PLEASE HELP ME ANSWER THE QUESTIONS TO THIS EXPERIMENT!! It's very important to answer and EXPLAIN...
PLEASE HELP ME ANSWER THE QUESTIONS TO THIS EXPERIMENT!!
It's very important to answer and EXPLAIN the question to part b) !!!
The DFT of a Rectangular Window & The Effects of Zero
Padding a Signal
a) Plot the 4-point magnitude DFT of the following
pulse w[n] = [1 1 1 1]= [w[0] w[1] w[2] w[3]] (Use the
FFT command in MATLAB.)
b) Conveniently zero pad the signal in order to plot the 8-point DFT, the 16-point DFT and the 128point DFT.
1_ Does zero padding increases the resolution (capacity to discriminate between closely spaced frequencies) in the DFT magnitude spectrum or it just does interpolation in frequency, thus providing a smoother spectrum? Discuss.
Homework Answers
![Matlab Signal: fft wn - fft(wn,4):subplot(2,2,1); plot(abs(fft wn): title(4 point fft); wn 8 -[wn zeros(1,4)]; fft wn- fft(](http://img.homeworklib.com/questions/bc6d83e0-0f59-11ec-b9a9-6d4d2699ec5f.png?x-oss-process=image/resize,w_560)
Add Answer to:
PLEASE HELP ME ANSWER THE QUESTIONS TO THIS
EXPERIMENT!!
It's very important to answer and EXPLAIN...
Can someone please help me with all these questions please? I desperately need it asap! Must be d...
Can someone please help me with all these
questions please? I desperately need it asap! Must be done with
MATLAB. Thumbs up will be guaranteed! Thank you so
much!!
A. Discrete Fourier Transform and zero padding For the signals x1[n] and x2[n] answer the following questions: x2 [n] = cos(2m30/100) + 0.5 cos(2nn40/100) 1) Compute and plot the length-N DFT magnitude of signals x1[n] and x2[n] with respect to frequency fr, where f and N is the number of samples....
Exercise 4. Computing and displaying the Fourier Transform of a signal Later in the semester it will become useful to d...
Exercise 4. Computing and displaying the Fourier Transform of a signal Later in the semester it will become useful to determine the frequency response of a signal or system by taking the Fourier Transform empirically (rather than computing it analytically). To do so we make use of the fft and fftshift commands. The fft command is an efficient implementation of the Discrete Fourier Transform (DFT) known as the Fast Fourier Transform (FFT). When the FFT is computed the samples are...
Hi This is linear systems and digital signal processing. Please answer this question with clean h...
Hi
This is linear systems and digital signal processing.
Please answer this question with clean handwriting.
Label the answer
Moving to another question will save this respose. Question 5 of 23 Question 5 10 points Save Answer A student warnts to visualize the spectrum of the following CT signal using MATLAB, xt) cos(2 p2*:t in seconds He computes a 1024-point FFT of 100 samples using a sampling frequency of 10 Hz. Which of the following recommendations would you give him?...
just ba and c please Date of Submission: (10 pts) The Fourier Transform of a non-periodic...
just ba and c please
Date of Submission: (10 pts) The Fourier Transform of a non-periodic rectangular pulse waveform fo having amplitude A and width t is given by V(f) AT (a) Consider a rectangular pulse waveform with amplitude A-20V and width τ 1 ms. Using (b) What is the value of spectrum at de? At what frequency does the first zero crossing occur? (c) Ifthe non-periodic waveform is multiplied by a sinusoid asM9cos2m×106, what will the Matlab, plot the...
can someone help me do this and maybe also the picture of the scope explain how you get it. thankyou! Frequency-sh...
can someone help me do this and maybe also the picture of the
scope explain how you get it. thankyou!
Frequency-shift keying (FSK) and Phase-shift keying (PSK) Two other modulation schemes are the phase-shift keying (PSK) and the frequency-shift keying (FSK). These are illustrated in Figure 8 b and c respectively. In phase-shift keying the carrier signal changes phase by a radians when the digital signal changes values. In frequency-shift keying a 0 is transmitted at a different carrier frequency...
