Yet another crazy video!
Recent Forum Posts
in discussion Controls Help / Advanced Controls Help » Comparison between various control filters
Hey everyone!
So, my knowledge on control filters is limited. I understand the concept of the filters and generally how they work, but I don't know all of the details.
I have discovered that there are several filters out there beyond the Kalman filter, such as the Benes filter, the Daum filter, particle filters, the extended Kalman filter, etc……
Can someone please explain to me some of the main differences between these filters? And why does the Kalman filter still remain the most popular filter when so many additional filters have been designed to overcome the shortfalls of the Kalman filter?
Check this out!!! I wonder if there is a way to do this on Earth?
in discussion References / Classical Control Books/Papers » Lead and Lag Compensators
Here is another good journal article which discusses the benefits of lead and lag compensators with complex poles and zeros.
Enjoy!
in discussion References / MPC Books/Papers » Model Predictive Control Journal Paper
Here is a journal paper that gives a decent overview of MPC.
Tutorial Overview of Model Predictive Control (by James B. Rawlings)
in discussion References / Classical Control Books/Papers » Non-Minimum Phase Zeros
Hey everyone!
So, I found this really good journal paper on Non-Minimum Phase Zeros and how they affect a dynamical system. It even goes into the dynamic response of systems with multiple RHP zeros and provides helpful examples.
Non-Minimum Phase Zeros (by Jesse B. Hoagg and Dennis S. Bernstein)
Enjoy!
in discussion General / General Discussion » How to linearize these equations?
Hey Perry,
I think you need to linearize about a set of i & x. Thus you are not really finding a "line" that represents the point, but you are instead finding a "plane" that represents the combination of both variables.
Here is a lecture from an Arkansas Tech University Calculus III class that talks about multivariable linearization:
Local Linearity of Multivariable Functions
I hope this helps answer your question.
in discussion General / General Discussion » How to linearize these equations?
Linearize following system of equations and put them in linear state space format
(1)\begin{align} m\ddot{x}+\frac{K{{i}^{2}}}{x}=mg \end{align}
(2)
\begin{align} L\frac{di}{dt}+iR=V \end{align}
I am still struggling with it, the thing is if I try to linearize $\frac{1}{x}$, even then the nonlinear part from coupling electrical circuit remains $K{{i}^{2}}$. Any insights? Ideas?
in discussion General / General Discussion » Topics to be covered in Teaching Modules
a.Mathematical Foundations
- Mathematical Foundations
- Ordinary Differential Equations
- Laplace Transforms
- Modeling
- Modeling of dynamic systems
- Mechanical
- Electrical
- Electromechanical
- Feedback control fundamentals
- Block diagrams, reduction
- Stability criterion
- Type 0 , 1 & 2 systems and responses
- Control
- Time domain control – Root locus , control design
- Frequency domain control- Bode plots- control design
- Modeling of dynamic systems
Suggestions and Comments welcome. We need to get moving on this.
Here is another MPC book that I have heard is good. It also includes MATLAB examples which can be enormously beneficial.
This is a very common MPC book by Jan Maciejowsk. I haven't finished reading it yet, but I've been told that it is solid.
Notice: If you this page through the link on the forum, then click on the link above titled "MPC Books". It will redirect you to the same discussion page, but will include Amazon links for the books mentioned in these threads.
Here is a very common MPC book by Jan Maciejowsk. I haven't finished reading it yet, but I've been told that it is solid:
in discussion Published Work / Conference Papers » John Adcox's Conference Papers
J. Adcox, B. Ayalew, T. Rhyne, S. Cron and M. Knauff
"Interaction of Anti-lock Braking Systems with Tire Torsional Dynamics",
30th Annual Meeting and Conference on Tire Science and Technology, September 13-14, 2011, Akron, OH.
So, here is a pretty awesome video of an autonomous quadrotor
in discussion General / General Discussion » First Impressions of the site?
Hey guys!
So what are your first impressions of the site? Do you think the layout is ok? If not, then let me know what you think can be changed and I will do my best to adjust things.
Just as a reference, here are some wikidot pages that I either helped work on or used from my undergraduate coursework.
Advanced Robotics
IGVC Autonomous Robot Club
Dynamics of Machinery
As you can see there is a wide range of possibilities for how we can have this page set up and what we can include. Just give me your feedback and I'll see if we can make it happen.
John
