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Caller ID: A Project to Reinforce an Understanding of DSP-based Demodulation

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Conference

2005 Annual Conference

Location

Portland, Oregon

Publication Date

June 12, 2005

Start Date

June 12, 2005

End Date

June 15, 2005

ISSN

2153-5965

Conference Session

Issues in Digital Signal Processing

Page Count

8

Page Numbers

10.288.1 - 10.288.8

Permanent URL

https://peer.asee.org/14327

Download Count

126

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Paper Authors

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Michael Morrow

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Thad Welch

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Abstract

This paper discusses one of the most popular projects in our real-time DSP course’s, de- modulating a telephone’s caller ID signal. We will describe the use of a modified telephone coupler to allow students to access the caller ID signal and then discuss a number of the DSP methods and techniques that are required to successfully demodulate, decode, and dis- play the caller ID information. This project has been exceedingly well received by both our undergraduate and graduate students and represents a DSP-based solution to a real world communications problem that every student has seen in use. This project involves almost every aspect of real-time signal processing implementation, but is not so overwhelming in scope that it cannot be completed in a reasonable amount of time.

Wright, C., & Morrow, M., & Welch, T. (2005, June), Caller ID: A Project to Reinforce an Understanding of DSP-based Demodulation Paper presented at 2005 Annual Conference, Portland, Oregon. https://peer.asee.org/14327

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