay differential systems with commensurate delays", in Proc. of the 1991 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, Victoria, B.C., pp. 406-409, May 9-10, 1991.

39. Foda, S., M.I. Elmasry and P. Agathoklis, "Systolic array implementation of 2-D finite memory filters", in Proc. of the 1991 IEEE Pacific Rim Conference on Communications Computers and Signal Processing, Victoria, B.C., pp. 700-703, May 9-10, 1991.

40. Keddy, W.A., and P. Agathoklis, "DEDIP: A user-friendly environment for digital image processing algorithm development", in Proc of the 1991 IEEE Pacific Rim Conference on Communications Computers and Signal Processing, Victoria, B.C., pp. 773-736, May 9-10, 1991.

41. Agathoklis, P., E.I. Jury and M. Mansour, "The importance of bounded real and positive real functions in the stability analysis of 2-D Systems", in Proc. of the 1991 IEEE International Symposium on Circuits and Systems, Singapore, pp. 124-127, June 11-14, 1991.

42. Shafai, B., A. Boulenouar and P. Agathoklis, "Realization of 2-D digital filters via feedback concept", in Proc. of 1991 IEEE International Symposium on Circuits and Systems, Singapore, pp. 460-463, June 11-14, 1991.

43. Agathoklis, P., E.I. Jury and M. Mansour, "Algebraic necessary and sufficient conditions for the stability of 2-D discrete systems", in Proc. of the 1991 IEEE International Symposium on Circuits and Systems, Singapore, pp. 610-613, June 11-14, 1991.

44. Sreeram, V., and P. Agathoklis, "System identification of linear continuous systems via the Gram matrix", in Proc. of the 1991 IEEE International Symposium on Circuits and Systems, Singapore, pp. 2268-2271, June 11-14, 1991.

45. Sreeram V., and P. Agathoklis, "The computation of the Gram matrix via impulse-response grammians", in Proc. of the American Control Conference, Boston, MA, pp. 727-728, June 26-28, 1991.

46. Agathoklis, P., and B. Shafai, "A sufficient condition for the stability of nonnegative 2-D interval discrete systems", in Proc. of the American Control Conference, Boston, MA, pp. 1707-1708, June 26-28, 1991.

47. Sreeram, V., and P. Agathoklis, "Linear systems identification and reduction using the gram matrix", in Proc. of the COMCON3, Victoria, B.C., Oct. 16-18, 1991.

48. Sreeram, V., P. Agathoklis and M. Mansour, "The generation of discrete-time q-Markov covers via inverse solution of the Lyapunov equation", in Proc. of the 3Oth IEEE Conference on Decision and Control, Brighton, U.K, pp. 1613-1618, Dec. 11-13, 1991.

49. Sreeram, V., and P. Agathoklis, "The computation of gram matrix via the solution of the Lyapunov equation", in Proc. of the 3Oth IEEE Conference on Decision and Control, Brighton, U.K, pp. 2092-2093, Dec. 11-13, 1991.

50. Agathoklis, P., and A. Kanellakis, "Complex domain transformations for 2-D systems in state-space description", in Proc. of the 1992 IEEE Int. Symp. on Circuits and Systems, San Diego, CA, pp. 710-713, May 10-13, 1992.

51. Sreeram, V., and P. Agathoklis, "On the theory of state-covariance assignment for linear SISO systems", in Proc. of the 1992 American Control Conference, Chicago, IL, pp. 785-790, June 24-26, 1992.

52. Agathoklis, P., A. Andekian K. Caputa and T. Curran, "Development of an adaptive controller to steer a hydrographic survey craft", in Proc. of the International Conference on Control and Robotics, Vancouver, B.C, pp. 36-39, Aug. 4-7, 1992.

53. Agathoklis, P., K. Caputa and A. Andekian, "A non-linear analog hardware model for the steering dynamics of a hydrographic survey craft", in Proc. of the International Conference on Control and Robotics, Vancouver, B.C, pp. 249-252, Aug. 4-7, 1992.

54. Sreeram, V., and P. Agathoklis, "On covariance control theory for linear continuous systems", in Proc. of the 30th IEEE Conference on Decision and Control, Tuscon, AZ, pp. 213-214, Dec. 16-18, 1992.

