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1answer
21 views

Direct Torque Control of Induction Motor (DTC)

I was working on a project on how to design a classical Direct Torque Control drive DTC but there is a ceratin point that i can't understand. How can we calculate the Reference values of the torque ...
-1
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0answers
33 views

Matlab filter to vhdl

I want to filter a sine wave signal using Altera FPGA(cyclone IV). The sine wave is first converted by an ADC with Fs= 20Mhz, then stored into a register inside the FPGA. The frequency of my signal is ...
0
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0answers
16 views

Hysteresis controller in Simulink

With reference to THIS document's 7th figure, I'm trying to simulate a hysteresis controller with a specified dead band. I have all the components necessary but the comparator block seems to be a ...
0
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0answers
10 views

State space averaged model or switch averaged model?

While modelling the buck converter, which model best describes both CCM and DCM of operation? I'm trying to model in MATLAB for a CCM and DCM combined buck model. Can anyone help me with the best way ...
3
votes
4answers
85 views

How can a transfer function with only real poles show an overshoot in the step response?

I am trying to simulate the circuit below on SIMSCAPE, and its behavior is different in the simulation and in the real world. The simulation shows an overshoot, while the measurements I made do not - ...
0
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0answers
7 views

Converting binary array to an ASCII array [migrated]

I'm working in MatLAB, trying to convert an array of binary numbers to readable characters using an ASCII table. I created a script in MatLAB and the code is as follows. fileID = ...
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0answers
10 views

Optimal location and sizing determination of Distributed Generation [closed]

https://www.youtube.com/watch?v=-7HjoBMPC_s Optimal location and sizing determination of Distributed Generation. optimal location and optimal size of distributed generation. voltage stability and ...
0
votes
1answer
25 views

Independently toggling two series switches to multiply two pwm signals

Preface It is known that one can synthesize a signal into a train of boxcar pulses (pwm modulation), each with the same amplitude, if proper low pass filtration is applied to this pulse train before ...
-1
votes
1answer
73 views

Filtering a frequency and its harmonics (Matlab)

I want to remove all the frequency components from a .wav file except those within \$\pm 25\$ of \$523 \ Hz\$ as well as its harmonics. Attempt: I used a high pass filter first to suppress ...
0
votes
1answer
27 views

Gaussian function power spectrum (Matlab)

I am trying to plot the power spectrum (\$|FT(f)|^2\$) of a Gaussian function, and overlap it with the theoretically expected spectrum calculated from the Fourier transform pair: \$e^{-\alpha t^2} ...
0
votes
1answer
24 views

Generating FFT on data recived from 20Amp(ACS712) current sensor using arduino & processing IDE

Currently, for generating FFT on the data received from ACS712,i used the following method: first the data is sent to the Processing IDE from the sensor via arduino. the processing code converts the ...
0
votes
1answer
40 views

Gaussian Function Fourier Transform (Matlab)

I am trying to write my own Matlab code to sample a Gaussian function and calculate its DFT, and make a plot of the temporal Gaussian waveform and its Fourier transform. According to the FT pair: \$ ...
3
votes
2answers
34 views

Band-pass filter with a given impulse response (Matlab)

I am trying to pass a .wav sound waveform through a band pass filter whose impulse response is given by \$ h(t)=50u(t) \exp(-10t) \sin(2 \pi 440t), \$ I have imported the file into Matlab as ...
0
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0answers
18 views

Builing a Shunt active power filter in the synchronous reference frame

This schema representing a shunt active power filter in the synchronous reference frame, I'm focusing on the Area in the red box ! Schema I want to learn how to build my own shunt active power ...
0
votes
0answers
15 views

Serial Port not found by MATLAB to communicate with Arduino [migrated]

I'm just trying to know how to established serial communication between Arduino and MATLAB. From this tutorial I copied the code, but as for my PC use "Windows" I had to change my serial port name. ...
0
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0answers
13 views

matlab - simulink - entering impedance on a transmission line

Does anyone know if its possible to enter line impedance into a Simulink model. When given only a value of impedance? and NOT the constituent capacitive, inductive and resistive components. If any one ...
1
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0answers
33 views

how to sample and modulate a gps gold code

I am trying to simulate the data transmission of a GPS satellite. Telecommunications is not my field so I am struggling a bit with some concepts. I managed to generate the Gold code of the GPS ...
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votes
1answer
29 views

