Here is a recent book chapter I wrote that is available for download free of charge. http://mts.intechopen.com/articles/show/title/analysis-and-control-of-nonlinear-attitude-motion-of-gravity-gradient-stabilized-spacecraft-via-lyapRead more "Book Chapter-Analysis and Control of Nonlinear Attitude Motion of Gravity-Gradient Stabilized Spacecraft via Lyapunov-Floquet Transformation and Normal Forms"
In my latest article, we present a powerful direct approach to simplify complexly structured nonlinear systems with external periodic excitation via normal forms. This approach is liberated from special treatment of nonlinear systems such as ‘book-keeping’ parameters, detuning parameters etc. It does not mandate the system to be minimally excited and the system may possess […]Read more "Simplifying Nonlinear Systems With External Periodic Excitation"
In my latest journal article I have a mouthwatering treat in; gravity gradient attitude stabilization, periodic nonlinear spacecraft attitude dynamics, Chebyshev polynomials, Hopf bifurcation, sliding mode control, Lyapunov-Floquet transformation, Normal Forms, system state augmentation etc. The article titled ” Control of Nonlinear Spacecraft Attitude Motion via State Augmentation, Lyapunov-Floquet Transformation and Normal Forms ” is […]Read more "Control of nonlinear spacecraft attitude dynamics"
The ASU-led NASA Psyche Mission is offering a free self-paced online course that outlines the process of NASA space mission development from idea to flight. The series of free online courses are called the NASA Psyche Mission Innovation Toolkit. The course provides a valuable insight into space mission development campaign. I highly recommend this course […]Read more "Free Online Course on Space Exploration!"
This is a research article I co-authored as part of the Harvard University Kennedy School of Government Research Working Paper Series . It focuses on the theme of Space Technology for Sustainable Development and the unique role played by small satellites. https://www.hks.harvard.edu/publications/space-technology-and-africas-development-strategic-role-small-satellitesRead more "Space Technology and Africa’s Development: The Strategic Role of Small Satellites."
In this phase, Kenya will begin to transcend to the Operator level from a User level of the space technology capability hierarchy pyramid. This progression will be realized through further expansion of the resources and capacities formerly initiated in the preceding phases. Expanding capabilities will further be augmented by the introduction of completely new competences. […]Read more "Kenya Space Sector Formulation—Phase 4"
I am delighted that after a brief hiatus, the regular posts and discussions on establishing a space space in Kenya have now resumed. Let us keep the conversation going. The next post will be on Kenya Space Sector Formulation Phase 4.Read more "Discussion Resumes!"
It is in this phase that the physical establishment of the proposed space sector’s infrastructure and tangible capacity commences. A concurrent tripartite approach targeting i) human, ii) organizational and, iii) societal capacity development is required to ensure a comprehensive and efficacious inception of the Kenyan space sector. Similarly, identification and strategic engagement of potential collaboration […]Read more "Kenya Space Sector Formulation—Phase 3"
It is in this phase of the road-map that the Kenya space sector organizational framework is defined. This organizational framework should not only present the constituent stakeholders; but, also elucidate the interaction dynamics between the stakeholders. Consequently, we propose the Kenya space sector organizational chart shown in the schematic below. This initial sector organizational framework […]Read more "Kenya Space Sector Formulation—Phase 2"
In our quest to illustrate how to establish a space sector for sustainable development in Kenya, we have so far addressed several pertinent fundamental themes. They include; What is space technology? Why does Kenya need space-based technology? The global space technology legacy and the prevailing global space technology trends. Under what framework should Kenya integrate […]Read more "So Far!"