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25 views

Implementing High Pass Filter in Simulink

I am trying to implement the following block diagram using Simulink in Matlab. I am having trouble getting the high pass filters to work properly. To do the filtering, I am using the First and ...
2
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1answer
104 views

How does this Matlab code work?

I came across this uncommented Matlab code except for the header: ...
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0answers
18 views

How to modulate RF signal using LabView? [duplicate]

I am using Acousto-Optic Modulator (AOM) in my experiment to modulate laser light using controlled modulations in phase and intensity of RF signal being fed into the AOM. I want to know what program ...
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0answers
14 views

What is the maximum frequency of the signal that can be plotted with MATLAB via serial communication from Arduino? [migrated]

I want to plot the various signals sent to Arduino via Serial communication. What is the maximum frequency that can be showed without any signal distortion? I'm basically trying to make a ...
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0answers
28 views

Using a LabView interface, how do I control phase and intensity fluctuations in the RF electrical signal being fed to an AOM? [closed]

I am performing a Quantum Optics experiment where at one part I need to have a control over the fluctuations in the phase and intensity of the RF signal. This control then via an AOM provides me with ...
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0answers
41 views

Defibrillator simulation in Matlab/Simulink

Guys'm doing work at the university, to deliver on Friday the 17th and my problem is as follows. My aim is about defibrillator and I have to do the simulation and generate a pulse same as ...
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1answer
63 views

Parsing .s2p data through an automation script to plot graphs of the various s-parameters

Need to find a way to quickly decipher and plot s-parameters for tons of .s2p files in a short period of time. In specific, I need to plot the angle of the s-parameters versus frequency and then the ...
2
votes
1answer
82 views

Calculation of inductance of rectangle coil

I'm currently working on a project about inductance. I want to calculate the inductance of a rectangle-shaped coil with a pitch different from zero. I tried this by applying the law of Biot-Savart. If ...
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2answers
370 views

Can I run matlab on a microcontroller?? and if yes which one?

I am working on a complicated robotics project which involves MATLAB image processing algorithm and LEGO MINDSTORMS interface as well as an Arduino. The system works dependently in a sequence ...
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0answers
38 views

Analytical design of bandpass filter: MATLAB function documentation

I am trying to "design" a blackbox bandpass filter (butterworth or chebyshev) based on parameters such as \$f_{min}\$, \$f_{max}\$, bandwidth(BW)/Q-factor, and etc, using Visual Basic. However I am ...
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0answers
20 views

How is it possible to simulate the predefined IM motors in MATLAB/Simulink with a delta connection?

The default of stator connection of induction motors in Simulink is Y. I'd like to have Delta connection; however, this option has not been defined there.
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1answer
48 views

Digital Signal Analysis: Sinusoid and Filtering problem

I was wondering if someone could help me derive the answers for (ii) and (iii)? These are exam review problems, not homework, and I have no idea how to solve them. I have been trying to reference my ...
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0answers
116 views

What is RL, RLC Transfer Function graph in frequency domain?

I made function in Matlab to draw graph of absolute value and phase of H(f). But i don't know how the graph supposed to be in RL and RLC circuit. So i'd like you to check if graph can be correct. ...
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1answer
173 views

PID gains from the transfer function of a plant

I am trying to calculate gains ( Kp, Ki, Kd ) of a PID controller. I have to improve the response of a plant. I already have the Transfer function of the plant. I was wondering if matlab has some ...
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2answers
128 views

How do I transmit an FM signal from the VGA_R port on the DE2-115?

The best reference for my question would be this youtube video: https://www.youtube.com/watch?v=4VW017qPT6Y I'm trying to do exactly what they did with the following resources: Matlab 2013a with ...
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3answers
189 views

How to obtain sine wave back after fft?

I performed fft in matlab on y=sin(2*pi*t), with a time period of T=0.015. Now I want to get the original function back in the time domain, but I'm not sure how I can use ifft to do that. It gives me ...
2
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1answer
144 views

Interfacing Matlab with a NI real time target (cRIO 9073)

I currently have a control system implemented in Matlab that controls a vehicle. The tracking is performed using an overhead camera, and commands are sent to the vehicle via xbee. I have now added a ...
2
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0answers
194 views

I need to calculate the average power spectral density after passing packets through a butterworth filter using MATLAB

I am trying to generate 100 packets(row vectors each of size 8192) of random bits(1,-1),filter them using butterworth filter and then plot their average power spectral density. I have to do this ...
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346 views

Plotting reflection coefficient magnitude vs frequency in MATLAB

I am trying to plot a function (t) with respect to w in MATLAB. However, the output that I am seeing is showing 0 for all w within the defined range. This is not what I am supposed to be seeing. The ...
2
votes
1answer
106 views

How to interpret this bode diagram

I have this bode diagram. I am wondering how to interpret this. We start off with 90 degree phase lag e.g. a integrator. Then at approx 12 Hz we drop another 180 degrees indicating two integrators. ...
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1answer
67 views

Accurate frequency output through external speaker

I'm creating an application where I want to output a constant frequency through a speaker to test the frequency range of a microphone device I've developed. The problem is, my application measures ...
1
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1answer
107 views

Measurement system with MATLAB real-time windows target and NI PCI boards

I'm setting up an experiment which employs MATLAB real-time windows target and NI PCI-6229 and carrier SC-2345 board while I'm wondering about the hardware's compatibility It's given from here ...
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0answers
449 views

FFT Analysis using powergui (SimPowerSystem)

How to do FFT analysis using powergui tool available in matlab
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2answers
450 views

Why my full-wave bridge type diode rectifier circuit begins an analysis from 8. second on Matlab Simulink?

Hi, I am working on Matlab Simulink's work page to get full-wave and half-wave bridge-type-diode rectifiers as could be seen in the picture. But, according to my Scope2 screen when I double clicked ...
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1answer
866 views

Simulating a Flyback converter using Matlab / Simpowersystems, cannot get it to work, any tips?

I have created a flyback converter model using Simpowersystems in Simulink/Matlab. But it always gives me the wrong answer! I have simulated the same system using PLECS and Simscape/simulink and got ...
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0answers
34 views

How to use rank 1 covariance matrix for designing a kalman filter

I was trying to estimate the covariance matrix of the measurement noise of a (simulated) MIMO system. Turns out. In matlab cov(data) gives me a rank 1 matrix. I checked it. And I noticed that all ...
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1answer
113 views

Affine Non Autonomous State Space system

Normally We all know the state space model of the the form der(x) = F*x(t)+G*u(t) y = H*x(t)+J*u(t). However I came across a state space model which has the following form der(x) = F*x(t)+G*u(t) + ...
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0answers
38 views

Statistical signal modeling in Matlab

I want to build a detector of sorts. Say I have a bunch of signals and they all share some patterns, like some peaks in frequency or something more complicated that I can't bother to calculate by ...
3
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1answer
336 views

How can I high pass (DSP) filter a low frequency signal without introducing lag?

I need to high pass filter a signal, and my design just isn't cutting it. The part that's making it tricky is that I can't tolerate lag. I am sampling at 20Hz, the signal I care about is 1/12 to ...
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3answers
361 views

Describing step response in terms of poles and zeros of transfer function?

me and a friend are stuck describing something, we're both coming to terms with using matlab and we're trying to understand the design of a simple control system for controlling the steady-state error ...
4
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1answer
440 views

Kalman filter on linear acceleration for distance

In my application to calculate displacement from motion of accelerometer, I am using kalman filter to improve the displacement accuracy. Please note I am aware of ineffectiveness of acceleration for ...
0
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1answer
159 views

use ADSL modem like a analog to digital converter

How to input a signal to a ADSL modem (in phone line input) that such a simple sinusoidal signal and get same signal by computer ? ADSL modem connected by network cable and usb cable is The software ...
0
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1answer
157 views

Discrete Time Integrator (VS) Continuous Integrator

I am trying to Model control for a Micro-controller which (under Real Time Development) does not support Continuous time solver. So, instead i have to use Discrete Time Solver. How do i replace SECOND ...
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1answer
164 views

How to interpret a Current Value into a PWM signal percentage?

I have a maltab model, output of which (from an RL circuit) is a value for current. I want to interpret this value of current into a PWM signal with frequency of 1000Hz and duty cycle of 50%. I have ...
4
votes
1answer
2k views

MATLAB to VHDL conversion

How to convert any MATLAB code(.m file) to VHDL(.hdl code). As i have to use my image processing code in a FPGA kit. Any solution? Possible method: Using hdl coder in simulink, converting the ...
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0answers
145 views

Long Transmission line

Can we model a long transmission line in simulink matlab using PI sections? Or we have to simulate it using equations in matlab function?
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0answers
403 views

Not getting pure sine wave in simulnik matlab

I should be getting a pure sine wave. But it shows sine wave that is peak at top, and not smooth.So what should be the error. It shows following warning ...
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2answers
256 views

Matlab audio signal through audiometer

I am very new to audio processing and I am using matlab to produce a signal to be presented through an audiometer. The way I am doing it is as follows: 1) Set the dB amplitude level in my GUI to 0dB ...
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3answers
610 views

Audio Signal dB levels Matlab

I am trying to develop a GUI in MATLAB to allow the presentation of a tone. One of the input parameters is the dB the user wants. So the way I tried to do this is: y = factor * sin (2*pi*500*t); ...
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votes
1answer
175 views

Removing noise on Matlab

I chose a sine signal, let's say : Us=2*sin(2*pi*Fs*t) with Fs=800 ! Then I introduced a random noise to this signal. The aim of my program is to increase the SNR. The first method was to increase ...
2
votes
1answer
149 views

phase estimation from I and Q

let say I have a discrete sine signal. I build the I and Q channel according to sampling with a frequency 4*time the signal frequency. that means multiplying the signal with [1 1 -1 -1.....]. in ...
3
votes
2answers
346 views

Amplitude Modulation Concepts

I am currently learning about telecommunications but I have some concept issues. Firstly, does it matter if I am using cosine or sine in the equation? I understand that they are basically the same ...
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votes
1answer
707 views

How to control an LED light by the output of a matlab program?

In my project, I'm designing the software to control a door using fingerprints, so I have 2 possible outputs: 1-door open, 2-door not open. I need to change this output to an LED as an example (red ...
1
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1answer
399 views

Why is MATLAB used so much in industry when there's other software that can do a better job? [closed]

All the classes I'm taking require the projects to be done in MATLAB when there are times that C++ would be much better to use. One time the professor took three hours to find a transfer function when ...
2
votes
1answer
147 views

Voltage form at diode bridge

I want to find the output voltage of a circuit like this: and this is my Matlab code to solve it: ...
1
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0answers
158 views

Coupled LC Resonator in MATLAB

I am designing a dual-mode resonator with the following Circuit Model and Frequency Response! ADS Circuit Model: Frequency Response: I need help with the modelling of my circuit model in ...
2
votes
1answer
605 views

Simulating PID controller in Matlab

I am trying to explore PID control with a simulation. My problem is that the derivative term does not behave as expected in my simulation: No matter how large its coefficient it seems unable to ...
0
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1answer
61 views

Downsample vs custom latency register

Is there a difference between downsample block (eg. in matlab) versus a register with custom ...
0
votes
1answer
229 views

For loop does not compile in Matlab mcode using Xilinx block

I have a simple code in xilix type mblock in simulink: function q = test1( n) q = 0; for i = 1:n q = i; end; end If I run this code naively in matlab ...
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0answers
540 views

How do i calculate %THD using matlab

I have a .mat file that contains one period of a periodic signal. How do I use the exponential Fourier series and the definition of the total harmonic distortion to get total harmonic distortion of ...