Selected Recent Publications

C. D. Johnson, "A General Theory of "Multivariable" Servo-Tracking Control-Design For MIMO Linear Dynamical Systems; Framework for a Unified Theory of Modern Linear Control," Proc. 39th IEEE Southeastern Symposium on System Theory, Mercer University, Macon, GA, March 4-6, 2007. Avail. @ IEEE Xplore website.

Raghuram S. Godavarthi, C. D. Johnson, "The Cargo-Rattle Control Problem," Proc. 39th IEEE Southeastern Symposium on System Theory, Mercer University, Macon, GA, March 4-6, 2007. Avail. @ IEEE Xplore website.

Johnson, C. D., "A General Theory of Set-Point Regulation for MIMO Linear Dynamical Systems; The Case of State Set-Point Regulation," Proc. of the 38th Southeastern Symposium on System Theory, Tenn. Tech. Univ.; Cookeville, TN., March 5-7, 2006. Avail. @ IEEE Xplore website.

Johnson, C. D., "A General Theory of Set-Point Regulation for MIMO Linear Dynamical Systems; The Case of Output Set-Point Regulation [Pointing- Control] Part I: Precise Formulation as a Subspace Stabilization Problem," Proc. of the 38th Southeastern Symposium on System Theory, Tenn. Tech. Univ.; Cookeville, TN., March 5-7, 2006. Avail. @ IEEE Xplore website.

Johnson, C. D., "A General Theory of Set-Point Regulation For MIMO Linear Dynamical Systems; The Case of Output Set-Point Regulation ["Pointing Control"] Part II: Precise Solution as a Subspace-Stabilization Problem," Proc. of the 38th Southeastern Symposium on System Theory, Tenn. Tech. Univ.; Cookeville, TN., March 5-7, 2006. Avail. @ IEEE Xplore website.

C. D. Johnson, "Beyond Bellman's Principle of Optimality; The Principle of Real-Time Optimality," Invited Plenary Talk and Paper, Proceedings of the 37th IEEE Southeastern Symposium on System Theory, March, 2005; pp. 326-335; (peer reviewed by web-based review process); IEEE#05EX961.

C. D. Johnson, "Controller Design Algorithms for MIMO Linear Systems; Part 2: Discrete-Time Controllers for State-Stabilization with High Performance Disturbance-Immunity,"Proc. 37th IEEE Southeastern Symposium on System Theory, March, 2005; pp. 209-215; (peer reviewed by web-based review process); IEEE#05EX961.

C. D. Johnson, "Controller Design Algorithms for MIMO Linear Systems; Part 1: Continuous-Time Controllers for State-Stabilization with High Performance Disturbance-Immunity,"Proc. 37th IEEE Southeastern Symposium on System Theory, March, 2005; pp. 201-208; (peer reviewed by web-based review process); IEEE#05EX961

C. D. Johnson, "Auto-Endogenization of Input Dynamics in the Experimental Modeling of Dynamic Systems," Proceedings of the 2004 Huntsville Simulation Conference; Oct., 2004; Proceedings in printing process at The Society for Modeling and Simulation International, San Diego, CA.

Baumann, J., and C. D. Johnson, "Global-Stabilization of the Inverted-Pendulum; An Early Solution and Hardware Implementation," Proc. 2004 Southeastern Symposium on System Theory, Georgia Institute of Technology, Atlanta, GA, March 2004.

Mehmeti, B., and C. D. Johnson, "Analysis and Design of 'Discrete/Continuous'-Type Discrete-Time Controllers by Transfer-Function Methods; Some Examples," Proc. 2004 Southeastern Symposium on System Theory, Georgia Institute of Technology, Atlanta, GA, March 2004.

Johnson, C. D., "On a 'Science of Modeling' for Dynamic-Systems; Some Fundamental Ideas and Principles," Proc. 2004 Southeastern Symposium on System Theory, Georgia Institute of Technology, Atlanta, GA, March 2004.

Johnson, C. D., "An Exact Discrete-Time Transfer-Function Representation for the Analysis and Design of Discrete/Continuous Control Systems," Proc. 2004 Southeastern Symposium on System Theory, Georgia Institute of Technology, Atlanta, GA, March 2004.

Johnson, C. D., "The Need for a Science of Modeling," Proceedings of the Huntsville Simulation Conference, Huntsville Alabama; October 29-31, 2003; available from the Society For Modeling and Simulation, P. O. Box 17900, San Diego, CA.

C. D. Johnson, "Application of Discrete/Continuous Signal-Theory to Discrete-Time State-Estimation Problems for Linear Dynamical Systems with Intersample Variations of Inputs," 35th Southeastern Symposium on System Theory, University of W. Virginia, Morgantown, WV, March (2003).

C. D. Johnson, "On the Theory of Discrete-Time Signals of the Discrete/Continuous Type," Proceedings of the 35th Southeastern Symposium on System Theory, University of W. Virginia, March (2003).

