Question

In: Electrical Engineering

How to design FIR lowpass filter using matlab. Note : Do not write matlab code. Only...

How to design FIR lowpass filter using matlab.

Note : Do not write matlab code. Only explain the steps of designing filter

Solutions

Expert Solution

1.)you can use the designfilt function and specify the input parameters for example), 'StopbandFrequency', 0.35, 'PassbandRipple', 0.25, StopbandAttenuation', 50, 'DesignMethod',"kaiserwin")

And you can use the fvtool to visualise the filter response.

lpFilt = designfilt('lowpassfir','PassbandFrequency',0.2, ...
'StopbandFrequency',0.35,'PassbandRipple',0.25, ...
'StopbandAttenuation',50,'DesignMethod','kaiserwin');
fvtool(lpFilt)

type =low pass filter--lowpassfir
% StopbandAttenuation-- =50dB
%window type =kaiser
% pass band frequency =0.2*pi
% stop band frequency =0.35*pi
%pass band ripple =0.25db

2.) another way is we can start by specifying the number of filter taps N = 31

specify the cut off frequency  

specify the sampling rate

specify the number of poles or transfer function

determine the filter order

use the fir2 function to define the filter

use the freqz to find the filter coefficients

Manojponduru answered 1 year ago
Next > < Previous

Related Solutions

Matlab Design a FIR filter directly using fir1 function in matlab with parameter M = 50....
Matlab Design a FIR filter directly using fir1 function in matlab with parameter M = 50. Design FIR filters with different M = 5, 10, 50, 100, 500 and plot their frequency responses H(e j?) on the same figure.
Design a linear phase, minimum-length, band-pass FIR digital filter in MATLAB to meet the specifications listed...
Design a linear phase, minimum-length, band-pass FIR digital filter in MATLAB to meet the specifications listed below. Use Rectangular Windowing (MATLAB function: fir1) pass-band frequencies: f_p1 = 0.35, f_p2 = 0.65 stop-band frequencies: f_s1 = 0.10, f_s2 = 0.80 pass-band tolerance: d_p <= 0.1 stop-band tolerance: d_s <= 0.1 I am attempting to learn more about MATLAB and I am having trouble with specific filter design and it would be helpful to have an example.
The following code must be written using matlab and must be using a for-loop. NOTE! Write...
The following code must be written using matlab and must be using a for-loop. NOTE! Write a computer program that assigns random integers for each entry and generates a row vector. Different random integers should be drawn from different intervals for position 1, position 2, position3 and position 4 of the array. After these first 4 positions are drawn. The whole thing should start over where position5 drawn from same interval as positions 1, position6 drawn from same interval as...
The following code must be written using matlab and must be using a for-loop. NOTE! Write...
The following code must be written using matlab and must be using a for-loop. NOTE! Write a computer program that assigns random integers for each entry and generates a row vector. Different random integers should be drawn from different intervals in chunks of 4 , that is chunk1-chunk2-chunk3-chunk4 The parameters for specifying the lintervals by which the random numbers should be drawn should be able to change and be hardcoded in the script, however, be hardcoded in the script.
Design a LP FIR filter to meet the following specifications using the window method. Use a...
Design a LP FIR filter to meet the following specifications using the window method. Use a Blackman window. Fs = 25 kHz Fc = 5.0 kHz (3 dB down) Attenuation = 80 dB at 7 kHz Give all the relevant plots (impulse, frequency responses) and the performance of the final filter. Compare this filter to one designed using the optimal method .
Design a LP FIR filter to meet the following specifications using the window method. Use a...
Design a LP FIR filter to meet the following specifications using the window method. Use a Blackman window. Fs = 25 kHz Fc = 5.0 kHz (3 dB down) Attenuation = 80 dB at 7 kHz Give all the relevant plots (impulse, frequency responses) and the performance of the final filter. Compare this filter to one designed using the optimal method. (Please use MATLAB to give all the answers)
What I am trying to do is to design a Butterworth Bandpass filter using Matlab, High...
What I am trying to do is to design a Butterworth Bandpass filter using Matlab, High frequency must equal to 16 Hz and lower frequency must be 10Hz (passBand). and the input signal must be a white noise signal. here is my code : mu=0; sigma=2; X= sigma*randn(500,1)+mu; %Generating White Noise signal Fs=500;%Sampling Frequency Fh= 16; Fl=10; order=6; [b,a]=butter(order,[Fh Fl]/(Fs/2),'bandpass');%Butterworth BandPass filter XX=filtfilt(b,a,X);%filter the signal both forward and backword in time Actually, I am not sure about Fs value that...
Write a report 3-4 pages in DSP Digital FIR filter design Analysis {Low Pass Filter(LPF) ,High...
Write a report 3-4 pages in DSP Digital FIR filter design Analysis {Low Pass Filter(LPF) ,High Pass Filter(HPF), Band Pass Filter (BPF), Band Stop Filter (BSF)} Design 1-way of design and system pools evaluation
Code in Matlab for a low pass filter and a high pass filter. Each filter must...
Code in Matlab for a low pass filter and a high pass filter. Each filter must show the frequency response (magnitude and phase) in graphs properly labelled.
Design a matlab code that: 1-play sound 2- add noise to the sound 3- filter the...
Design a matlab code that: 1-play sound 2- add noise to the sound 3- filter the noised signal using fir or iir filter Note: FIR: Finite impulse response filter IIR: Infinite impulse response filter
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT