Akram Elhelbawy

9 Questions 8 Answers 0 Followers

Questions related from Akram Elhelbawy

Why it is better to avoid making loops (while .. for) in algorithms ?

why it is better to implement the same algorithm but without loops? Example: If I have an array of values, I want to substitute them in a specific equation. I can do that by 2 ways: 1) loop for...

09 September 2019 8,742 1 View

How to make a Simple Modeling of rectifier circuit ?

Well .. my question is too simple. I need to know how to model rectifier circuit in state space model [A B C D] rectifier circuit simply consists of: voltage source, MAYBE line inductane,...

08 August 2019 3,475 6 View

How to implement PI block inside a function in SIMULINK?

simply, I can put a PI block in simulink and specify gain and sampling time .. BUT this time I need to remove this block from simulink and put a function block, where inside, I can set Kp .. Ki.....

08 August 2019 7,438 5 View

How to apply "Wavelet" on a noisy signal in matlab ?

I want to apply Wavelet on noisy signal NOT image on matlab, but it always asks me to have 2D data ... My objective: I want to extend a specific frequencies from these noisy signal any ideas or...

07 July 2019 3,909 8 View

How to apply Model Predictive control (MPC) for a limited choice of input?

I have inverter and I need to use MPC to select an appropriate input "u" to be applied at specific time from a series of input u. how I can do it in code of MPC ? for example, u = 000 010...

07 July 2019 1,483 3 View

How to represent discrete state space on Simulink for electronic application??

my whole simulation which contains the inverter on Simulink is discrete time system with discrete block 2e-6 sec I made a state space model for the inverter system Xdot=Ax+Bu but I guess that I...

06 June 2019 6,144 5 View

State Space model for Active power filter?

I need an appropriate state space model of Active power filter which I can implement on Simulink, I found many of them but not well emphasizing .. so if there is a Discrete state space model which...

06 June 2019 2,076 2 View

How the GPS devices send messages on internet without internet connection ??

For Hikers/riders, they carry a GPS device which is connected to satellite and they can send messages to their family and friends .. If I want to build a system to host all kinds of these devices...

05 May 2019 3,052 5 View

How to generate FFT equation from a signal in simulink ??

Well .. I work with harmonic elimination in general .. I formed a system of 3 phase voltage source connected with bridge rectifier and load ... and of course as a result there are harmonics in...

04 April 2019 6,159 6 View