Question

Use MATLAB please find the passband and stopband of (digital an analouge) butterworth filter: number of...

Use MATLAB please

find the passband and stopband of (digital an analouge) butterworth filter:

number of order: 4

fc= 0.35

type=lowpass

fs=10Hz

Engineering   Electrical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

code:

fil = designfilt('lowpassiir', 'FilterOrder', 4, 'HalfPowerFrequency',0.5, 'SampleRate', 10, 'DesignMethod', 'butter');
fvtool(fil);

In this instead of 0.35 cuttoff frequency the half power frequency that is frequency at 3db level is used because of IIR filter approximation, if we use FIR then 6db level is used which is 0.35 but here we are using iir so according to matlab operation and methods it accepts the half power frequency for butter iir filter.


In this the red line box shown is passband and the bottam one is stop band.

Close view of passband

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
7. Optimal Lowpass Filter. Use the MATLAB command h = firpm(28, [0 0.30 0.36 1], [1...
7. Optimal Lowpass Filter. Use the MATLAB command h = firpm(28, [0 0.30 0.36 1], [1 1 0 0]) to design an optimal lowpass filter with length 29, passband from 0 to wp = 0.30pi and a stopband from ws = 0.36pi to pi with a desired response of 1 in the passband and zero in the stopband. (Assume equal error weighting in both the passband and stopband for the optimal filter in all exercises except Exercise 11.) Plot the...
MATLAB FIR filter design. The audio file, covering the frequency range of roughly 0 to 3000...
MATLAB FIR filter design. The audio file, covering the frequency range of roughly 0 to 3000 Hz, is very badly corrupted with high?level noise. Your problem is to design a digital filter that will sufficiently attenuate the noise so that the audio speech is intelligible. (sorry but chegg doesn't allow me to attach the wav file) Here is the design template: clear, clc % clear all variables %% Read in the noisy audio signal from the file 'CapnJ.wav' using audioread...
DON'T USE MATLAB to design a digital filter using the window method to meet the following...
DON'T USE MATLAB to design a digital filter using the window method to meet the following requirements: Stop band attenuation: ≥43 dB and <49 dB Pass band edge frequency: 3.2 kHz Stop band: 0 to 2.4 kHz Maximum pass band ripple: 0.0546 dB Phase response: Linear. Sampling frequency: 16 kHz Determine the first 6 filter coefficients. NB: Please don't use MATLAB to get the answers. do it manually!
Problem 1....... you can use Matlab The following Scilab code generates a 10-second “chirp” with discrete...
Problem 1....... you can use Matlab The following Scilab code generates a 10-second “chirp” with discrete frequencies ranging from 0 to 0.2 with a sampling frequency of 8 kHz. clear; Fs = 8000; Nbits = 16; tMax = 10; N = Fs*tMax+1; f = linspace(0.0,0.2,N); x = zeros(f); phi = 0; for n=0:N-1 x(n+1) = 0.8*sin(phi); phi = phi+2*%pi*f(n+1); end sound(x,Fs,Nbits); sleep(10000); //allows full sound to play Add code that calculates and plays y (n)=h(n)?x (n) where h(n) is the...
Problem 3 you can use Matlab and also i give u the Problem 1 code its...
Problem 3 you can use Matlab and also i give u the Problem 1 code its on Matlab Using the same initial code fragment as in Problem 1, add code that calculates and plays y (n)=h(n)?x (n) where h(n) is the impulse response of an IIR bandpass filter with band edge frequencies 750 Hz and 850 Hz and based on a 4th order Butterworth prototype. Name your program p3.sce this is the Problem 1 code and the solutin clear; clc;...
I have already written a MATLAB code to filter noise from a particular audio file however...
I have already written a MATLAB code to filter noise from a particular audio file however the resulted audio is not playing I use this code snippet: presult = audioplayer(fOut, fs); presult.play; the fout is fOut = filter(b, a, f); I do not know what i am doing wrong as the output playing is still the initial sound not thr noise filtered one. Please help deadline is due in hours. Thanks in advance
Problem 1 ...... you can use Matlan i got one so all what i need is...
Problem 1 ...... you can use Matlan i got one so all what i need is 2, 3 and 4 one of them or all of them .. thanks The following Scilab code generates a 10-second “chirp” with discrete frequencies ranging from 0 to 0.2 with a sampling frequency of 8 kHz. clear; Fs = 8000; Nbits = 16; tMax = 10; N = Fs*tMax+1; f = linspace(0.0,0.2,N); x = zeros(f); phi = 0; for n=0:N-1 x(n+1) = 0.8*sin(phi); phi...
Analog Signal Processing & Filter Design Please answser problem 1 below for parts a, b, c,...
Analog Signal Processing & Filter Design Please answser problem 1 below for parts a, b, c, and d. Please show all work written out, and matlab code for checking the problems with matlab. 1. Find the roots of the following polynomials and write them in factored form:             a. s2 + 4s + 4 (Use the quadratic equation and check with Matlab)             b. s2 + 2s + 10 (Use the quadratic equation and check with Matlab)             c. s3...
Analog Signal Processing & Filter Design Instructions: Please show how you arrived at the result. Use...
Analog Signal Processing & Filter Design Instructions: Please show how you arrived at the result. Use 3 significant figures and scientific or engineering notation. Use standard rounding, >0.5 in the next significant figure, round up & <0.5 round down. Provide the numerical solution to problems (unless the problem asks for a formula or equation). e.g. don't write Ö79, write 8.89, don't write 127/9, write 14.1 For the problem below: Please Use Matlab for plots. Label the Matlab plots, then capture...
PLEASE ANSWER QUESTION #2 Design an FIR band-pass filter with cutoff frequencies of π/ 4 and...
PLEASE ANSWER QUESTION #2 Design an FIR band-pass filter with cutoff frequencies of π/ 4 and π/ 6 . The filter’s impulse response should have 81 samples (i.e. N = 81). Use a Blackman filter window. (a) Plot the filter’s impulse response (b) Plot the magnitude of the filter’s frequency response, in dB. (i.e. 20 log(|H(e jω)|)) (c) Print out the MATLAB code used in the filter design 2. Use the filter designed in #1 to filter a random input...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT