Q1. You are given the spectrum Xa(N) of analog signal xa(t) and spectrum H(w) (between – and ) are given. Sketch and label the Fourier transform of x[n] and of the output ya (t) for each of the following cases. Assume there are no losses at the C/D or D/C blocks. F1 and Fg2 are sampling and reconstruction frequencies, respectively. a. F= Fr2=10+ b. F- F2=2 x 104 ..104 r 104

Q1. You are given the spectrum Xa(N) of analog signal xa(t) and spectrum H(w) (between – and ) are given. Sketch and label the Fourier transform of x[n] and of the output ya (t) for each of the following cases. Assume there are no losses at the C/D or D/C blocks. F1 and Fg2 are sampling and reconstruction frequencies, respectively. a. F= Fr2=10+ b. F- F2=2 x 104 ..104 r 104

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

(a) Describe the Continuous-Time Fourier Transform and Analyze the Dirichlet conditions for CTFT.
Q1. Show that the time compression of a periodic signal by a factor of a expands the Fourier spectra by the same factor.
An analog signal x(t) = cos(320rt) + 2 cos(480t) – cos(960at ) is sampled with sampling frequency of 640 samples per second. a. Find the Nyquist frequency and Nyquist rate in Hz. b. Draw the Continuous Fourier Transform of x(t) c. Find the sampled discrete signal x[n] d. Draw the DTFT of x[n]. Find the frequencies present in the discrete signal and explain your observations
I WANNA ASK YOU THE D OPTION.
a. Which of the following is true? The Fourier transform of a unit rectangular pulse is A. real. B. not oscillating. C. complex. D. neither real nor complex. b. Which of the following is true? For system and signal operations, the symbol “*” is typically shared between A. convolution and complex conjugate. B. linear combination and complex conjugate. C. orthogonality and complex conjugate. D. multiplication and complex conjugate. c. Which of the following is true? The Fourier transform is based on A. The Fourier series by substituting the signal x(t) into Fourier coefficient’s expression. B. The Fourier series by substituting the Fourier coefficient’s expression into a random signal which is periodic over a defined period. C. The Fourier series by substituting the Fourier coefficient’s expression into x(t). D. The Fourier series because this is a logical process.
black-box Syst G Consider an input signal s4) that is passed thiough d to obtain an oud put signal rt), St) <(t) Buppose the Fourier transtorms of st) and rCt) are reed to each other as: K215 (is2) + R liz) otherwise. Is de an LTI Systemm? Justify your answer,
a) Make a plot of the normalized fft magnitude as a function of frequency (real frequency in Hz). Only display the frequency range between -1kHz and 1kHz. b) On the same figure as part (c), superimpose the magnitude of the Fourier series coefficients, |??|, as a function of frequency as a stem plot. Again, only display the frequency range between -1kHz and 1kHz. How well do they compare? Hint*: Consider making a frequency vector containing only the Fourier harmonic frequencie
The figure below shows the one-line diagram of a four- bus power system. The voltages, the scheduled real power and reactive powers, and the reactances of transmission lines are marked at this one line diagram (The voltages and reactances are in PU referred to 100 MW base. The active power P2 in MW is the last three digits (from right) of your registration number (i.e for the student that has a registration number 202112396, P2 =396). [10] Starting from an estimated voltage at bus 2, bus 3, and bus 4 equals V2 (0) = 1.15<0°, V3 = 1.15 < 0°, V4 1.1< 0°. 1- Specify the type of each bus and known & unknown quantities at each bus. 2- Find the elements of the second row of the admittance matrix (i.e. [Y21 Y22 Y23 Y24]). 3- Using Gauss-Siedal fınd the voltage at bus 2 after the first iteration. 4- Using Newton-Raphson, calculate: |- The value of real power (P2), at bus 2 after the first iteration. Il- The second element in the first row of the Jacobian matrix after the first iteration. 2 P2…
use inverse Fourier trans form formula to Prove this go t EscW- Wo) + scw+ Wo)] CS Scanned with CamScanner