Can you please help me answer Task 2.b? Please show all work. fs=44100; no_pts=8192; t=([0:no_pts-1]')/fs; y1=sin(2...
Can you please help me answer Task 2.b?
Please show all work.
fs=44100; no_pts=8192;
t=([0:no_pts-1]')/fs;
y1=sin(2*pi*1000*t);
figure;
plot(t,y1);
xlabel('t (second)')
ylabel('y(t)')
axis([0,.004,-1.2,1.2]) % constrain axis so you can actually see
the wave
sound(y1,fs); % play sound using windows driver.
%%
% Check the frequency domain signal. fr is the frequency vector and
f1 is the magnitude of F{y1}.
fr=([0:no_pts-1]')/no_pts*fs; %in Hz
fr=fr(1:no_pts/2); % single-sided spectrum
f1=abs(fft(y1)); % compute fft
f1=f1(1:no_pts/2)/fs;
%%
% F is the continuous time Fourier. (See derivation...
I need help with number 2 . Please answer in MATLAB thank you! 1. In the lab we analyzed filtering 60 Hz power-line noi...
I need help with number 2 . Please answer in MATLAB thank
you!
1. In the lab we analyzed filtering 60 Hz power-line noise from ECG signal using a digital (signal processing) filter. Now let's try to an analog (circuit) filter approach to remove the 60 Hz line-noise. Following is an active twin-T notch filter with transfer function: (1+m)((2joRC? +1 Z(a) 2R 2R Here m is the ratio of the two feedback 2C R resistance which determines the gain and...
Please help me answer the question using the circuit. Any method is acceptable. Thank You. **HERE...
Please help me answer the question using the circuit. Any method
is acceptable. Thank You.
**HERE IS A SAMPLE TABLE
f
w
|Vi|
|VA|
|VC|
|VD|
|VA|/|Vi|
|VC|/|VA|
|VD|/|VC|
φA
φC
φC-φA
φD
φD-φC
10
100
1000
10000
R2 w P+15V R1 A R2 B 2 с C2 HE D 3 Vi C1 R3 Vo -15V 3. Let R1 = 2.7 k12, R2 = 51k, R3 = 15 k12, C1 = .1 uF, and C2 = .1 uF. Assume that...
can you please help me answer theses questions ect Question 11 0 / 5 pts Light...
can you please help me answer theses questions
ect Question 11 0 / 5 pts Light of wavelength 495 nm is incident upon a single slit with width W = 4.3 x 10-4 m. m. The figure below shows the pattern observed on a screen positioned 270 cm from the slits. What is the distance, in cm. Please round your answer to two decimal places 0.008 Question 12 5/5 pts Classes Google Slides - cre... G Question 18 0/3 pts...
can someone help me answer these 5 questions and figire this graph out please? Acid-Base Titration...
can
someone help me answer these 5 questions and figire this graph out
please?
Acid-Base Titration of a Weak Acid with a Strong Base: Determination of K. Introduction: You will be titrating a solution of a weak acid with 0.100 M NaOH, while monitoring the reaction using a pH meter. Weak acids have characteristic acid-ionization constants, K. The purpose of this lab is to use the titration to determine the value of this constant for the weak acid called “benzoic...
Can someone please help me with all these
questions please? I desperately need it asap! Must be done with
MATLAB. Thumbs up will be guaranteed! Thank you so
much!!
A. Discrete Fourier Transform and zero padding For the signals x1[n] and x2[n] answer the following questions: x2 [n] = cos(2m30/100) + 0.5 cos(2nn40/100) 1) Compute and plot the length-N DFT magnitude of signals x1[n] and x2[n] with respect to frequency fr, where f and N is the number of samples....
Exercise 4. Computing and displaying the Fourier Transform of a signal Later in the semester it will become useful to determine the frequency response of a signal or system by taking the Fourier Transform empirically (rather than computing it analytically). To do so we make use of the fft and fftshift commands. The fft command is an efficient implementation of the Discrete Fourier Transform (DFT) known as the Fast Fourier Transform (FFT). When the FFT is computed the samples are...
