Sonar Demo

Versione 1.1.0.1 (7,14 KB) da Robert Bemis
Sonic distance measurement using Windows sound card for data acquisition.
3.6
(11)
10,1K download
Aggiornato 1 set 2016

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In this demo the Windows sound card is used as a data acquisition device. A chirp waveform is played out the speaker and captured by the microphone concurrently. The time delay between pitch and catch indicates separation distance. The time delay is determined using signal processing concepts (cross correlation and Hilbert pre-envelope). A graphical user interface makes operaton simple. This demo illustrates the basic principle; distances are not calibrated for accuracy.

Cita come

Robert Bemis (2024). Sonar Demo (https://www.mathworks.com/matlabcentral/fileexchange/1731-sonar-demo), MATLAB Central File Exchange. Recuperato .

Compatibilità della release di MATLAB
Creato con R12.1
Compatibile con qualsiasi release
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SonarDemo/

Versione Pubblicato Note della release
1.1.0.1

Updated license
1.1.0.0

copyright
1.0.0.0

Made operation more robust on wider range of PC sound cards, microphones and speakers by removing hard coded calibration.