GUI-Based DTMF Dual-Tone Multi-Frequency Signal Generation and Detection Demo

Resource Overview

A MATLAB GUI implementation demonstrating DTMF signal generation and detection. The program utilizes Goertzel's algorithm for efficient frequency detection and includes interactive controls for signal parameter adjustment. See the readme file for execution instructions.

Detailed Documentation

This is a demonstration program developed using MATLAB's GUI for DTMF dual-tone multi-frequency signal generation and detection. The implementation features a graphical interface that allows users to generate DTMF tones by combining two specific frequencies from predefined row and column frequency pairs (697Hz, 770Hz, 852Hz, 941Hz for rows and 1209Hz, 1336Hz, 1477Hz for columns). For detection, the program employs the Goertzel algorithm as an efficient alternative to FFT for targeted frequency component analysis, calculating the energy present at each DTMF frequency to identify pressed keys. Through this interactive tool, users can better understand and study the principles of DTMF signal generation and detection mechanisms. Please refer to the readme document for detailed execution methods. We hope this demonstration program proves helpful and meets your requirements for learning telecommunications signaling techniques.