ECE 445S Real-Time Digital Signal Processing Laboratory - Lecture 12

Lecture by Prof. Brian L. Evans

Announcements: Wireless Interference

Lecture

Lecture 12 slides on Channel Impairments in PowerPoint format.
- Part 1
  - Board. Communication systems degrees of freedom in design
  - Demo: Microwave oven interference for Wi-Fi (start at the 0:51 mark)
  - Demo: Light painting Wi-Fi reception strength downtown
  - Notes: Lecture notes by TA Dan Jacobellis (Spring 2023)
- Part 2:
  - Board. Review of Lecture 12 on channel impairments
  - Demo: Stella, Reverb and Delay Explained
  - Board. FIR filter to add a signal and a delayed version of itself
  - Notes: Lecture notes by TA Alice Liu (Spring 2023)
Spring 2014 lecture on Video.

Supplemental Material

Fall 2023 marker board pictures
- Board: Using delay to add echoes to a signal as an audio effect. Each echo has a delay and gain associated with it, in similar way as multiple paths from a transmitter to a receiver would
- Filtering wireless interference
Spring 2023 marker board pictures
- Carrier frequency and bandwidth
- Bandwidth and system time constants
Spring 2022 marker board pictures
Fall 2021 marker board pictures
- sparse wireless channels
- spectrum analyzer measurement options and sweep option
Spring 2021 marker board pictures for
- Part 1: SINR, baseband signals, basestations and related courses
- Part 2: takeaways and phase jitter
Fall 2020 marker board pictures for
- thermal noise and LTI channel models
- phase jitter and transmission bandwidth
- Fall 2020 lecture notes by Prof. Evans and Mr. Jacobellis

Last updated 04/09/24. Send comments to (Mailbox) bevans@ece.utexas.edu