Hi
This is linear systems and digital signal processing.
Please answer this question with clean handwriting.
Label the answer
Moving to another question will save this respose. Question 5 of 23 Question 5 10 points Save Answer A student warnts to visualize the spectrum of the following CT signal using MATLAB, xt) cos(2 p2*:t in seconds He computes a 1024-point FFT of 100 samples using a sampling frequency of 10 Hz. Which of the following recommendations would you give him?...
just ba and c please
Date of Submission: (10 pts) The Fourier Transform of a non-periodic rectangular pulse waveform fo having amplitude A and width t is given by V(f) AT (a) Consider a rectangular pulse waveform with amplitude A-20V and width τ 1 ms. Using (b) What is the value of spectrum at de? At what frequency does the first zero crossing occur? (c) Ifthe non-periodic waveform is multiplied by a sinusoid asM9cos2m×106, what will the Matlab, plot the...
can someone help me do this and maybe also the picture of the
scope explain how you get it. thankyou!
Frequency-shift keying (FSK) and Phase-shift keying (PSK) Two other modulation schemes are the phase-shift keying (PSK) and the frequency-shift keying (FSK). These are illustrated in Figure 8 b and c respectively. In phase-shift keying the carrier signal changes phase by a radians when the digital signal changes values. In frequency-shift keying a 0 is transmitted at a different carrier frequency...
Can you please help me answer Task 2.b?
Please show all work.
fs=44100; no_pts=8192;
t=([0:no_pts-1]')/fs;
y1=sin(2*pi*1000*t);
figure;
plot(t,y1);
xlabel('t (second)')
ylabel('y(t)')
axis([0,.004,-1.2,1.2]) % constrain axis so you can actually see
the wave
sound(y1,fs); % play sound using windows driver.
%%
% Check the frequency domain signal. fr is the frequency vector and
f1 is the magnitude of F{y1}.
fr=([0:no_pts-1]')/no_pts*fs; %in Hz
fr=fr(1:no_pts/2); % single-sided spectrum
f1=abs(fft(y1)); % compute fft
f1=f1(1:no_pts/2)/fs;
%%
% F is the continuous time Fourier. (See derivation...
I need help with number 2 . Please answer in MATLAB thank
you!
1. In the lab we analyzed filtering 60 Hz power-line noise from ECG signal using a digital (signal processing) filter. Now let's try to an analog (circuit) filter approach to remove the 60 Hz line-noise. Following is an active twin-T notch filter with transfer function: (1+m)((2joRC? +1 Z(a) 2R 2R Here m is the ratio of the two feedback 2C R resistance which determines the gain and...
Please help me answer the question using the circuit. Any method
is acceptable. Thank You.
**HERE IS A SAMPLE TABLE
f
w
|Vi|
|VA|
|VC|
|VD|
|VA|/|Vi|
|VC|/|VA|
|VD|/|VC|
φA
φC
φC-φA
φD
φD-φC
10
100
1000
10000
R2 w P+15V R1 A R2 B 2 с C2 HE D 3 Vi C1 R3 Vo -15V 3. Let R1 = 2.7 k12, R2 = 51k, R3 = 15 k12, C1 = .1 uF, and C2 = .1 uF. Assume that...
can you please help me answer theses questions
ect Question 11 0 / 5 pts Light of wavelength 495 nm is incident upon a single slit with width W = 4.3 x 10-4 m. m. The figure below shows the pattern observed on a screen positioned 270 cm from the slits. What is the distance, in cm. Please round your answer to two decimal places 0.008 Question 12 5/5 pts Classes Google Slides - cre... G Question 18 0/3 pts...
can
someone help me answer these 5 questions and figire this graph out
please?
Acid-Base Titration of a Weak Acid with a Strong Base: Determination of K. Introduction: You will be titrating a solution of a weak acid with 0.100 M NaOH, while monitoring the reaction using a pH meter. Weak acids have characteristic acid-ionization constants, K. The purpose of this lab is to use the titration to determine the value of this constant for the weak acid called “benzoic...
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