Afshin Rahimi

6 Questions 31 Answers 0 Followers

Questions related from Afshin Rahimi

Is it possible to estimate the torque provided by actuators, given satellite attitude measurements (w & q)?

I was wondering if it is possible to estimate the torque provided by actuators, given satellite attitude measurements (w & q)? We only have access to measurements from satellite attitude (w...

19 February 2016 279 4 View

What are the state-of-the-art fault identification methods?

I am working on fault identification/classification and was wondering if anyone knows a good literature review reference that lists available methods and provides a comparison study on these methods?

24 January 2016 971 6 View

How can I introduce faults to Reaction Wheel unit?

I have a Reaction Wheel hardware unit. I have been working on the estimation of internal parameters using RW outputs using Matlab and Simulink. Now I would like to be able to test it with...

20 October 2015 6,873 1 View

Does anyone have advice on fault identification using System Output?

I am trying to do fault classification/identification and I need to know whether it is possible to do the classification using system output? In the first step, system outputs are used for...

14 October 2015 5,886 7 View

What is the easiest way to determine if a parameter is identifiable in a nonlinear model?

Imagine we have a nonlinear model of the following form: Xdot = F(x,p,u) Y= h(x,p,u) where x is the system states, p are system parameters, u is the system input, Y is the system output and f(.)...

30 March 2015 4,778 13 View

Does anyone have experience with dual estimation problems?

I am facing an issue in the dual estimation problem using an unscented Kalman filter (UKF) for estimating both states and parameters of a reaction wheel (RW). states are good since I have full...

08 August 2014 8,790 15 View