Question

DFT Question: 4. If fs = 250 and x = 2δ [n −1]−3δ [n −3]+ 5δ...

DFT Question:

4. If fs = 250 and x = 2δ [n −1]−3δ [n −3]+ 5δ [n − 4]+ 5δ [n −5],
a. what does frequency of each k (which is frequency index)?
b. How many total numbers of bins (each k is called bin) do you need to have if you want to
represent the frequency of 15 Hz for each bin?
c. If you append 10 zeros in the back of this x signal, what frequency does each k
represent?

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

Homework Answers

Answer #1

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
Given the real signal: x [n] = [1, -2,0,1], indicate the correct alternative: a) The DFT...
Given the real signal: x [n] = [1, -2,0,1], indicate the correct alternative: a) The DFT of the signal with 6 points is [0, -1 + 1.7321j, 3 + 1.7321j, 2.3-1.7321j, -1-1.7321j] b) The DFT of the signal with 5 points is: [0,0,0, j, -j] c) The DFT of the signal with 7 points does not allow the original signal to be recovered. d) The DFT of the signal with 4 points is: x [n] = [-2, -1 + 1j,...
Consider the signal x(t) = 3 cos 2π(30)t + 4 . (a) Plot the spectrum of...
Consider the signal x(t) = 3 cos 2π(30)t + 4 . (a) Plot the spectrum of the signal x(t). Show the spectrum as a function of f in Hz. ?π? For the remainder of this problem, assume that the signal x(t) is sampled to produce the discrete-time signal x[n] at a rate of fs = 50 Hz. b Sketch the spectrum for the sampled signal x[n]. The spectrum should be a function of the normalized frequency variable ωˆ over the...
4.2 Given a sequence x(n) for 0 ≤ n ≤ 3, where x(0) = 4, x(1)...
4.2 Given a sequence x(n) for 0 ≤ n ≤ 3, where x(0) = 4, x(1) = 3, x(2) = 2, and x(3) = 1, evaluate its DFT X(k). 4.5 Given the DFT sequence X(k) for 0 ≤ k ≤ 3 obtained in Problem 4.2, evaluate its inverse DFT x(n).
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;...
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...
1. Given an n-element array A, Algorithm X executes an O(n)-time computation for each even number...
1. Given an n-element array A, Algorithm X executes an O(n)-time computation for each even number in A and an O(log n)-time computation for each odd number in A. What is the best-case running time of Algorithm X? What is the worst-case running time of Algorithm X? 2. Given an array, A, of n integers, give an O(n)-time algorithm that finds the longest subarray of A such that all the numbers in that subarray are in sorted order. Your algorithm...
X Y Obs 1 -3 2 Obs 2 -2 1 Obs 3 1 2 Obs 4...
X Y Obs 1 -3 2 Obs 2 -2 1 Obs 3 1 2 Obs 4 2 0 Obs 5 2 -5 Consider a random sample of 5 paired measurements in the following format. It is easy to demonstrate that the sample mean of each variable is 0. Using Microsoft Excel, compute the following: Calculate the sample standard deviation of X. Calculate the sample standard deviation of Y. Calculate the covariance of X and Y. Calculate the correlation coefficient of...
Question 4: Match the words (from the options below) to the statements by inserting the corresponding...
Question 4: Match the words (from the options below) to the statements by inserting the corresponding capital letter in the blank. No word is used more than once (2 Points for (i) to (xii), 1 point for (xiii). (i) If you double the frequency of electromagnetic radiation you ______ the energy. (ii) If you double the wavelength of electromagnetic radiation you _____ the energy. (iii) A ____ produces an electric signal when struck by photons. (iv) A ____ produces many...
QUESTION 1 Right now I am in the beautiful city of Vancouver, Canada but can't enjoy...
QUESTION 1 Right now I am in the beautiful city of Vancouver, Canada but can't enjoy my time here since I have to put the homework online for you to learn. There is a place called Grouse Mountain which has a very nice view of the whole city at night and a few good restaurants. There are a lot of tourists like myself. I would like to know what is the proportion of the tourists are from the USA? Suppose...
1) The process of inferring a population parameter from sample data is? 2) [x] is the...
1) The process of inferring a population parameter from sample data is? 2) [x] is the probability distribution of values that might be obtained for an estimate of a population parameter. 3) The sample standard deviation (s) divided by the square root of the sample size (n) is the [x] 4 The [x] confidence interval provides a most-plausible range for a parameter. On average, these values calculated from independent random samples will include the value of the parameter 19 time...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT