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Question 9 1 pts The convolution of 2 time domain signals is a function of Impulse...
Question 35 1 pts Shift in time domain results in: Convolution in frequency domain Multiplication by...
Question 35 1 pts Shift in time domain results in: Convolution in frequency domain Multiplication by an exponential function in frequency domain None of the above No change in frequency domain
Question 33 1 pts Fourier transform of the impulse response of a system is: Same as...
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
Question 13 1 pts Multiplication in the time domain is: 1st derivative in frequency domain Addition...
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 11 1 pts An LTI system is BIBO stable if and only if the impulse...
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...
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...
QUESTION 1 Consider a system of impulse response h[n] of transfer function H(z) with distinct poles...
QUESTION 1 Consider a system of impulse response h[n] of transfer function H(z) with distinct poles and zeros. We are interested in a system whose transfer function G(z) has the same poles and zeros as H(z) but doubled (meaning that each pole of H(z) is a double pole of G(z), and same for the zeros). How should we choose g[n]? g[n]=h[n]+h[n] (addition) g[n]=h[n].h[n] (multiplication) g[n]=h[n]th[n] (convolution) None of the above
a = 3 signals and systems 1) [10 pts. Let a system be defined as ta...
a = 3
signals and systems
1) [10 pts. Let a system be defined as ta y(t) x(31 - 2a)dt 2a Is this system b) No b) No b) No vii) memoryless? a) Yes viii) Linear? a) Yes ix) Time invariant? a) Yes x) Causal? a) Yes xi) BIBO stable? a) Yes 2) [5 pts. What is the impulse response h(t)? 3) [10 pts.] Let a signal in s domain b) No b) No 2 Y(S) Sa What is the...
Question 1 (10 pts): Consider the continuous-time LTI system S whose unit impulse response h is given by Le., h consists of a unit impulse at time 0 followed by a unit impulse at time (a) (2pts)...
Question 1 (10 pts): Consider the continuous-time LTI system S whose unit impulse response h is given by Le., h consists of a unit impulse at time 0 followed by a unit impulse at time (a) (2pts) Obtain and plot the unit step response of S. (b) (2pts) Is S stable? Is it causal? Explain Two unrelated questions (c) (2pts) Is the ideal low-pass continuous-time filter (frequency response H(w) for H()0 otherwise) causal? Explain (d) (4 pts) Is the discrete-time...
QUESTION THREE With the aid of a diagram define impulse response fully using correct 141 a) Notation 141 Find the impulse response of a discrete time accumulator b) 15) c) Derive the convolution...
QUESTION THREE With the aid of a diagram define impulse response fully using correct 141 a) Notation 141 Find the impulse response of a discrete time accumulator b) 15) c) Derive the convolution sum esent the operations in cji) with a diagram and explain the importance of an impulse response to a discrete time L.TI system 16) in) Consider a causal L.TI discrete-time system with an impulse response h1n1-r 비nl where pct Determine the output sequence yln] 161 for a...
CHAPTER 2-FOURIER TRANSFORMS (30) The table shows a sequence of signals or operations (rows A to...
CHAPTER 2-FOURIER TRANSFORMS (30) The table shows a sequence of signals or operations (rows A to E) in the time 1. domain. Note the symbols for multiplication X and convolution a. Draw the signals and the results in the time and frequency domains b. Draw to scale. Label and tick-mark all the graphs. c. Justify. Use the last column to back up your answer SIGNALS AND OPS FREQUENCY EXPLANATION (AMPLITUDE) TIME MATH Sine wave A Period T Pulse width 4×T...
Question 35 1 pts Shift in time domain results in: Convolution in frequency domain Multiplication by an exponential function in frequency domain None of the above No change in frequency domain
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
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 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 1 Consider a system of impulse response h[n] of transfer function H(z) with distinct poles and zeros. We are interested in a system whose transfer function G(z) has the same poles and zeros as H(z) but doubled (meaning that each pole of H(z) is a double pole of G(z), and same for the zeros). How should we choose g[n]? g[n]=h[n]+h[n] (addition) g[n]=h[n].h[n] (multiplication) g[n]=h[n]th[n] (convolution) None of the above
a = 3
signals and systems
1) [10 pts. Let a system be defined as ta y(t) x(31 - 2a)dt 2a Is this system b) No b) No b) No vii) memoryless? a) Yes viii) Linear? a) Yes ix) Time invariant? a) Yes x) Causal? a) Yes xi) BIBO stable? a) Yes 2) [5 pts. What is the impulse response h(t)? 3) [10 pts.] Let a signal in s domain b) No b) No 2 Y(S) Sa What is the...
Question 1 (10 pts): Consider the continuous-time LTI system S whose unit impulse response h is given by Le., h consists of a unit impulse at time 0 followed by a unit impulse at time (a) (2pts) Obtain and plot the unit step response of S. (b) (2pts) Is S stable? Is it causal? Explain Two unrelated questions (c) (2pts) Is the ideal low-pass continuous-time filter (frequency response H(w) for H()0 otherwise) causal? Explain (d) (4 pts) Is the discrete-time...
QUESTION THREE With the aid of a diagram define impulse response fully using correct 141 a) Notation 141 Find the impulse response of a discrete time accumulator b) 15) c) Derive the convolution sum esent the operations in cji) with a diagram and explain the importance of an impulse response to a discrete time L.TI system 16) in) Consider a causal L.TI discrete-time system with an impulse response h1n1-r 비nl where pct Determine the output sequence yln] 161 for a...
CHAPTER 2-FOURIER TRANSFORMS (30) The table shows a sequence of signals or operations (rows A to E) in the time 1. domain. Note the symbols for multiplication X and convolution a. Draw the signals and the results in the time and frequency domains b. Draw to scale. Label and tick-mark all the graphs. c. Justify. Use the last column to back up your answer SIGNALS AND OPS FREQUENCY EXPLANATION (AMPLITUDE) TIME MATH Sine wave A Period T Pulse width 4×T...
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