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ECET 345 ECET345 ECET/345 ENTIRE COURSE HELP – DEVRY UNIVERSITY

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ECET 345 ECET345 ECET/345 ENTIRE COURSE HELP – DEVRY UNIVERSITY

ECET 345 Week 1 Homework

ECET 345 Week 1 iLab Observation of Wave-Shapes and Their Spectrum

ECET 345 Week 1 Lab Signal Observation And Recreation (100 Score)

ECET 345 Week 2 Homework

ECET 345 Week 2 iLab Response of RC circuits

ECET 345 Week 2 Lab Response OfRc Circuits (100% Score)

ECET 345 Week 3 Homework

ECET 345 Week 3 Lab Transfer Function Analysis Of Continuous Systems

ECET 345 Week 4 Homework

ECET 345 Week 4 iLab Part 1 RC Circuit Frequency Response

ECET 345 Week 4 iLab Part 2 Experimental Observation of Aliasing

ECET 345 Week 4 Lab Experimental Observation Of Aliasing (100% Score)

ECET 345 Week 5 Homework

ECET 345 Week 5 iLab Convolution of Signals

ECET 345 Week 5 Ilab Convolution Of Signals Solution (100% Score)

ECET 345 Week 6 Homework

ECET 345 Week 6 iLab Z-Domain Analysis of Discrete Systems

ECET 345 Week 6 Lab Z-Domain Analysis Of Discrete Systems (100% Score)

ECET 345 Week 7 Homework

ECET 345 Week 7 iLab Fourier Analysis of Time Domain Signals

ECET 345 Week 7 ilab Fourier Analysis Of Time Domain Signals Solution (100% Score)

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ECET 345 ECET345 ECET/345 ENTIRE COURSE HELP – DEVRY UNIVERSITY

ECET 345 Week 1 Homework

ECET 345 Week 1 iLab Observation of Wave-Shapes and Their Spectrum

ECET 345 Week 1 Lab Signal Observation And Recreation (100 Score)

ECET 345 Week 2 Homework

ECET 345 Week 2 iLab Response of RC circuits

ECET 345 Week 2 Lab Response OfRc Circuits (100% Score)

ECET 345 Week 3 Homework

ECET 345 Week 3 Lab Transfer Function Analysis Of Continuous Systems

ECET 345 Week 4 Homework

ECET 345 Week 4 iLab Part 1 RC Circuit Frequency Response

ECET 345 Week 4 iLab Part 2 Experimental Observation of Aliasing

ECET 345 Week 4 Lab Experimental Observation Of Aliasing (100% Score)

ECET 345 Week 5 Homework

ECET 345 Week 5 iLab Convolution of Signals

ECET 345 Week 5 Ilab Convolution Of Signals Solution (100% Score)

ECET 345 Week 6 Homework

ECET 345 Week 6 iLab Z-Domain Analysis of Discrete Systems

ECET 345 Week 6 Lab Z-Domain Analysis Of Discrete Systems (100% Score)

ECET 345 Week 7 Homework

ECET 345 Week 7 iLab Fourier Analysis of Time Domain Signals

ECET 345 Week 7 ilab Fourier Analysis Of Time Domain Signals Solution (100% Score)

ECET 345 ECET345 ECET/345 ENTIRE COURSE HELP – DEVRY UNIVERSITY

ECET 345 Week 1 Homework

ECET 345 Week 1 Homework
1.Express the following numbers in Cartesian (rectangular) form.
2.Express the following numbers in polar form. Describe the quadrant of the complex plane, in which the complex number is located.
3.(a) A continuous-time sine wave has a frequency of 60 Hz, an amplitude of 117 V, and an initial phase of π/4 radians. Describe this signal in a mathematical form using the Sin function.
4. A sinusoidal signal described by 50 Cos (20πt + π/4) passes through a linear time invariant (LTI) system that applies a gain of 1.5 and a phase lag of π/2 radians to the signal. Write the mathematical expression that describes the signal that will come out of the LTI system.
5.A sinusoidal signal described by 20 Cos (2πt + π/4) passes through a linear time invariant (LTI) system that applies a gain of 2 and a time delay of 0.125 seconds to the signal. Write the mathematical expression that describes the signal that will come out of the LTI system.
6. Apply the principle of superposition to determine whether the following systems are linear. Sketch what the plot of the function looks like.
7. A continuous time system, described by y(t) = 5 Cos (2*π*20*t + π/2), is sampled at a rate 320 Hz.
8. Sketch the odd and even part of the following discrete signal. (See pages 13–14 of the text.)
9. Express the signal given in Problem 8 as the sum of the following

ECET 345 ECET345 ECET/345 ENTIRE COURSE HELP – DEVRY UNIVERSITY

ECET 345 Week 1 iLab Observation of Wave-Shapes and Their Spectrum

Objective of the lab experiment:

The objective of this experiment is to observe the shapes of different kinds of signals such as sine waves, square waves, and so on and to study how the shape of a signal alters its spectrum.

ECET 345 ECET345 ECET/345 ENTIRE COURSE HELP – DEVRY UNIVERSITY

ECET 345 Week 1 Lab Signal Observation And Recreation (100 Score)

Objective:
Using a Tower system and supplied HCS12-based program, experimentally observe the closest equivalent of four key signals (impulse, sinusoidal, exponential, and square wave) on the oscilloscope and then create them in MATLAB.
Equipment list:
• Tower System with ADCDAC board
• Oscilloscope
• Three BNC to alligator
• One PC running CodeWarrior 5.9
• MATLAB
• 2.0 mm flathead screwdriver
ECET 345 Week 1 Lab
1. How does an experimental approximation of an impulse differ from an ideal impulse?
2.  A step input is applied to the following circuit at time t = 0. What will the output waveform look like? What is the significance of the time constant for the circuit? How will the observed waveform change as the value of capacitor is increased?
3. How does a sine wave differ from a cosine wave?
4. With the knowledge you gained in the theory section, how can an exponentially growing sinusoid be generated? Can a physical system generate an exponentially growing sinusoid?
5. In finance, what does the growth curve of a compound interest savings account look like over time
6. Create a MATLAB code that generates an amplitude modulated (AM) signal with a 1 Hz information frequency and a 100 Hz carrier frequency, with the carrier amplitude equal to 1.0 and the information frequency amplitude equal to 0.9. The general form of an AM signal is
where Ac is the amplitude of the carrier, Ai is the amplitude of the information signal, ωi is the frequency of the information signal in radians/second, ωc is the frequency of the carrier signal in radians/second, and t is time. Plot the graph over the time period of 0 to 2 seconds. Give meaningful labels to the X and Y axis as well as a title to the graph
7. Take the signal generated in the previous question and find the signal spectrum using the tools you have learned in earlier labs. Paste the signal spectrum and code below. (Hint: Use the method of finding the signal spectrum of a signal that was shown in Lab 1.) Give meaningful labels to the X and Y axis as well as a title to the graph.