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