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ECET 345 Inspiring Minds/newtonhelp.com
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ECET 345 Inspiring Minds/newtonhelp.com

• ECET 345 Week 1 Homework
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• 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.

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

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• ECET 345 Week 2 Lab Response OfRc Circuits (100
  Score)
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• Objective of the lab experiment
• The objective of this experiment is to
  experimentally measure the step response of an
  RC circuit and compare it to response prediced
  using MATLAB

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• ECET 345 Week 3 Homework
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• ECET 345 Week 3 Homework
• The transfer function of a circuit is given by

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• ECET 345 Week 3 Lab Transfer Function Analysis Of
  Continuous Systems
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• ECET 345 Week 3 Lab Transfer Function Analysis of
  Continuous Systems
• Objective of the lab experiment
• The objective of this experiment is to create
  continuous (s domain) transfer functions in
  MATLAB and explore how they can be manipulated to
  extract relevant data.

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• ECET 345 Week 4 Homework
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• ECET 345 Week 4 Homework
• 1. A shiny metal disk with a dark spot on it,
  as shown in figure below, is rotating clockwise
  at 100 revolutions/second in a dark room. A human
  observer uses a strobe that flashes 99
  times/second to observe the spot on the metal
  disk (a strobe is a flashing light whose rate of
  flashing can be varied). The spot appears to the
  human observer as if it is rotating slowly
• 2. (a) A system samples a sinusoid of frequency
  480 Hz at a rate of 100 Hz and writes the sampled
  signal to its output without further
  modification. Determine the frequency that the
  sampling system will generate in its output.

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• ECET 345 Week 4 Lab Experimental Observation Of
  Aliasing (100 Score)
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• ECET 345 Week 4 Lab
• Objective of the lab experiment
• The objective of this experiment is to observe
  the effect of aliasing in a discrete sampling
  system and to measure how aliasing alters the
  frequency of an input signal that is beyond the
  Nyquist limit. This lab can also be used to
  quantitatively and qualitatively observe the
  effect of an antialiasing filter, even though we
  do not do so in this exercise.

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• ECET 345 Week 5 Ilab Convolution Of Signals
  Solution (100 Score)
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• Objective of the lab experiment
• The objective of this experiment is to
  demonstrate how the convolution is used to
  process signals entering a system.
• 1. Convolution in the time domain is equivalent
  to what mathematical operation in the frequency
  domain?
• 2. When we convolve the triangular 10 Hz input
  with the impulse response of the 50 Hz low-pass
  filter, why is it that the peaks of output become
  rounded and not a sharp point as in the input
  triangular function?
• 3. Why is it that we get no (or very little)
  output when we convolve the 60 Hz sinusoid with
  the impulse response of the filter?
• 4. When we apply the 10 Hz output, which is
  within the pass band of the filter, we see that
  we get nearly the same sinusoid in the output
  except for a time delay. How is the time delay a
  signal experiences as it passes through a system
  related to the phase characteristic of the system
  response?

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• ECET 345 Week 6 Homework
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• ECET 345 Week 6 Homework
• 1.Find the z-transform x(z) of x(n) . Hint
  Follow the method used in the lecture for Week 6.
  Also, when evaluating the numerical value of a
  trig function, keep in mind that the arguments of
  trig functions are always in radians and not in
  degrees.
• 2. Find the system transfer function of a causal
  LSI system whose impulse response is given by and
  express the result in positive powers of z. Hint
  The transfer function is just the z-transform of
  impulse response. However, we must first convert
  the

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• ECET 345 Week 6 Lab Z-Domain Analysis Of Discrete
  Systems (100 Score)
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• ECET 345 Week 6 Lab Z-Domain Analysis of Discrete
  Systems
• Objective of the lab experiment
• The objective of this experiment is to perform z
  domain analysis of discrete (sampled) signals and
  systems and extract useful information (such as
  impulse and step response, pole zero
  constellation, frequency response, etc.) from a z
  domain description of the system, such as its
  transfer function.

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• ECET 345 Week 7 ilab Fourier Analysis Of Time
  Domain Signals Solution (100 Score)
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• Objective of the lab experiment
• The objective of this experiment is to perform
  Fourier analysis to obtain frequency domain
  signature of signals and systems that are
  measured or whose characteristics are known in
  time domain. Towards this end, we shall learn how
  to use Fourier transform to obtain Bode plots of
  systems from time domain data passing through the
  system. We shall also learn the equivalence of
  convolution operation in time domain with
  multiplication operation in frequency domain.
• (a) Application of Fourier transform to time
  domain signals

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