Simple Matlab Problem [closed]

I just started working with Matlab last week, so I'm very new. After searching for a while, I realized that I don't know how to fix a Matlab script that I'm working with. The problem is given below. ...
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2answers
23 views

How to do level shifting signal in simulink matlab?

i want to do level shifting signal from -5..5v to 0..10v in simulink.. anyone know how to do that in simulink? thanks
0
votes
1answer
23 views

How to implement a MIMO model with state space block in sumulink?

I want to implement an state space model with 4 inputs and 4 outputs at simulink. But the state space block has only one input and only one output. So what can I do here?
0
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0answers
18 views

display the output of a MATLAB simulation model for an induction machine in space phasor illustration

Hello, do any one know, if is it possible to display the output of a simulation model in MATLAB with the space phasor illustration? (in german: Raumzeigerdarstellung) as the picture shows: I have ...
0
votes
1answer
23 views

What is the difference in the input from inbuilt microphone and an external microphone amplifier?

I wrote a MATLAB script interfacing my laptop's inbuilt microphone to calculate the dbA levels of noise in my classroom. (un-calibrated, as of now) I want to now use this dbA calculation script on ...
0
votes
1answer
23 views

Transfer function just from data?

Is Matlab able to formulate a second order transfer function from just a dataset of 2 inputs and their 2 outputs or I still need to conduct a step response on my MIMO model to calculate the TF ...
0
votes
1answer
67 views

Interfacing Microphone amplifier with MATLAB A-weighting filter

I am working on a project that essentially would be used to measure the Noise produced by ceiling fans and regulate the speed if the noise interferes with speech levels. For the first phase of this ...
0
votes
1answer
61 views

MATLAB analog filter impulse response

MATLAB's impz is used to get the impulse response of a discrete time filter. freqz is used for the frequency response of a ...
0
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0answers
43 views

Unstable bode plot with positive gain margin and positive phase margin

I'm trying to design a compensator for a buck-boost converter (whose specifications I control). The model I used is: The transfer function of the buck-boost converter which I use is : (LIs - 1) / ...
0
votes
1answer
160 views

2nd order Sallen-Key Bandpass filter design in Matlab

I'm trying to design a Sallen-Key BPF within Matlab. With the documentation found on ti: http://www.ti.com/lit/ml/sloa088/sloa088.pdf, I studied and understood the basic. As for the design: The ...
0
votes
1answer
32 views

Feedback Control: Unexpected result for block diagram simplifications using matlab

I made some simple calculations regarding block diagram algebra. The problem is that I don't get the same result using matlab. Here is the system with it's corresponding blocks: $$H_1 = z+2$$ $$H_2 ...
0
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0answers
71 views

How to determine continuous-time delta-sigma loop filter coefficients?

I want to design a 3rd order CT delta-sigma CIFB modulator having determined a noise transfer function, but I can't grasp details how to do this. I am using the popular Delta-Sigma Toolbox by R. ...
0
votes
1answer
63 views

designing PID controller using Ziegler Nichols algorithm

I'm trying to use Ziegler Nichols algorithm to design PID controller for the following transfer function: G=w^2/(2*xws+w^2), w=1 , x=0.2. so since the step response for this function is a second ...
0
votes
1answer
236 views

Setting up a PID controller in Simulink for an Arduino example project

On the internet I found this "Arduino PID Example Lab" as an introduction to PID-contole. I set up the hardware and it is working like it is diskribed in the document. Since it is possible to connect ...
0
votes
2answers
59 views

How to perform a \$\dfrac{1}{s+a}\$ type integration in MATLAB?

Currently, I am integrating an ODE of the form \$\dot x = f(x,t)\$ in MATLAB using the function ode45 This is equivalent (in block diagram form) as passing \$\dot x\$ through an integrator ...
0
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1answer
57 views

Sampling frequency and FFT

I have tried this example code for sampling and FFT in MATLAB, but I have noticed that when the signal frequency becomes closer to nyquist frequency , some errors ( small frequency components near the ...
1
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1answer
49 views

Controls: Getting the feedback transfer function of a Plant and Controller

I'm designing a function in Python similar to MATLAB's 'feedback(T)' command. I know modules already exist, but it's something I want to do for myself for fun. However, I am running into issues. Let's ...
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0answers
35 views

Why does Simulink only allow you to linearize parts of your model that contain arrows?

I created a Boost converter but can't get its open loop transfer function because Simulink won't let me linearize. Here it allows me to linearize the input to the scope (I don't know what purpose ...
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0answers
90 views

How to study temperature influence on Li-Ion Batteries?

I would like to study and simulate the influence of the ambient temperature on a given Lithium Ion Cell. Behavior while charging or discharging for both internal Resistance and capacity. My ...
2
votes
1answer
220 views

How to calculate poles of overdamped, 2nd order system if only given experimental data?

I have been looking about how to calculate poles if I have experimental result of a step response in Matlab that looks like an overdamped system. So far I only found information (through internet or ...
0
votes
1answer
89 views

Step response of feedback system

We have a feedback system F(s) as in this figure: and this is the step response of G(s): and H=10. F(s): We got the root locus of the system F(s) as this: then we determined the gain ...
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2answers
115 views

Application to solve for Fourier series coefficients?

Does anyone know a way to solve for Fourier series coefficients using Matlab, WolframAlpha, random web app, etc.? For example if I wanted to solve for and plot the Fourier series coefficients for the ...
-1
votes
1answer
83 views

solve a problem with simulink

I have this problem which i want to solve using simulation. How i think it shall work in Simulink( i am not sure this is the way to do it) : -measure power and then decrease the voltage and increase R ...
0
votes
1answer
69 views

Matlab: Channel coding and modulation [closed]

This is a beginner level question on understanding modulation and channel coding. The confusion arises when I am trying to implement the concepts. Let's say I have the information bits as ...
0
votes
1answer
117 views

Matlab simscape component modification.

I am new to Matlab. I wanted to use Simscape resistor element and want to make it Temperature dependent. However i open the code of the component by view source code. I modify the code but couldn't ...
1
vote
2answers
106 views

Reduce the impact of gaussian noise on DTMF decoder

I have a Matlab code to decode digits from a given DTMF audio file (wav format). Considering the input signal to be in the form of x(n)+αv(n) where x(n) is the noise-free signal (i.e. the given DTMF ...
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votes
2answers
96 views

Simulink Capacitor doesnt load in simulation

I have a capacitor connected to a Voltage source in Simulink and it doesn't load with Voltage ....The voltage remains constant...3V What did I do wrong ? The Simulation says the voltage across ...
1
vote
1answer
63 views

Function to Simulate Realistic Waveform

I need to simulate a realistic signal voltage triangle waveform in Mathematica. I know that a real waveform won't have sharp corners, but I don't remember exactly what a real triangle wave looks ...
0
votes
1answer
48 views

Get distance covered by a wheel using a gyroscope placed on it

I have to calculate the distance covered by a wheelchiar using data gathered from a gyroscope that was placed on one of the driving wheels. I know the total length of the corridor we used for the ...
0
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0answers
86 views

To find the MISO(multiinput single output)transfer function for boost converter in matlan

I have modeled the boost converter as circuit modelling(matlab) and found the steady state and dynamic response. now i want to replace the boost converter by single block as transfer function. so its ...
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vote
2answers
47 views

How to find the transfer function of a frequency counter?

I am designing a mathematical model for my control systems project and in that there is this block which measures the frequency of the wave. For the practical application I fed this wave into a micro ...
0
votes
3answers
306 views

Transmitting data from MATLAB to FPGA

This is about design of a JPEG compression/decompression scheme on an Altera FPGA. It is possible to have camera or SD card for image input and TV or SD card for image output. However, these ...
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0answers
138 views

How to separate three phase signal in positive dq axis and negative dq axis in MATLAB/Simulink

I want to separate three-phase voltage into two groups positive and negative dq components (ie positive-direct voltage "Vd+", positive-quadrature voltage "Vq+", negative-direct Voltage "Vd-", and ...