selected publications academic article Fritsch, G. S., & Demars, k. J. (2023). Robust Nonlinear Filtering: A Non-Bayesian Approach. IEEE Transactions on Aerospace and Electronic Systems. PP(99), 1-17. Ward, K. C., & DeMars, K. J. (2022). Information-Based Particle Flow With Convergence Control. IEEE Transactions on Aerospace and Electronic Systems. 58(2), 1377-1390. Fritsch, G. S., & DeMars, K. J. (2021). Nonlinear Gaussian Mixture Filtering with Intrinsic Fault Resistance. Journal of Guidance, Control, and Dynamics. 44(12), 2172-2185. Brouk, J. D., & DeMars, K. J. (2021). Uncertainty Propagation for Inertial Navigation with Coning, Sculling, and Scrolling Corrections. Sensors. 21(24), 8457-8457. Coder, R., DeMars, K., Holzinger, M., & Scott, L. (2021). Introduction. Journal of the Astronautical Sciences. 68(2), 551-551. DeMars, K. J., & Ward, K. C. (2020). Modular framework for implementation and analysis of recursive filters with considered and neglected parameters. Navigation (Washington). 67(4), 843-863. Gualdoni, M. J., & DeMars, K. J. (2020). Impartial Sensor Tasking via Forecasted Information Content Quantification. Journal of Guidance, Control, and Dynamics. 43(11), 2031-2045. McCabe, J. S., & DeMars, K. J. (2020). Anonymous Feature-Based Terrain Relative Navigation. Journal of Guidance, Control, and Dynamics. 43(3), 410-421. Ward, K. C., Fritsch, G. S., Helmuth, J. C., DeMars, K. J., & McCabe, J. S. (2020). Design and Analysis of Descent-to-Landing Navigation Incorporating Terrain Effects. Journal of Spacecraft and Rockets. 57(2), 261-277. Schmid, C., & DeMars, K. J. (2020). Angular Correlation Using Rogers-Szegő-Chaos. MATHEMATICS. 8(2), 171-171. McCabe, J. S., & DeMars, K. J. (2019). Vision-based, terrain-aided navigation with decentralized fusion and finite set statistics. Navigation (Washington). 66(3), 537-557. McCabe, J. S., & DeMars, K. J. (2017). Considering Uncertain Parameters in Non-Gaussian Estimation for Single-Target and Multitarget Tracking. Journal of Guidance, Control, and Dynamics. 40(9), 2138-2150. Darling, J. E., & Demars, K. J. (2016). Uncertainty Propagation of Correlated Quaternion and Euclidean States Using the Gauss-Bingham Density. Journal of Advances in Information Fusion. 11(2), 186-205. LeGrand, K. A., DeMars, K. J., & Pernicka, H. J. (2015). Bearings-Only Initial Relative Orbit Determination. Journal of Guidance, Control, and Dynamics. 38(9), 1699-1713. DeMars, K. J., Hussein, I. I., Frueh, C., Jah, M. K., & Erwin, R. S. (2015). Multiple-Object Space Surveillance Tracking Using Finite-Set Statistics. Journal of Guidance, Control, and Dynamics. 38(9), 1741-1756. DeMars, K. J., & Bishop, R. H. (2015). Projecting High-Dimensional Parametric Uncertainties for Improved State Estimation Error Confidence. Journal of Guidance, Control, and Dynamics. 38(9), 1659-1672. DeMars, K. J., Cheng, Y., & Jah, M. K. (2014). Collision Probability with Gaussian Mixture Orbit Uncertainty. Journal of Guidance, Control, and Dynamics. 37(3), 979-984. Zanetti, R., & DeMars, K. J. (2013). Joseph Formulation of Unscented and Quadrature Filters with Application to Consider States. Journal of Guidance, Control, and Dynamics. 36(6), 1871-1874. DeMars, K. J., & Jah, M. K. (2013). Probabilistic Initial Orbit Determination Using Gaussian Mixture Models. Journal of Guidance, Control, and Dynamics. 36(5), 1324-1335. DeMars, K. J., Bishop, R. H., & Jah, M. K. (2013). Entropy-Based Approach for Uncertainty Propagation of Nonlinear Dynamical Systems. Journal of Guidance, Control, and Dynamics. 36(4), 1047-1057. Kelecy, T., Jah, M., & DeMars, K. (2012). Application of a Multiple Hypothesis Filter to near CEO high area-to-mass ratio space objects state estimation. Acta Astronautica. 81(2), 435-444. DeMars, K. J., Jah, M. K., & Schumacher, P. (2012). Initial Orbit Determination using Short-Arc Angle and Angle Rate Data. IEEE Transactions on Aerospace and Electronic Systems. 48(3), 2628-2637. Demars, K. J. (2012). Application of a Multiple Hypothesis Filter to near GEO high area-to-mass ratio space objects state estimation. Acta Astronautica. 81(2), 435-444. conference paper Fritsch, G. S., & DeMars, K. J. (2022). Intrinsic Fault Resistance for Nonlinear Filters with State-Dependent Probability of Detection. Journal of the Astronautical Sciences. 1821-1854. Brouk, J. D., & DeMars, K. J. (2022). Asynchronous Processing of Measurements with Uncertain Latencies in a Factorized, Consider-Neglect Navigation Filter Craft, K. J., & DeMars, K. J. (2022). Navigation Performance of Air Data Systems for Atmospheric Entry and Descent Helmuth, J. C., & DeMars, K. J. (2022). Optimal Slewing Maneuvers For Inertia Tensor Observability Frueh, C., Howell, K., Demars, K., & Bhadauria, S. (2021). Cislunar Space Situational Awareness Frueh, C., Demars, K., Bhadauria, S., & Gupta, M. (2021). Cislunar Space Traffic Management: Surveillance Through Earth-Moon Resonance Orbits Ward, K., & Demars, K. (2021). Gaussian Mixture Particle Flow Modeling Using Information Potential Helmuth, J. C., & Demars, K. (2021). Joint Probabilistic Data Association Filter Using Alternate Equinoctial Orbital Elements Fritsch, G., & Demars, K. (2021). Nonlinear Filtering with Intrinsic Fault Resistance Brouk, J., & Demars, K. (2021). Orbit Determination Using the Probability Hypothesis Density Filter and Alternate Equinoctial Orbital Elements Psiaki, M. L., Ward, K. C., & DeMars, K. J. (2020). A Bi-quintic Latitude/Longitude Spline and Lunar Surface Modeling for Spacecraft Navigation. Journal of the Astronautical Sciences. 657-703. Ward, K. C., & DeMars, K. J. (2020). Information-based Particle Flow for High Uncertainty Estimation Fritsch, G. S., & DeMars, K. J. (2020). Adaptive Confidence Filter Update for High Uncertainty Environments McCabe, J. S., & DeMars, K. J. (2020). Anonymous Feature Processing for Efficient Onboard Navigation DeMars, K. J., & Ward, K. C. (2020). Impact of Considering and Neglecting States on Descent-to-Landing Navigation Helmuth, J. C., & DeMars, K. J. (2020). Observability Study for Estimation of Rigid Body Attitude and Inertia Tensor Gualdoni, M. J., & DeMars, K. J. (2020). Optimization Strategies for Myopic and Forecasted Divergence-Based Sensor Tasking Objectives Brouk, J. D., & DeMars, K. J. (2020). Propagation of Errors Through Coning, Sculling, and Scrolling Correction Algorithms Schmid, C. L., & DeMars, K. J. (2019). ANGULAR CORRELATION USING ROGERS-SZEGO-CHAOS. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 1583-1601. Helmuth, J. C., Darling, J. E., & DeMars, K. J. (2019). RECURSIVE MULTIPLICATIVE ESTIMATION OF RIGID BODY ATTITUDE AND MOMENT OF INERTIA. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 4215-4233. Helmuth, J. C., Ward, K. C., & DeMars, K. J. (2019). Fusion of Multiple Terrain-Based Sensors for Descent-to-Landing Navigation McCabe, J. S., & DeMars, K. J. (2019). Terrain Relative Navigation With Anonymous Features McCabe, J. S., & DeMars, K. J. (2018). Fusion Methodologies for Orbit Determination with Distributed Sensor Networks. 1323-1330. LeGrand, K. A., & DeMars, K. J. (2018). The Data-Driven delta-Generalized Labeled Multi-Bernoulli Tracker for Automatic Birth Initialization. Proceedings of SPIE. 1064606. Gualdoni, M. J., & DeMars, K. J. (2018). AN IMPROVED REPRESENTATION OF MEASUREMENT INFORMATION CONTENT VIA THE DISTRIBUTION OF THE KULLBACK-LEIBLER DIVERGENCE. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 1889-1908. Demars, K. J. (2018). An optimization formulation of information theoretic sensor tasking McCabe, J. S., & DeMars, K. J. (2018). DECENTRALIZED FUSION WITH FINITE SET STATISTICS FOR LANDING NAVIGATION. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 2937-2961. Schmid, C. L., & DeMars, K. J. (2018). MINIMUM DIVERGENCE FILTERING USING A POLYNOMIAL CHAOS EXPANSION. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 1909-1928. Demars, K. J. (2018). Multiple set filtering using probability hypothesis densities Demars, K. J. (2018). Polynomial chaos confined to the unit circle Zanetti, R., & DeMars, K. J. (2018). A Comparison of Linear Attitude Estimators Kratzer, K. M., Helmuth, J. C., Ward, K. C., & DeMars, K. J. (2018). Impact of Sensor Model Fidelity and Scheduling on Navigation Performance McCabe, J. S., & DeMars, K. J. (2018). Robust, Terrain-Aided Landing Navigation Through Decentralized Fusion and Random Finite Sets Fritsch, G. S., & DeMars, K. J. (2018). Smoothing for Nonlinear Multi-target Filters with Gaussian Mixture Approximations Gualdoni, M. J., & DeMars, K. J. (2018). The Information Content of Data Arcs for Multi-Step Sensor Tasking Demars, K. J. (2017). Comparison of factorization-based filtering for landing navigation Demars, K. J. (2017). Information Theoretic Approaches to Space Object Collision DeMars, K. J. (2017). NONLINEAR GAUSSIAN MIXTURE SMOOTHING FOR ORBIT DETERMINATION. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 2117-2133. McCabe, J. S., Brown, A. J., DeMars, K. J., & Carson, J. M. (2017). Comparison of Factorization-based Filtering for Landing Navigation McCabe, J. S., & DeMars, K. J. (2016). Feature-Based Robotic Mapping with Generalized Labeled Multi-Bernoulli Filters for Planetary Landers Darling, J., Houtz, N., Frueh, C., & DeMars, K. J. (2016). Recursive Filtering of Star Tracker Data Darling, J., & DeMars, K. J. (2016). The Bingham-Gauss Mixture Filter for Pose Estimation Darling, J. E., & DeMars, K. J. (2016). ANALYSIS OF THE GAUSS-BINGHAM DISTRIBUTION FOR ATTITUDE UNCERTAINTY PROPAGATION. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 1407-1426. Demars, K. J. (2016). An inertial dual-state state estimator for precision planetary landing with hazard detection and avoidance Demars, K. J. (2016). Approach-phase precision landing with hazard relative navigation_ Terrestrial test campaign results of the Morpheus/ALHAT project McCabe, J. S., & DeMars, K. J. (2016). Considering Uncertain System Parameters in Multitarget Space Surveillance Tracking. 170-177. Darling, J. E., LeGrand, K. A., Galchenko, P., Pernicka, H. J., DeMars, K. J., Shirley, A. T., ... Mundahl, A. J. (2016). DEVELOPMENT AND FLIGHT OF A STEREOSCOPIC IMAGER FOR USE IN SPACECRAFT CLOSE PROXIMITY OPERATIONS. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 489-500. Demars, K. J. (2016). Feature-based robotic mapping with generalized labeled multi-bernoulli filters for planetary landers Darling, J. E., & DeMars, K. J. (2016). MINIMIZATION OF THE KULLBACK-LEIBLER DIVERGENCE FOR NONLINEAR ESTIMATION. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 213-232. Demars, K. J. (2016). Recursive filtering of star tracker data Haberberger, S. J., & DeMars, K. J. (2016). SPACECRAFT NAVIGATION USING A ROBUST MULTI-SENSOR FAULT DETECTION SCHEME. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 4653-4672. McCabe, J. S., & DeMars, K. J. (2016). THE GAUSSIAN MIXTURE CONSIDER KALMAN FILTER. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 1077-1096. Demars, K. J. (2016). The bingham-gauss mixture filter for pose estimation Darling, J. E., & DeMars, K. J. (2016). Uncertainty Propagation of Correlated Quaternion and Euclidean States Using Partially-Conditioned Gaussian Mixtures. 1805-1812. Bishop, R. H., Crain, T., DeMars, K. J., Hanak, C., Carson, J. M., Trawny, N., & Christian, J. A. (2016). An Inertial Dual-State State Estimator for Precision Planetary Landing with Hazard Detection and Avoidance Crain, T., Bishop, R. H., Carson, J. M., Trawny, N., Sullivan, J., Christian, J. A., ... Hanak, C. (2016). Approach-Phase Precision Landing with Hazard Relative Navigation: Terrestrial Test Campaign Results of the Morpheus/ALHAT Project DeMars, K. J., McCabe, J. S., & Darling, J. E. (2015). Efficient Multi-Sensor Data Fusion for Space Surveillance. Proceedings of the ... American Control Conference. American Control Conference. 5212-5217. LeGrand, K. A., & DeMars, K. J. (2015). Relative Multiple Space Object Tracking Using Intensity Filters. 1253-1261. LeGrand, K. A., & DeMars, K. J. (2014). Analysis of a Second-Order Relative Motion Lambert Solver DeMars, K. J., & McCabe, J. S. (2014). Multi-Sensor Data Fusion in Non-Gaussian Orbit Determination McCabe, J. S., & DeMars, K. J. (2014). Particle Filter Methods for Space Object Tracking Demars, K. J. (2014). Analysis of a second-order relative motion lambert solver Cheng, Y., Fruh, C., & DeMars, K. J. (2014). COMPARISONS OF PHD FILTER AND CPHD FILTER FOR SPACE OBJECT TRACKING. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 1043-1054. Demars, K. J. (2014). Initial relative orbit determination using multiple los measurements and Gaussian mixture models Demars, K. J. (2014). Linear and unscented covariance analysis for spacecraft close proximity relative navigation Demars, K. J. (2014). Multi-sensor data fusion in non-gaussian orbit determination DeMars, K. J., & Jah, M. K. (2014). PROBABILISTIC INITIAL ORBIT DETERMINATION USING RADAR RETURNS. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 35-54. Demars, K. J. (2014). Particle filter methods for space object tracking Demars, K. J. (2014). Solutions of multivariate polynomial systems using macaulay resultant expressions DeMars, K. J., & Zanetti, R. (2013). APPLICATIONS OF UNSCENTED AND QUADRATURE CONSIDER FILTERS USING A MODIFIED JOSEPH FORMULATION. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 1267-1279. Cheng, Y., DeMars, K. J., Fruh, C., & Jah, M. K. (2013). GAUSSIAN MIXTURE PHD FILTER FOR SPACE OBJECT TRACKING. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 649-668. Zanetti, R., DeMars, K. J., & Mortari, D. (2012). NOVEL MULTIPLICATIVE UNSCENTED KALMAN FILTER FOR ATTITUDE ESTIMATION. