Question
Asked Dec 1, 2019
54 views
4. Z-Transform: Consider the following three discrete-time LTI systems:
1
1
H1(2) 1
H2(2)
H3(2)
=
1 0.82-1
1 - 0.82-1
Name all systems (if any) that ...
(a) have a real-valued impulse response
(b) have a non-zero output when the input is x[n]
= 1
(c) could be called an LPF
help_outline

Image Transcriptionclose

4. Z-Transform: Consider the following three discrete-time LTI systems: 1 1 H1(2) 1 H2(2) H3(2) = 1 0.82-1 1 - 0.82-1 Name all systems (if any) that ... (a) have a real-valued impulse response (b) have a non-zero output when the input is x[n] = 1 (c) could be called an LPF

fullscreen
check_circle

Expert Answer

Step 1

Given discrete-time LTI systems are

help_outline

Image Transcriptionclose

Н. (2)-1-2* 1 Н. (2)- 1+0.8 1 н.(2) -; 1 -0.8z

fullscreen
Step 2

Part (a)-

although

filter co-efficient of H1(z) is -1

filter co-efficient of H2(z) is +0.8

filter co-efficient of H3(z) is -0.8

so, all three discrete-time LTI system have real valued filter co-efficient therefore all have real valued impulse response.

Step 3

Part (b)-

Given Input is, x[n]=1

z-t...

help_outline

Image Transcriptionclose

+o X(?) - Σ x[up" X(2) - Σ1z"η X(2)-Σ -n n1 n- 1 1 X(z) 1 z Z Z ROC Z1 Although no common ROC present inX (z) ROCZ1 hence X (z)does not exist N

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Engineering

Electrical Engineering

Related Electrical Engineering Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: Please find out the modulation index part only.

A: For an amplitude modulated system, modulation index mp is defined as the ratio of the amplitude of t...

question_answer

Q: QUESTION THREE a)A single phase haf wave controle rctifer suppies a 1KQ resistor. Ifthe peak voltage...

A: The single-phase half wave rectifier consisting of the SCR having firing angle 60 degrees. The  inpu...

question_answer

Q: For sinusoidal modulation in an AM system, what will be the value of the modulation index when the m...

A: For an amplitude modulated system under sinusoidal modulation, the modulation index (m) can be evalu...

question_answer

Q: What will be the equivalent noise temperature for a noise figure of 8 dB?

A: For any system or device or circuit component, noise temperature can be used as a measure of its noi...

question_answer

Q: R R yUK tngiering If C 0.001 F, L = 0.5 H, and R = 170 N, solve for the transmission parameters of t...

A: Calculating ohmic value of L and C

question_answer

Q: What is a current?

A: The electric current is rate of flow of electric charge through a conducting medium with respect to ...

question_answer

Q: Assume that even though the supply voltages are not shown, the op-amp remains in the linear region o...

A: Apply voltage division rule and find voltage of 3kΩ resistor connected at +ve terminal of op-amp. Co...

question_answer

Q: Calculate discrete Fourier transform for the following non-periodical discrete signal.

A: The given non-periodic discrete signal is,

question_answer

Q: Draw a one line diagram showing a bell that rings in absence of flow.include a swtich to turn off th...

A: The flow switch is a mechanical device that sends, trip signals to the motor or any other device (pu...