Question

CHAPTER 11: DISCRETE-TIME SIGNAL (TEXTBOOK SIGNALS AND SYSTEM BY MAHMOOD NAHVI)' 54. Given x(n) = 0.5nu(n),...

CHAPTER 11: DISCRETE-TIME SIGNAL (TEXTBOOK SIGNALS AND SYSTEM BY MAHMOOD NAHVI)'

54. Given x(n) = 0.5nu(n), sketch and label the following
a) ?(? − 3)
b) x(3 - n)
c) ?(? + 3)
d) ?(−? − 3)

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
CHAPTER 13: DISCRETE-TIME SIGNAL (TEXTBOOK SIGNALS AND SYSTEM BY MAHMOOD NAHVI 11. In an LTI system,...
CHAPTER 13: DISCRETE-TIME SIGNAL (TEXTBOOK SIGNALS AND SYSTEM BY MAHMOOD NAHVI 11. In an LTI system, x(n) is the input and h(n) is the unit-sample response. Find and sketch the output y(n) for the following cases: i) x(n) = 0.3nu(n) and h(n) = 0.4nu(n) ii) x(n) = 0.5nu(n) and h(n) = 0.6nu(n) iii) x(n) = 0.5|n|u(n) and h(n) = 0.6nu(n)
: The Root Mean Square of a discrete-time signal is given by We can easily calculate...
: The Root Mean Square of a discrete-time signal is given by We can easily calculate the RMS of signals in MATLAB using a combination of the sum, sqrt, and ^ commands. N represents the number of samples of the signal. Please note that the command .^ applied to a vector squares each element of the vector. Write a script to calculate the RMS of the discrete-time signal x, defined as follows: n = a vector of number between -23...
System 3 : Consider the discrete time system represented by the following difference equation: y(n) ?...
System 3 : Consider the discrete time system represented by the following difference equation: y(n) ? x(n) ? x(n ? 2) ? 0.8y(n ?1) ? 0.64 y(n ? 2) a) Draw the corresponding BLOCK DIAGRAM b) Obtain the TRANSFER FUNCTION, H(z) , for this system.   c) Calculate and plot the POLES and ZEROS of the transfer function. d) State the FREQUENCY RESPONSE Equation ,  H(ej? ) , for this system.    System 4 : Consider the discrete time system represented by...
The signal x[n] is the input of an LTI system with impulse function of h[n]. x[n]...
The signal x[n] is the input of an LTI system with impulse function of h[n]. x[n] = (0.4)^n u[n] and h[n] = (0.2)^n u[n]. (a) What is the DTFT of the output of the LTI system? (b) What are the Energy density spectrums of the input and output signals? (c) What would be the inverse DTFT: X(w) = 1/(1-0.25e^-j(w-2)) (d) How would part (c) differ for the DTFT: X(w) = 1/(1-0.25e^-j(w-2)) + 1/(1-0.25e^-j(w+2))
Q3: Given the following two voltage signals in time domain a) Determine which signal is leading...
Q3: Given the following two voltage signals in time domain a) Determine which signal is leading and what is the angle difference between them b) Show each signal in frequency domain and what is the frequency of the signals in hertz? V1 (t) = 3 cos (1000 t - 20) V2 (t) = -4 sin (1000 t + 45)
a. A digital signal x(n) is defined as x(n)=u(n+5)-u(n-5) Calculate the signal x1(n)=x(-2n-6) by direct method,...
a. A digital signal x(n) is defined as x(n)=u(n+5)-u(n-5) Calculate the signal x1(n)=x(-2n-6) by direct method, represent the signal in sequence form and sketch the signal. b. By performing combination of time shifting and time scaling of x(n) how x1(n) can be generated? Plot the waveforms in matlab for each step.
Q No 1: Here R=18 A continuous time signal x(t) is defined as x(t) = {...
Q No 1: Here R=18 A continuous time signal x(t) is defined as x(t) = {               -2R,           -0.65 < t < 0                     R,               0 < t < 1               0.5R,                1 < t < 1.25                    0,                 otherwise Then sketch and label following signals (i) x(-t) [u(t+1.25)-u(t-0.75)] (ii) Ev{x(t)} (iii) Od{x(t)} (iv) x(2.5t) (v) x(0.25t)
A discrete time system can be i. Linear or non-linear ii. Time invariant or Time Variant...
A discrete time system can be i. Linear or non-linear ii. Time invariant or Time Variant iii. Causal or noncausal iv. Stable or unstable v. Static Vs Dynamic Examine the following systems with respect to every property mentioned above and give a brief explanation. a. y[n] = x[n]δ[n − 1] b. y[n] = x[n] + nu[n + 1] c. y(n) = x(2. n) d. y(n) = 3. x(n)
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...
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,...