I/Q Data: Plain and Simple

Overview

I/Q signals, or I/Q data, are a fundamental element of RF communications systems.

In RF communications systems, I/Q data often represents signals in the time-domain. You may find this video helpful if any of the following apply to you:

• You want to learn about the basic building blocks of RF communications systems.
• You want to understand more about I/Q data, quadrature amplitude modulation (QAM), or RF upconverters.
• You want to find a real-world use for imaginary numbers, besides AC circuit analysis.

 

View Now (watch) 20 minute(s) webcast Requires: Windows Media Player Please disable your browser's pop-up blocker to view this content.

Reader Comments | Submit a comment

Mistake in your AM Demo?
Hi, I watched your I/Q/ Data video, I suspect there is an error in the AM demo around the 6:30 minute mark in the video. The "Message" window clearly shows the amplitude going from -1 to +1 but the I/Q rectangulat plot only shows the vector going from 0 to 1. This may be because of a baseband shift or something similar but should be explained. Feel free to contact me with your comments. Thanks!
- Dan Gerlach, U.S. Navy. daniel.gerlach@navy.mil - Mar 19, 2013

Excellent demo, Thanks guys
- Avinash Aeron. - Dec 11, 2012

What an excellent explanation. Thanks!
justin.henrie@navy.mil - May 3, 2010

Thanks a lot
- Feb 23, 2010

thanks a lot guys for this great dem
- Jun 28, 2009