55. Tawfik, A., P. Agathoklis and F. El-Guibaly, " A tool for analyzing finite wordlength effects in fixed-point digital filter implementations", in IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, Victoria, B.C., pp. 116-119, May 19-21, 1993.

56. Li, J., and P. Agathoklis, "A case study of ISO surface generation in visualization", in IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, Victoria, B.C., pp. 622-625, May 19-21, 1993.

57. Sreeram, V., and P. Agathoklis, "On the discrete-time q-Markov covers with improved low-frequency behaviour", in Proc. of IFAC World Congress, Sydney, Australia, vol. 9, pp. 73-78, July 19-23, 1993.

58. Agathoklis, P., and A. Kanellakis, "Stability and roundoff noise analysis in 2-D digital filters", International Symposium on the Mathematical Theory of Networks and Systems, Regensburg, Germany, pp. 595-598, Aug. 2-6, 1993.

59. Tawfik, A., P. Agathoklis and F. El-Guibaly", New low roundoff noise implementation of second order digital filter sections with coefficients which are sum of power of two", Proc. of 36th Midwest Symposium on Circuits and Systems, pp. 272-275, Aug. 16-18, 1993.

60. Tawfik R., F. El-Guibaly and P. Agathoklis, "Efficient systolic implementation of fixed-point state-space digital filters", 1993 Canadian Conference on Electrical and Computer Engineering, Vancouver, B.C., pp. 39-42, Sep. 14-17, 1993.

61. Holford, S., and P. Agathoklis, "Designing linear phase IIR filters from FIR prototypes", 1993 Canadian Conference on Electrical and Computer Engineering, Vancouver, B.C.,
pp. 405-408, Sep. 14-17, 1993.

62. Li, J., P. Agathoklis, F. Peet, T. Sahota, and G. Jensen, "Three dimensional reconstruction of microscopic images", 1993 Canadian Conference on Electrical and Computer Engineering, Vancouver, B.C., pp. 1013-1016, Sep. 14-17, 1993.

63. Tawfik, A., F. El-Guibaly, E. Abdel-Raheem, and P. Agathoklis, "A novel systolic implementation of fixed-point state-space digital filter", in Proc. Int. Conf. Microelectronics, Dhahran, Saudia Arabia, pp. 177-180, Dec. 1993.

64. Agathoklis, P. and A. Kanellakis, "Low roundoff noise 2-D digital filters using residue feedback", in Proc. of the IEEE Southeastcom Ô94, Miami, FL, pp. 12-15, Apr. 10-13, 1994.

65. Tawfik, A., F. El-Guibaly, and P. Agathoklis, "VLSI array processors implementation of block-state digital filters", in Proc. of the IEEE International Symposium on Circuits and Systems, London, UK, pp. 4.2.67-4.2.70, May 30 - June 2, 1994.

66. Kanellakis, A. and P. Agathoklis, "A new digital filter structure generated by the Schwartz matrix form", in Proc. of the IEEE International Symposium on Circuits and Systems, London, UK, pp. 5.145-5.148, May 30 - June 2, 1994.

67. Netto, S. and P. Agathoklis, "A homotopy continuation mapping for the Steiglitz-McBride adaptive algorithm", in Proc. of the IEEE International Symposium on Circuits and Systems, London, UK, pp. 2.57-2.60, May 30 - June 2, 1994.

68. Kanellakis, A. and P. Agathoklis, "Estimation of the stability margin of 2-D state-space discrete systems", in Proc. of the IEEE International Symposium on Circuits and Systems, London, UK, pp. 2.561-2.564, May 30 - June 2, 1994.

69. Kanellakis, A. and P. Agathoklis, "Floating-point roundoff noise analysis of 2-D state-space digital filters", in Proc. of the IEEE International Symposium on Circuits and Systems, London, UK, pp. 2.601-2.604, May 30 - June 2, 1994.

70. Kanellakis, A. and P. Agathoklis, "New stability test for 2-dimensional systems" in Proc of 2nd IEEE Mediterranean Symposium on New Directions in Control & Automation, Chania, Greece, pp. 78-82, June 19-22, 1994.

71. Mansour, M. and P. Agathoklis, "Robust stability of 2-D low order discrete polynomials", Proc. of the First Asian Control Conference, Tokyo, Japan, July 27-30, 1994.

