A discrete-tiem signal x(N) is defined ast
(1) Determine the signal vlaues and sketch (draw) it
(2) Sketch x(-n+4) and x(3n). (3) Can you express x(n) in terms of uin) and 6(n).
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1.Given a discrete-time signal defined as and the values at other instants equal zero. a) y(n)-x(2-n (b) y(n) x(3n-4) (c) y(n)-x(n) Sketch each of the following: 1.Given a discrete-time signal defined as and the values at other instants equal zero. a) y(n)-x(2-n (b) y(n) x(3n-4) (c) y(n)-x(n) Sketch each of the following:
e sequence to be periodic ? Repeat, I - J S IVUNE) TUUSI I LUNI). 3. For the discrete-time signal shown in the figure, sketch each of the following signals. a. x(2-n) b. x(3n - 4) In +8 c. x -- 4 d. x(2 – n) – x(3n - 4) 4. Determine whether the following signals are periodic; if periodic, determine
Consider the DT LTI system defined by the mpulse response h[n] = ?[n] The input to this system is the signal rn: ?[n-1) (a) Sketch h[n] and r[n] (b) Determine the output of the systern, ylnj, using convolution. Sketch y[n] (c) Determine the DTFTs H(e) and X(e. Make fully-labeled sketches of the magni- tudes of these DTFTs (d) Recall that the discrete Fourier transform (DFT) is simply defined as samples of the discrete-time Fourier transform (DTFT). Compute the 4-point (N-4)...
So sorry for the long question, I am able to do a) and b) but not sure about the rest 2. Consider the DT LTI system defined by the impulse response h[n]-i[n]-?[n-1]. The input to this system is the signal rn: (a) Sketch hn and n (b) Determine the output of the system, y[n], using convolution. Sketch y[n (c) Determine the DTFTs H(ei) and X(e). Make fully-labeled sketches of the magn tudes of these DTFTs. (d) Recall that the discrete...
Prob. 2 Discrete-Time Fourier Series (DTFs) (a) A periodic signal, rin] is shown below. Use the analysis equation to determine the discrete-time Fourier Series (DTFS) coefficients, a. Express the a in terms of cosines [72] -2 N= -3 (b) Sketch the spectrum, as vs. k for -5Sk s5. Please note each value. ak 2 5 Prob. 2 (cont.) -Discrete-Time Fourier Series (CTFS) (c) A periodic signal rafnl is given below. a2In] 2 1 E -3 what is the fundamental period...
lig. 1 Problem 2) (20 points) A discrete-time signal x[n] is shown in Fig. 2. Sketch and label each of the following signals a) x[2n - 2] b) x[3n – 1] c) x[1 – n] d) x[-n - 1] x[n] -2 -1 0 1 2 1 4 n +-2 Fig. 2
DSP 4. (12 points) (a) (4 points) Let x[n] = {1,2, 1, 2} and h[n] = {1,-1,1, -1} be two length-4 sequences defined for 0 <n<3. Determine the circular convolution of length-4 y[n] = x[n] 4 hin). (b) (6 points) Find the 4-point discrete Fourier transform (DFT) X[k], H[k], and Y[k]. (c) (2 points) Find the 4-point inverse DFT (IDFT) of Z[k] = {X[k]H[k].
1. Find the discrete-time Fourier series (DTFS) and sketch their spectra D. and ZD, for 05rs N. -1 for the following periodic signal: x[n] = 4 cos 2.41en+ 2 sin 3.2an 2. If x[n] = [0, 1, -2, 3, 4, 5, -6], determine No and 120 for this sequence.
I got help with task 1 and 2 . can you help me with task 3 and 4 of this question. please help me step for step thanks. A signal x[n] modulated by multiplying it by a carrier wave cos(2*p1"/cm) to form the signal z[n] = cos(2"p1"Vcm)x[n] ·The modulated signal z[n] multiplies with the same carrier wave to give the signal y[n]=cos(2*pi"Vcm)z[n] and filters with an LT-system to give x-hat [n] . all this are described by the picture below...
(a) Consider a discrete-time signal v[n] satisfying vn0 except if n is a multiple of some fixed integer N. i.e oln] -0, otherwise where m is an integer. Denote its discrete-time Fourier transform by V(eJ"). Define y[nl-v[Nn] Express Y(e) as a function of V(e). Hint : If confused, start with N-2 (b) Consider the discrete-time signal r[n] with discrete-time Fourier transform X(e). Now, let z[n] be formed by inserting two zeroes between any two samples of x[n]. Give a formula...