Linear System
Time-invariant, impulse response function
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1. Consider a system R(α, β) which can be represented by operators P,, Qß. R(α, β) Here P is a tr...
2. Consider a linear time-invariant system with transfer function H(s)Find the (s + α)(s + β) impulse response, h(t), of the system 2. Consider a linear time-invariant system with transfer f...
2. Consider a linear time-invariant system with transfer function H(s)Find the (s + α)(s + β) impulse response, h(t), of the system
2. Consider a linear time-invariant system with transfer function H(s)Find the (s + α)(s + β) impulse response, h(t), of the system
1. Suppose that Y ∼ Gamma(α, β) and c > 0 is a constant. (a) Derive the density function of U ...
1. Suppose that Y ∼ Gamma(α, β) and c > 0 is a constant. (a)
Derive the density function of U = cY. (b) Identify the
distribution of U as a standard distribution. Be sure to identify
any parameter values. (c) Can you find the distribution of U using
MGF method also?
I. Suppose that Y ~ Gamma(α, β) and c > 0 is a constant. (a) Derive the density function of U cY. (b) Identify the distribution of U...
1. Problems on unitary operators. For a function f(r) that can be expanded in a Taylor...
1. Problems on unitary operators. For a function f(r) that can be expanded in a Taylor series, show that Here a is a constant, and pis the momentum operator. The exponential of an operator is defined as ea_ ??? i,O" Verify that the unitary operator elo/h can be constructed as follows (Hint: Notice that f(x +a) (al) and eohf())) e Prove that Here is the position operator. (Hint: You may work in the momentum space, in which p = p...
P2.19 A linear and time-invariant system is described by the difference equation y(n) 0.5y(n 10.25y(n 2)-x(n)...
P2.19 A linear and time-invariant system is described by the difference equation y(n) 0.5y(n 10.25y(n 2)-x(n) + 2r(n - 1) + r(n -3) 1. Using the filter function, compute and plot the impulse response of the system over 0n100. 2. Determine the stability of the system from this impulse response. 3. If the input to this system is r(n) 5 3 cos(0.2Tm) 4sin(0.6Tn)] u(n), determine the 200 using the filter function response y(n) over 0 n
Problem 4. Given the input/output system represented by t-1 y(t) = 2 ( x(y - 3)...
Problem 4. Given the input/output system represented by t-1 y(t) = 2 ( x(y - 3) dy where x(t) is the input and y(t) is the output, a) Determine whether the system is linear or non-linear. b) Determine the impulse response h(t, to) of the system by setting x(t)= 8(t–to). c) Determine whether the system is time invariant or time variant. d) Determine whether the system is causal or non-causal.
(L43*) Spin can be represented by matrices. Show that all three spin matrices l 0 2 0 -1 0),"2=2 1 have eigenval...
(L43*) Spin can be represented by matrices. Show that all three spin matrices l 0 2 0 -1 0),"2=2 1 have eigenvalues of +1/2h and -1/2h. Calculate the corresponding eigenfunctions which we will denote as α-and β-eigenfunctions corresponding to spin l/2 particles. Show that Sj can be determined by the commutation of the other two matrices sn and sm, n, maj. Prove that the (2×2) matrix sz-s' +ss+s, commutes with all spin matrices, ie. s2s,-sis-. Calculate the eigenvalues of s2....
4. Let G : P(R) → P2(R) be a linear map given by G(u)(x) = (x...
4. Let G : P(R) → P2(R) be a linear map given by G(u)(x) = (x + 1)u'r) - ur). Is G diagonalizable? If it is, find a basis of P(R) in which G is represented by a diagonal matrix 5. Let V = P2(C). Show that the operator (.) given by (u, v) = u(0) v(0) + u(1) v(1) + u(2) v(2) Vu, v E V is an inner product on V.
The diagram in Fig. 1 depicts a cascade connection of two linear time-invariant systems; i.e., the...
The diagram in Fig. 1 depicts a cascade connection of two linear time-invariant systems; i.e., the output of the first system is the input to the second system, and the overall output is the output of the second system. LTI System #1 hi[n] LTI System #2 h21n] r[n] iIn] yInl Figure 1: Cascade connection of two LTI systems (a) Suppose that System #l is a blurring filter described by the impulse response 0 "=0.1.2.3.4.5 n>5 and System #2 is described...
3. (20 pts) Consider a periodic signal x(t) which can be represented by the first K Fourier Serie...
3. (20 pts) Consider a periodic signal x(t) which can be represented by the first K Fourier Series coefficients. Determine the impulse response of the system that can yield x(t) when it is contaminated by a noise r(t) (i.e., the input to the system is x(t)r(t) and the output is r(t)), assuming that r(t) is composed of only very high-frequency components (namely, Ffr(t)) Rjw)-0 for lul < K2π/T, where T is the period of x(t))
3. (20 pts) Consider a...
