EECS 206 Lab, Fall 2002

• Important Notice: Use Internet Explore to download ".mat" files.
• Lab sessions / GSI
• Entire Lab Manual (184 pages)
• Lab manual errata

• Lab 0: MATLAB Tutorial
  • Lab0 student manual
  • Matlab "reference card"
  • file_code.m -- a demonstration function for performing JPEG compression
    
  • sample_function.m -- a monolithic MATLAB function to demonstrate how to do a wide variety of things in MATLAB.

   

• Lab 1: Signal Statistics and Detection I
  • Demo files:
    
  • Lab1 student manual
  • Supplement: approximating signal characteristics using Riemann sums (NEW 2002-9-29!)
  sample_laboratory.doc -- Use this as a formatting guideline or a template for your laboratory assignment
  lab1_sys_demo.m -- A demonstration system for use during lab section
  sig_nosig_demo.dll -- A working demonstration version of sig_nosig.m. (Note that this function only works on Windows systems running MATLAB version 6. It should work on any CAEN PC running Matlab 6.1.)
  • Lab assignment files:
    lab1_data.mat -- Contains two signals for use in this laboratory
    lab1_sys1.m , lab1_sys2.m -- systems for use in Lab #1, Problem #3
    sig_nosig.m -- A "skeleton" function for the signal/no signal detection
    
    
• Lab 2: Correlation and Detection II
  • Demo files:
    energy_demo.m -- demonstration of detection with using energy
    corr_demo.m -- demonstration of detection with correlation
    corr_view.m -- real-time demonstration of running correlation
    lab2_demo.mat -- sample data for corr_view.m
    run_corr_demo.dll -- completed/compiled version of run_corr.
• Lab assignment files:
  code_signal.m -- function that generates code signals for multi-user communication system
  run_corr.m -- "skeleton" function for run_corr, which computes running correlation
  lab2_data.mat -- data files for radar system

 

• Lab 3: Sinusoids and Sinusoidal Correlation
  • Demo files:
    ce_demo.m -- script that generates a 3-D plot of a complex exponential signal
    apc_demo.dll -- completed/compiled version of apc.m
    fape_demo.dll -- completed/compiled version of fape.m
    
  • Lab assignment files:
    apc.m -- "skeleton" function for apc, which implements the "amplitude and phase calculator"
    fape.m -- "skeleton" function for fape, which implements the "frequency, amplitude, and phase estimator"
    lab3_data.mat -- data files for sinusoidal correlation

   

• Lab 4: Fourier Series and the DFT
  • Lab assignment files:
    sinsum.m and sinsum.fig -- Files for the "sum-of-sinusoids" GUI used in Problem #1
    lab4_data.mat -- data files for Lab #4
    fourier_synthesis.m -- function which performs Fourier Series synthesis
    fourier_analysis.m -- function which performs Fourier Series analysis
    fix_melody.m -- incomplete function to remove undesired component in a signal
    melody_check.m -- computes spectrogram for verifying problem #5

   

• Lab 5: Images, Compression, and Coding
  • Demo files:
    eagle.tif -- a demonstration image for compression
    file_code.m -- updated version of file_code, demonstrates several image compression routines
  • Lab assignment files:
    cameraman.tif -- A standard image used for image processing
    display_square.m -- A function used to visualize the image values associated with small portions of an image
    quantize_fcn.m -- A function that implements quantization
    dft_block.m -- The transform portion of a transform encoder
    inverse_dft_block.m -- The inverse transformation portion of a transform decoder
    dft_coder.m -- The entire transform encoder

   

• Lab 6: FIR Filtering and Image Processing
  • Demo files:
    goldhill.tif -- a demonstration image for filtering
    mandrill.tif -- another demonstration image for filtering
  • Lab assignment files:
    lab6_data.mat -- A set of signals for Lab #6
    g_smooth.m -- Produces coefficients for 1-D smoothing filters
    g_smooth2.m -- Produces coefficients for 2-D smoothing filters
    sharpen.m -- Sharpens an image with varying strength
    peppers.tif -- A "noise-free" image
    peppers_noise1.tif -- A noisy version of peppers.tif
    peppers_noise2.tif -- Another noisy version of peppers.tif
    peppers_blur.tif -- A blurred version of peppers.tif

   

• Lab 7:Decoding DTMF: Filters in the Frequency Domain
• Demo files:
  dtmf_sound.wav -- a recording of a "real" DTMF signal
  dtmf_dial_demo.dll -- demonstration version of the DTMF dialer function
• Lab assignment files:
  dtmf_dial.m -- the (incomplete) DTMF dialer function
  dtmf_filt_char.m -- function for characterizing bandpass filters for the DTMF decoder
  dtmf_decode.m -- the (incomplete) DTMF decoder function
  dtmf_attack.m -- function for testing the robustness of the DTMF detector to noise

 

• Lab 8: Classification and Vowel Recognition
• Demo files:
  lab8_example.m -- .m script that generates example figures for the laboratory background
  lab8_example2.m -- .m script that generates more example figures for the laboratory background
  feature_classifier_demo.dll -- completed demo version of the feature classifier
  formant_classifier.dll -- complete vowel classifier (from sound recording to classification) using the formant features
  fbank_classifier.dll -- complete vowel classifier (from sound recording to classification) using the filter bank features
• Lab assignment files:
  lab8_data.mat -- required data for the laboratory assignment
  calc_formants.m -- calculates formant features from an short segment of a vowel signal
  calc_fbank.m -- calculates filter bank features from a short segment of a vowel signal
  feature_classifier.m -- skeleton function for the feature classifier
  confusion_matrix.m -- function used to calculate confusion matrices




• Lab 9: Filter Design, Modeling, and the z-Plane
• Demo files:
  lab9_demo.mat -- Data file for demonstrations in the lab section
  confusion_matrix_demo.dll -- compiled function for computing confusion matrices
  ap_classifier.dll -- complete vowel classifier (from sound recording to classification) using the all-pole features
• Lab assignment files:
  lab9_data.mat -- required data for the laboratory assignment
  show_z2.m -- a function that displays a surface plot of the Z-plane for a given filter
  pole_zero_place3d.fig and pole_zero_place3d.m -- files for Pole-Zero Place 3-D GUI