C. D. Johnson, "Improved Discrete-Time, Disturbance-Accommodating Control Performance Using Discrete/Continuous Control Theory; Part I: Complete Disturbance-Cancellation (Rejection)," 35th Southeastern Symposium on System Theory, University of W. Virginia, Morgantown, WV, March (2003).

"Improved Discrete-Time Controller Performance Using the 'Control-Dimension Multiplier Effect' of Discrete/Continuous Control Theory," C. D. Johnson, Proc. of the 34th Southeastern Symposium on System Theory (SSST), UAH, Huntsville, Alabama, March 18-19 (2002).

"Helicopter Hover Control Using Linear Adaptive Control Techniques," C. Tournes and C. D. Johnson, presented at, AIAA Guidance and Control Conference, Monterey, CA, August 10-12 (2002).

"Augmented Proportional Navigation Guidance Using Subspace-Stabilization," C. Tournes and C. D. Johnson, presented at, AIAA Guidance and Control Conference, Monterey, CA, August 10-12 (2002).

"Complexity Mitigation by Active Control Applied to Linear Dynamic Systems," A. Bukley, C. D. Johnson, and M. J. Balas, Proc. IFAC Conference on Automatic Control in Aerospace, Bologna, Italy, pp. 161-166, 02-07 September (2001).

"Discrete-Time Estimation of Unknown Input Distributions in Linear Distributed Parameter Systems," M. Balas and C. D. Johnson, Proceedings 20th Southeastern Conference on Theoretical and Applied Mechanics (SECTAM), Callaway Gardens, Georgia, April (2000).

"New Results on the Inverse-System/Deconvolution Problem for Linear Dynamical Systems," C. D. Johnson, Journal of Circuits, Systems and Signal Processing, Vol. 19, No. 4, pp. 365-383 (2000).

"New Results in Subspace-Stabilization Control Theory," C. D. Johnson, (Invited Paper, Special Issue) Journal of Mathematical Problems in Engineering, Vol. 6, Nos. 2-3, pp. 99-124 (2000).

"Direct-Lift Design for Longitudinal Control of Hypersonic Aircraft Using Subspace Stabilization Control Techniques," C. Tournes and C. D. Johnson, Proc. 1999 AIAA Guidance, Navigation and Control Conference, Portland, OR, August 9-10 (1999).

"On the Monotone-Increasing Value of the Determinant of a Continued-Sum of Dyadic Products Arising in System-Identification," R. Bass and C. D. Johnson, Proc. 1999 Southeastern Symposium on System Theory, Auburn University, Auburn, AL, p. 284, March 21-23 (1999).

Selected Earlier Publications

Johnson, C. D., "On the Complete "Discretization" of an nth-Order Linear Differential Equation Model," Journal of Mathematical and Computer Modeling of Dynamical Systems, Vol. 5, No. 1, 1999, pp. 74-84.

Johnson, C. D., and B. Morgan, "Some Little-Known Results of Bob Bass in Mathematical System Theory," Proc. of the 1998 American Control Conf., Philadelphia, PA, June 1998, p. 424.

Bukley, A. P., and C. D. Johnson, "Complexity Mitigation by Active Control," Proc. 1998 AIAA Guidance, Navigation and Control Conference, paper #AIAA-98-4514, Boston, August 1998, p. 1956.

Johnson, C. D., "Identification of Unknown, Time-Varying Forces/Moments in Dynamics and Vibration Problems Using a New Approach to Deconvolution," Proc. 67th Shock and Vibration Symposium, Monterey, Calif., Nov. 1996, p. 141; also, Shock and Vibration Journal, Vol. 5, p. 181, 1998.

Johnson, C. D., "Sensor-Imperfection Compensation; A New Tool for Low-Cost Performance Enhancements in Guidance and Control Implementations," Proc. 1996 Congress of the International Federation of Automatic Control (IFAC), San Francisco, CA, 1996, Vol. P, p. 121.

Johnson, C. D., "Accommodation of Zero-Valued Characteristic Roots in the Solution Expression for Linear, Constant-Coefficient, Difference Equations," Journal of Mathematical Problems in Engineering, Vol. 2, p. 393, 1996.

Haleem, M. A., and C. D. Johnson, "Optimal Discrete-Continuous Control for the Linear-Quadratic Regulator Problem," Proc. 1996 Southeastern Symposium on System Theory (SSST), LSU, Baton Rouge, LA, p. 184, 1996.

Boykin, T. D., and C. D. Johnson, "A Generalized Solution Expression for Linear, Homogeneous, Constant-Coefficient Difference Equations," Journal of the Franklin Institute, Vol. 332 B, No. 2, pp. 227-235, 1995.

Zhu, J., and C. D. Johnson, "A Unified Eigenvalue Theory for Time-Varying Linear Circuits and Systems," (Invited Paper) Proc. IEEE 1990 International Symposium on Circuits and Systems, New Orleans, LA, May 1990.

Zhu, J., and C. D. Johnson, "Unified Canonical Forms for Matrices Over a Differential Ring," Journal of Linear Algebra and Its Applications, Vol. 147, pp. 201-248, 1991.