Software Radio Senior Project: Winter 2003

Technical Information

ModulationQPSK
Data Rate24 kbits/sec
Pulse Shapesquare-root raised cosine
50% excess bandwidth
Data Sequence511 bit PN Sequence
Download the Matlab file
containing this bit sequence
Radio Frequency (RF)924 MHz
Differential Encoding

                phase shift
bit sequence     (degrees)    
----------------------------
     00              0
     01            +90
     10            -90
     11            180

Download the Presentation

Performance Examples

Real Data Set

Schedule

DateDescription
6 Feb 2003 Milestone 1: Formal Design Review
This is a 15 minute presentation where you provide a detailed review of your design. Information should include
  • Complete RF front-end design. At a minimum you should demonstrate
    • Filter specifications
    • Analysis of adjacent channel interference, noise, and image rejection levels
    • Knowledge of the external RF environment
    • Hardware parts list
    • Detailed block diagram, schematic, and chassis layout.
  • A Working Matlab Code Demonstration
    • Demonstrate operation on provided data file.
    • DSP loading estimate including count of the number of multiples and adds per second, estimate of the required level of optimization on the DSP processor (amount of parallelization).
    • Identify (in code) data debug test points and what signals should look like (debug tools).
20 Feb 2003 Milestone 2: Hardware and Software Demonstrations
  • RF Front-End Demonstration
    • Demonstrate working RF front-end without antenna, without link budget computation, and without integration with the DSP.
    • Must be built on the metal chassis.
  • DSP Matched Filter Demonstration
    • Connect the I-Q Baseband outputs of the ESG-D Signal Generator to the A/D converter inputs on the TI EVM.
    • Direct the digital matched filter outputs to the D/A converters on the on the TI EVM.
    • Connect the TI EVM D/A converter outputs to the digital oscilloscope for display.
    • The synchronizer loops do not need to be working. But include a fixed phase rotation in your DSP code as a place holder for the carrier phase synchronization PLL.
6 Mar 2003 Milestone 3: DSP Code Demonstration
  • Connect the I-Q Baseband outputs of the ESG-D Signal Generator to the A/D converter inputs on the TI EVM.
  • Direct the digital matched filter outputs to the D/A converters on the on the TI EVM.
  • Connect the TI EVM D/A converter outputs to the digital oscilloscope for display.
  • The AGC and carrier phase synchronization PLL should be working. Design a test to demonstrate that the carrier phase PLL locks and that the AGC is working properly.
27 Mar 2003 Milestone 4: Fully Integrated System Demonstration
  • All DSP functions, including symbol timing recovery should be functioning. Output the downsampled and interpolated matched filter outputs through the TI EVM D/A converters to the digital oscilloscope. What should we see?
  • Demonstrate a fully integrated system: Antenna, RF front-end, and baseband DSP subsystem.
  • Although not required for this milestone, you should make sure your system can communicate with the bit error rate tester.
31 Mar 2003 Final Report, Due 5:00 PM
4 Apr 2003 Senior Project Competitions
  • All senior project competitions will be held in conjunction with Industry Day and the Alumni Reunion. The competition will be in the morning in the Clyde Lounge. We will probably go in between rounds of the robot-soccer competition.
  • Final Oral presentations will be made to the judges (external engineers from industry). This will probably be in the afternoon. Exact time and location to be announced...

Winter 2003 Teams

Pictures

Click on the image to see a full size version.
Team Black Ice prepares for the competition. A fine looking front end!
It's working ... right? The setup. Looks pretty high-tech, doesn't it?
Another fine looking front end.... Scott, Shuyi, Reid, and Ryan are ready to convert the world to follow Saturday's Warriors. All they are missing are their name badges...
David, Jay, Jeff, and Daniel of put on their game faces for Team Fellowship of the Radio. The front-end: all packaged and ready to go.
Let's take a look under the hood.... An efficient use of resources: a combined front end and hamster habitat....
Uh oh, the hamster is gone .... I/Q eye diagram. "My eyes are open...."
The judges: Randy Sylvester of L-3 Communications Communication Systems - West and Doug O'Cull of L-3 Communications Telemetry - East. Jim, Aaron, Bryan, and Mike of Team Aragorn. Says Mike, "Let's quit dinking around with photos and get going!"
Another fine looking front end. BERT: "Old Reliable"
What a constellation! Another constellation...
Bonnie, Ran, Trent, and Laurie of Title IX. Doesn't this make a good CD cover for a rock band?

Created by Michael Rice
mdr@ee.byu.edu
Last modified: Wed Apr 16 16:43:45 2003