Schedule
Week
Lab Date
Accomplished Tasks
1
10/29/02
  1. Simulated Basic Transistor Amplifier Configuration in PSPICE to Determine Frequency Response Characteristics
  2. Developed own 12AX7 and 6V6GT Tube Models for PSPICE Simulation
2
11/4/02
  1. Simulated Basic Transistor Amplifier Configuration with 12AX7 Triode from 1961 Fender Champ
  2. Simulated Basic Transistor Amplifier Configuration with 6V6GT Pentode from 1961 Fender Champ
  3. Simulated Cascaded Nonlinear Amplifier Transfer Characteristic in MATLAB
  4. Began 1961 Fender Champ PSPICE Schematic Development
3
11/12/02
  1. Resimulated MATLAB Cascaded Amplifier Transfer Characteristic
  2. Resimulated 6V6GT Tube Amplifier Configuration
  3. Completed PSPICE Schematic of 1961 Fender Champ
  4. Located Guitar Note Frequency Range
  5. Collected 16-bit Digital Audio Data of 1961 Fender Champ at Different Frequencies and Different Volumes
4
11/19/02
  1. Completed System Block Diagram
  2. Computed Output Amplitude of Guitar String for Data Analysis
  3. Plotted and Recorded Three Sets of Digital Audio Data with MATLAB from Previous Week
5
11/26/02
  1. Successfully Interfaced External Circuitry to Fender Champ to Measure Output Voltage at Single-Ended Power Stage
  2. Ran Remainder of Simulation Plots in MATLAB from 16-bit Digital Audio Data in Week 3
6
12/2/02
  1. Recorded MATLAB Plots of 16-bit Digital Audio Data
  2. Measured Output of Fender Champ at Single-Ended Power Stage
  3. Searched for Patents and Parts Needed for Guitar Interface to DSP Board
7
1/27/03
  1. Revised Overall System Block Diagrams
  2. Plotted Nonlinear Transfer Characteristics of 1961 Fender Champ at Different Frequencies and Different Volumes
8
2/3/03
  1. Began to Apply Curve Fits to Nonlinear Transfer Characteristic Plots from Previous Week
  2. Collected More 16-bit Digital Audio Data of 1961 Fender Champ at Different Frequencies and Different Volumes
  3. Time Domain, Frequency Domain, and Nonlinear Transfer Characteristic Plots Produced from New Data in MATLAB
9
2/10/03
  1. Continued with Curve Fits for Nonlinear Transfer Characteristic Plots in MATLAB from Week 7 and Week 8
10
2/17/03
  1. Completed Curve Fits for Nonlinear Transfer Characteristic Plots in MATLAB from Week 7 and Week 8
  2. Generated Coefficients for 8 FIR Filters for DSP Tube Amp Model Simulation in MATLAB
  3. Began Assembling MATLAB Simulink Model of DSP-Based Vacuum Tube Amplifier
11
2/24/03
  1. Wrote Program to Simulate DSP Based Tube Amplifier in MATLAB Before Completing the Simulink Model
  2. Researched Cost of MATLAB Texas Instruments CI6000 Embedded Target
12
3/03/03
  1. Corrected FIR Filter Coefficients for DSP Simulation of Amplifier Distortion
  2. Investigated Presence of DC Offset in Nonlinear Transfer Characteristic Curve Fits
13
3/10/03
  1. Improved FIR Filter Bank Performance for DSP Simulation of Amplifier Distortion
14
3/24/03
  1. Improved FIR Filter Bank Performance for DSP Simulation of Amplifier Distortion
  2. Corrected Nonlinear Transfer Characteristic Applications in MATLAB Code Simulation
15
3/31/03
  1. Improved FIR Filter Bank Performance for DSP Simulation of Amplifier Distortion
  2. Added and Improved Nonlinear Transfer Characteristic Applications in MATLAB Code Simulation
16
4/07/03
  1. Investigated Filter Banks' Outputs to Determine Source of High Frequency Components
  2. Tested Output of Filter Banks with Sinusoids Deviating from the Nonlinear Transfer Characteristic Frequency
17
4/14/03
  1. Investigated Effect of Envelope Detector Addition to Parallel FIR Filter Bank Approach
18
4/21/03
  1. Generated Ordered Look-Up Tables for All Nonlinear Transfer Characteristics
  2. Implemented and Simulated 5-stage Subband Coding Approach to the Problem in Simulink
  3. Implemented Parallel FIR Filter Bank Approach in Simulink
  4. Successfully Downloaded Both Approaches to the Texas Instruments TMS320C6711 Board with Embedded Target for the TI C6000TM DSP Feature in MATLAB 6.5
  5. Parallel FIR Filter Bank Approach Will Be Used to Demo at The 2003 Expo
18
4/25/03
  1. Demonstrated Parallel FIR Filter Bank Approach at 2003 Expo
19
4/28/03
  1. Documented TI C6000TM Settings for TMS320C6711 Model Build and Execution
  2. Investigated Capturing Real-Time Data from TMS320C6711 Board with Various Simulink DSP Sinks in MATLAB 6.5 - (Status: Unsuccessful)
20
5/05/03
  1. Senior Project Conference 2003
  2. Final Report Due