ECE 445S Real-Time Digital Signal Processing Laboratory - Lecture 13

Announcements

• Spectrum Regulations and Auctions
• Time, frequency, and other duplexing

Lecture

• Lecture 13 slides on Digital Pulse Amplitude Modulation in PowerPoint format.
  • Software Defined Radio Wi-Fi example

• Spring 2023 lecture notes by the TAs: part 1, part 2 and part 3

• Spring 2014 lectures on Video: Part 1 - Part 2

Supplemental Material

• Spring 2025: Board. Pulse Shaping
• Fall 2024 marker board notes
  • Pulse Amplitude Modulation Transmission
  • Wireless Communication System Resources
  • Pulse Width Modulation (in response to a student question)
  • Pulse Shaping FIR Filter Output
  • Connection Between Steepest Descent and IIR Filtering
• Spring 2024 marker board notes
  • Part 1
    • Review of interpolation
    • Bit rate = J f_sym in units of bits/s. J is in bits/symbol and f_sym is in symbols/s.
  • Part 2
    • Bit rate and channel capacity
  • Part 3
    • System tradeoffs for PAM transmission
    • Upsampling followed by pulse shaping
    • In-Lecture Assignment 3
• Fall 2023 marker board notes
  • Part 1:
    • GPS accuracy
    • PAM transmission parameters
    • interpolation example
  • Part 2:
    • Baseband BPSK transmitter
    • Baseband BPSK receiver
    • Matched filter for rectangular pulse
    • Time shift leads to phase shift
    • FIR interpolation vs. polyphase filter bank run-time cmplexity
• Spring 2023 marker board notes
  • Part 1 PAM transmission parameters
  • Part 2 Interpolation pulse shaping
  • Part 2 In-Lecture Assignment #3: Steepest descent stability
  • Part 3 Communication system tradeoffs
  • Part 3 Shannon capacity (after lecture)
• Fall 2022 marker board notes
  • Part 1: PAM transmission and baseband and analog/RF front end processing
  • Part 2: PAM review and pulse shaping
  • Part 3: Cellular and satellite Communications
  • In-Lecture #3 Assignment: Steepest descent choice of step size
• Spring 2022 marker board notes
  • Part 1: bit rate and PAM mapping
  • Part 2: pulse shaping (interpolation), sampling and unlicensed bands and licensed LTE bandwidths,
  • Part 3: PAM transmission bandwidth
• Fall 2021 marker board notes: bit rate, 2-PAM signal, 4-PAM parameters, LTE bandwidths and sampled pulse shape
• Spring 2021 marker board notes
  • Part 1: takeaways, choice of d parameter and interpolation example
  • Part 2: takeaways 1 & 2; degrees of freedom, and filterbank example
• Fall 2020 marker board notes
  • Digital PAM Part 1 (slides 13-3 and 13-4)
  • Fall 2020 lecture notes by Prof. Evans and Mr. Jacobellis: part 1 and part 2
• Spring 2020 marker board notes on upsampling and pulse shaping

Last updated 10/30/25. Send comments to bevans@ece.utexas.edu