72. Netto, S.L. and P. Agathoklis, "A new composite adaptive IIR algorithm", in Proc. of the Ô94 Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, pp. 1506-1510, Oct. 31-Nov. 2, 1994.

73. Tawfik, A., P. Agathoklis, and F. El-Guibaly, "New realization and implementation of IIR digital filters using residue feedback", in Proc. of the Ô94 Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA pp. 167-171, Oct. 31- Nov. 2, 1994.

74. Tawfik, A., P. Agathoklis, and F. El-Guibaly, "New residue-feedback state-space IIR digital filter realizations", in Proc. of the IEEE International Symposium on Circuits and Systems, Seattle, WA, pp. 61-64, Apr. 29 - May 3, 1995.

75. Xiao, C., D. Hill, and P. Agathoklis, "On stability and the Lyapunov equation for n-dimensional digital systems", in Proc. of the IEEE International Symposium on Circuits and Systems, Seattle, WA, pp. 781-784, Apr. 29 - May 3, 1995.

76. Netto, S.L. and P. Agathoklis, "Composite algorithms for adaptive IIR filtering using Latice realizations", Proc. of the IEEE Pacific Rim Conference on Communications, Computer and Signal Processing, Victoria, B.C. pp. 189-192, May 17-19, 1995.

77. Li, Jianping, P. Agathoklis, F. Peet, G. Jensen, and T. Sahota, "Measurement and analysis of defused point spread functions and optical transfer functions of a microscope", IEEE Pacific Rim Conference on Communications, Computer and Signal Processing, Victoria, B.C. pp. 407-410, May 17-19, 1995.

78. Holford, S. and P. Agathoklis, "An adaptive fuzzy logic controller for steering a hydrographic survey craft to track a straight line, IEEE Pacific Rim Conference on Communications, Computer and Signal Processing, Victoria, B.C. pp. 623-626, May 17-19, 1995.

79. Singh, I., P. Agathoklis, and A. Antoniou, "Compression of Bathymetric data using wavelets", IEEE Pacific Rim Conference on Communications, Computer and Signal Processing, Victoria, B.C. pp.635-638, May 17-19, 1995.

80. Netto, S.L. and P. Agathoklis, "Extension of the equation error scheme for alternative realizations of adaptive IIR filters", Proceedings of the 28th Midwest Symposium on Circuits and Systems, Rio de Janeiro, Brazil, Aug. 13-16, 1995.

81. Netto, S.L., M. de Campos, A. Antoniou, and P. Agathoklis, "A stable RLC parameterization of the direct structure for adaptive IIR filters", Proceedings of the 28th Midwest Symposium on Circuits and Systems, Rio de Janeiro, Brazil, Aug. 13-16, 1995.

82. Chana, J. and P. Agathoklis, "Adaptive motion estimation for efficient video compression", Proceedings of the 29th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, Oct. 30-Nov. 1, 1995.

83. Xiao, C. and P. Agathoklis, "Design of 2-D linear phase IIR digital filters using 2-D impulse response grammians and implementation with low roundoff noise and no overlfow oscillations", accepted in Proc of the IEEE International Symposium on Circuits Systems, Atlanta, GA, May 12-15, 1996.

84. Agathoklis, P. and C. Xiao, "Low roundoff noise structures for 2-D digital filters", accepted in Proc of the IEEE International Symposium on Circuits Systems, Atlanta, GA, May 12-15, 1996.


Books, Contributions to Books

1. Agathoklis, P., E.I. Jury, and M. Mansour, "An algebraic test for internal stability of 2D discrete systems", in Realization and Modeling in System Theory, Proceedings of the International Symposium MTNS-89, Edited by M.A. Kaashoek, J.H. van Schuppen, A.C.M. Ran, Progress in Systems and Control Series, Birkhaeuser, Boston, Vol 1, pp. 303-310, 1990.

2. Agathoklis, P., "New results in the stability analysis of two-dimensional systems", in New Trends in Systems Theory, Edited by G. Conte, A.M. Perdon and B. Wyman, Progress in Systems and Control Series, Birkhaeuser, Boston, pp. 42-49, 1991.

3. Agathoklis, P., "The bounded real and positive real functions in the stability analysis of 2-D systems", in Fundamentals of Discrete-Time Systems, Edited by M. Jamshidi, M. Mansour, B.D.O. Anderson, N.K. Bose, pp. 173-180, 1993.

Completed to November 9, 1993


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