2. The ladder operators can be used to determine the lowest eigenstate (ground state) of the...
2. The ladder operators can be used to determine the lowest eigenstate (ground state) of the harmonic oscillator by using the following relation of the annihilation operator, à alo) - 0 This equation is fundamental to ladder operators and implies that it is not possible to step down further in energy than the ground state. Determine the ground state wave function h(x (i.e. [0) using the relation above and the following information The annihilation operator is defined as: ) ·The...
2. Consider a linear time-invariant system with transfer function H(s)Find the (s + α)(s + β) impulse response, h(t), of the system
2. Consider a linear time-invariant system with transfer function H(s)Find the (s + α)(s + β) impulse response, h(t), of the system
1. Suppose that Y ∼ Gamma(α, β) and c > 0 is a constant. (a)
Derive the density function of U = cY. (b) Identify the
distribution of U as a standard distribution. Be sure to identify
any parameter values. (c) Can you find the distribution of U using
MGF method also?
I. Suppose that Y ~ Gamma(α, β) and c > 0 is a constant. (a) Derive the density function of U cY. (b) Identify the distribution of U...
1. Problems on unitary operators. For a function f(r) that can be expanded in a Taylor series, show that Here a is a constant, and pis the momentum operator. The exponential of an operator is defined as ea_ ??? i,O" Verify that the unitary operator elo/h can be constructed as follows (Hint: Notice that f(x +a) (al) and eohf())) e Prove that Here is the position operator. (Hint: You may work in the momentum space, in which p = p...
P2.19 A linear and time-invariant system is described by the difference equation y(n) 0.5y(n 10.25y(n 2)-x(n) + 2r(n - 1) + r(n -3) 1. Using the filter function, compute and plot the impulse response of the system over 0n100. 2. Determine the stability of the system from this impulse response. 3. If the input to this system is r(n) 5 3 cos(0.2Tm) 4sin(0.6Tn)] u(n), determine the 200 using the filter function response y(n) over 0 n
Problem 4. Given the input/output system represented by t-1 y(t) = 2 ( x(y - 3) dy where x(t) is the input and y(t) is the output, a) Determine whether the system is linear or non-linear. b) Determine the impulse response h(t, to) of the system by setting x(t)= 8(t–to). c) Determine whether the system is time invariant or time variant. d) Determine whether the system is causal or non-causal.
(L43*) Spin can be represented by matrices. Show that all three spin matrices l 0 2 0 -1 0),"2=2 1 have eigenvalues of +1/2h and -1/2h. Calculate the corresponding eigenfunctions which we will denote as α-and β-eigenfunctions corresponding to spin l/2 particles. Show that Sj can be determined by the commutation of the other two matrices sn and sm, n, maj. Prove that the (2×2) matrix sz-s' +ss+s, commutes with all spin matrices, ie. s2s,-sis-. Calculate the eigenvalues of s2....
4. Let G : P(R) → P2(R) be a linear map given by G(u)(x) = (x + 1)u'r) - ur). Is G diagonalizable? If it is, find a basis of P(R) in which G is represented by a diagonal matrix 5. Let V = P2(C). Show that the operator (.) given by (u, v) = u(0) v(0) + u(1) v(1) + u(2) v(2) Vu, v E V is an inner product on V.
The diagram in Fig. 1 depicts a cascade connection of two linear time-invariant systems; i.e., the output of the first system is the input to the second system, and the overall output is the output of the second system. LTI System #1 hi[n] LTI System #2 h21n] r[n] iIn] yInl Figure 1: Cascade connection of two LTI systems (a) Suppose that System #l is a blurring filter described by the impulse response 0 "=0.1.2.3.4.5 n>5 and System #2 is described...
3. (20 pts) Consider a periodic signal x(t) which can be represented by the first K Fourier Series coefficients. Determine the impulse response of the system that can yield x(t) when it is contaminated by a noise r(t) (i.e., the input to the system is x(t)r(t) and the output is r(t)), assuming that r(t) is composed of only very high-frequency components (namely, Ffr(t)) Rjw)-0 for lul < K2π/T, where T is the period of x(t))
3. (20 pts) Consider a...
2. The ladder operators can be used to determine the lowest eigenstate (ground state) of the harmonic oscillator by using the following relation of the annihilation operator, à alo) - 0 This equation is fundamental to ladder operators and implies that it is not possible to step down further in energy than the ground state. Determine the ground state wave function h(x (i.e. [0) using the relation above and the following information The annihilation operator is defined as: ) ·The...
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