ANSWER - D) No change in frequency domain.
Explanation - shifting time domain in fourier does not necessarily changed the frequency , fourier fourier can have a phase shift that is in proportion with frequency.
Note: 1) Do ask if you find any difficulty.
2)Do upvote if you are satisfied by the answer.
Question 35 1 pts Shift in time domain results in: Convolution in frequency domain Multiplication by...
Question 13 1 pts Multiplication in the time domain is: 1st derivative in frequency domain Addition in frequency domain Multiplication in frequency domain Convolution in frequency domain Question 14 1 pts Laplace and Fourier transforms convert integro-differential equations in time domain to None of the above Trigonometric equations Logarithmic equations Algebraic equations
Question 12 Frequency shift in S domain results in: None of the above 1st derivative in time domain Integral in time domain Multiplication by an exponential function (e-at) in time domain
Question 9 1 pts The convolution of 2 time domain signals is a function of Impulse response Frequency None of the above Time Question 10 1 pts Convolution of 2 signals is commutative. This statement is: True (meaning that the order of convolution does not matter) False (meaning that the order of convolution matters) Can't say Both true and false at the same time
Question 11 1 pts An LTI system is BIBO stable if and only if the impulse response h(t) is: Discrete Differentiable Continuous Absolutely integrable Question 12 1 pts Frequency shift in S domain results in: None of the above Ist derivative in time domain Integral in time domain Multiplication by an exponential function (e-at) in time domain
Question 11 pts x(t) is a time domain function. The laplace transform of x(t) is in what domain: s domain none of the above f domain time domain Flag this Question Question 21 pts if X(s) is the Laplace transform of x(t), then 's' is a : real number integer complex number rational number Flag this Question Question 31 pts In a unilateral Laplace transform the integral, the start time is just after origin (0+) just before origin (0-) origin...
The total energy of a signal can be calculated in time domain or the frequency domain. This is a result of: Parseval's theorem None of the above Laplace theorem Fourier theorem
Solution required in MATLAB 1. Convolution and Discrete-Time Fourier Series (DTFS) (a) Generate a periodic signal r2[n] with the fundamental period N ralla-sin(2nn/ İ0) + sin(2m, 2 ) + sin(2nn/30) for 0 < n < N-1 Find the fundamental frequency Ω0-2, N, with the fundamental period N. (b) Generate a periodic signal h2[n] with the fundamental period N haln] = (1/2)", for 0 < n < N-1 (e) Using the com ftuction n Matab, compute the compvolution (d) Using the...
Question 33 1 pts Fourier transform of the impulse response of a system is: Same as Laplace transform of the Impulse response Same as step response Same as the frequency response None of the above Question 34 1 pts The total energy of a signal can be calculated in time domain or the frequency domain. This is a result of: None of the above Parseval's theorem Laplace theorem Fourier theorem
1. Draw frequency domain representations (sketches of the real and imaginary parts of the Fourier transform) for both cos(2*pi*fc*t) and sin(2*pi*fc*t), for a carrier waveform. ____________________ Now suppose we have a sinusoidal signal of frequency fi, where fi << fc. Let the signal be m(t)=cos(2*pi*fi*t) and the carrier be cos(2*pi*fc*t). Say we mix m(t) up to carrier frequency fc when we multiply m(t) by the carrier to create the modulated signal, s(t) = m(t) * cos(2*pi*fc*t). Draw the real part...
1. (a) You have seen that the Fourier transform of cos(wt) and sin(wt) func- tions results in even and odd combinations of delta functions in the frequency domain. Prove the opposite. That is, find the combination of delta functions in the time domain that give cosine and sine functions in the frequency domain. (b) Use the signum function to relate these two combinations of delta functions and use the convolution theorem to show that sin (wt) = cos (wt) *...