Lecture on Signals and Systems
NEW: How to turn in your project reports.
Project #1 (Due on Jun./9 1:00pm)
Project #2 (Due on Jun./16 3:00pm)
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Last updated 04-05-06 ¿ÀÈÄ 02:55:00
How to write a project report.
This a guideline to produce a project report in Signals and system.
The project report should be produce in electronic form. That is, you have to use a word processor and all the graphics and results should be processed and stored in files.
You should write the report using the following template.
1. Problem Statement
In this section, you restate the given problem. It should be very concrete.
2. Attacking Method
In this section, you describe how to solve the problem which was stated in section 1. You have to present the methods and the background theories necessary to solve the problem. Also you have to state other methods to solve the problem and why you selected the specific method in hands.
3. Experiments and Results
All the byproducts of your experiments (programs and plots) are presented in this section. Specifically, the following should be described in a logical fashion.
- Methods and parameters that you produce the results (Program, Flow chart, etc.)
- The intermediate and the final results (Plots, Data)
- New facts found during the experiments
4. discussion
This section is the most important section. After you produce all the experimental result, you have to discuss the implication of all results.
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How to turn in your project reports.
After you join my Windows NT domain, you can login the domain with the user name "ls." If you want to know the password, please email me (the password has been changed). I found that you have create your own subdirectories. Please create a subdirectory under your own subdirectory. Put your first project report in the subdirectory "project1" and project 2 report in "project2" subdirectory and so forth.
Project1. (Due on 9/Jun./97 1:00pm)
Problem Statement
A Voltage signal was sampled with sampling frequency of 100Hz. Find the frequency components of the signal and their peak values. Be sure to include all the units on your data (time, volt).
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1. How to load the data file in Matlab?
Click here to down load the data file (project1.mat)
You can load the data file using "load" command in Matlab. For more information about "load" command, type "help load". The data file is in MAT-file format. After you load the file, type "whos" command to verify the operation. You'll see output like this:
?whos
Name Size Elements Bytes Density Complex
x 1 by 254 254 2032 Full No
2. How to save your Matlab procedure in a file?
In you project report, you should include all your Matlab commands used. You can save all the commands and outputs in a file. Use "diary" command. The following are more information about the "diary" command.
?help diary
DIARY Save the text of a MATLAB session.
DIARY file_name causes a copy of all subsequent terminal input
and most of the resulting output to be written on the named
file. DIARY OFF suspends it. DIARY ON turns it back on.
DIARY, by itself, toggles the diary state.You also have to describe in detail each command you used.
3. How to save a graph to a file?
You have two options to get your graph files.
1. You can copy the graph and paste it to a word processor. Use Edit menu in Figure window. I recommend you to use Windows metafile as your copy option.
2. You can use "print" command to save your plot to a file. You can set various type options like postscript file or HPGL files. After you save a figure to a file, you can import it to your word processor. For more information type "help print"
Project2. (Due on 16/Jun./97 3:00pm)
Problem Statement
Produce the following voltage signal was sampled with sampling frequency of 100Hz.
y = cos(40pt) + cos(42pt + 2)
Plot the time domain and frequency domain signal for N = 64, 128, 256 and find the calculated frequency values. Compare each result and discuss any differences. Again, be sure to include all the units on your data and plots (time, volt).