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Laboratory
Project 2
AM and DSB-SC
Modulation and Detection
Suggestions
for a Good Laboratory Report
- The
following suggestions, specific to the various sections of your lab
report are meant to be a listing of minimum expectations.
- There is
a lot to discover about ECOMMS as you do the labs - so keep your eyes
and ears open - and record everything! (Also have fun...).
- Feel
free to experiment - i.e. do more than the suggested lab activity. This
will improve your lab score.
- You are
encouraged to observe and record more than the minimum suggested here -
this will also improve your lab score.
- Talk to
the instructor often - especially when you see/hear something that you
cannot explain.
Page 1. Cover
page
- Project Number
- Project Title.
- Course Number.
- Names of Group
Members.
- Date handed in.
Pages 2 - 5
- Objective
- Equipment and Software
used.
- List exactly
what you used.
- Approach (Theory)
- Part 1:
Derive the design the equation for the envelope detector. Why does the envelope
detector exhibit ripple and harmonic distortion? How do the effects of
ripple and harmonic distortion appear in the time and frequency
domains? What effects do these have on AF sound quality? What do we
expect to see in the time and frequency domains when we vary the SNR?
What effects does this have on AF sound
quality?
- Part 2: What
do we expect to see in the time and frequency domains?
- Procedure
- List
what you actually did.
Page 6 -
- Results (tables and
graphs)
- Matlab
figures of the time and spectral domain representations of the various
waveforms - label all axes.
- Discussion of Results
and Conclusions.
- Did you
see what you expected in the time and spectral domains? If not, why
not?
- List
the virtues and limitations of AM and DSB-SC as you have observed in
your laboratory experiments.
Appendix
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