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 337-+. Hussein, I., DeMars, K., Fruh, C., Jah, M., & Erwin, R. (2012). An AEGIS-FISST Algorithm for Multiple Object Tracking in Space Situational Awareness Demars, K. J. (2012). An AEGIS-FISST integrated detection and tracking approach to space situational awareness DeMars, K. J., & Jah, M. K. (2012). EVALUATION OF THE INFORMATION CONTENT OF OBSERVATIONS WITH APPLICATION TO SENSOR MANAGEMENT FOR ORBIT DETERMINATION. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 3169-3188. DeMars, K. J., Bishop, R. H., & Jah, M. K. (2012). SPACE OBJECT TRACKING IN THE PRESENCE OF ATTITUDE-DEPENDENT SOLAR RADIATION PRESSURE EFFECTS. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 2801-2820. Demars, K. J. (2012). The Cauchy-Schwarz divergence for assessing situational information gain DeMars, K. J., Bishop, R. H., & Jah, M. K. (2011). A SPLITTING GAUSSIAN MIXTURE METHOD FOR THE PROPAGATION OF UNCERTAINTY IN ORBITAL MECHANICS. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 1419-+. Brady, T., Paschall, S., Crain, T., Demars, K., & Bishop, R. (2011). GENIE FLIGHT TEST RESULTS AND SYSTEM OVERVIEW. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 609-+. Zanetti, R., De Mars, K. J., & Bishop, R. H. (2010). Underweighting Nonlinear Measurements. Journal of Guidance, Control, and Dynamics. 1670-1675. Zanetti, R., DeMars, K. J., & Bishop, R. H. (2010). ON UNDERWEIGHTING LIDAR MEASUREMENTS. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 1085-1096. DeMars, K. J., Felker, P. S., & Bishop, R. H. (2010). REDUCED COMPLEXITY GRAVITY MODELING FOR RAPID DESIGN ENVIRONMENTS. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 2255-+. DeMars, K. J., Jah, M. K., & Schumacher, P. (2010). THE USE OF ANGLE AND ANGLE RATE DATA FOR DEEP-SPACE ORBIT DETERMINATION AND TRACK ASSOCIATION. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 815-+. DeMars, K. J., & Jah, M. (2009). PASSIVE MULTI-TARGET TRACKING WITH APPLICATION TO ORBIT DETERMINATION FOR GEOSYNCHRONOUS OBJECTS. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 89-+. Davis, J., Striepe, S., Maddock, R., Paschall, S., Bishop, R., Johnson, A., ... Sostaric, R. (2008). Advances in POST2 End-to-End Descent and Landing Simulation for the ALHAT Project DeMars, K. J., Bishop, R. H., Crain, T. P., & Condon, G. L. (2008). ENGINEERING ANALYSIS OF GUIDANCE AND NAVIGATION PERFORMANCE IN THE UNCERTAIN LUNAR ENVIRONMENT TO SUPPORT HUMAN EXPLORATION. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 263-+. DeMars, K. J., & Bishop, R. H. (2008). Navigation analysis to facilitate precision decent navigation for landing at the moon. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 1053-1068. DeMars, K. J., & Bishop, R. H. (2008). Precision descent navigation for landing at the moon. Spaceflight Mechanics 2005, Vol 120, Pts 1 and 2. 1027-1050.
teaching activities AERO211 Aero Engr Mechanics Instructor AERO422 Act Contr For Aero Veh Instructor AERO491 Hnr-research Instructor AERO491 Hnr-research Instructor AERO622 Spacecraft Dynamics Instructor AERO626 Est Of Dynamic Systems Instructor AERO691 Research Instructor
education and training Ph.D. in Aerospace Engineering, The University of Texas at Austin - (Austin, Texas, United States) 2010 M.S.E. in Aerospace Engineering, The University of Texas at Austin - (Austin, Texas, United States) 2007 B.S. in Aerospace Engineering, The University of Texas at Austin - (Austin, Texas, United States) 2004