Code covered by the BSD License  

Highlights from
Sonar Demo

3.77778

3.8 | 9 ratings Rate this file 37 Downloads (last 30 days) File Size: 7.14 KB File ID: #1731
image thumbnail

Sonar Demo

by

 

22 May 2002 (Updated )

Sonic distance measurement using Windows sound card for data acquisition.

| Watch this File

File Information
Description

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.

Required Products Data Acquisition Toolbox
MATLAB release MATLAB 6.1 (R12.1)
Other requirements Windows sound card, speaker and microphone (preferably with ability to change separation distance).
Tags for This File   Please login to tag files.
Please login to add a comment or rating.
Comments and Ratings (10)
17 Jan 2012 AMITAVA BISWAS  
30 Jun 2008 david via  
06 Jun 2008 deep sing

i tried it by playing a sample wav file..but the execution of sonar_anal file gives the follwing error "Input argument "fig" is undefined". Can u elaborate on ways to execute the sonar demo considering my novice exposure to matlab

18 Oct 2006 Muhammad Shahzad

checking

18 Oct 2006 Muhammad Shahzad

for checking

16 May 2006 magrini antonio  
24 Aug 2005 neila castellanos lozano  
30 Jul 2005 lalit dhingra

ver good

10 Aug 2004 Mohamed Alzebdah

Has a good Accuracy in long distance insted of small distance.Could be improved if the ability of collaboration is added.
But in the overall "Well done" and Thank you.

19 May 2003 Vladimir Molchanov  
Updates
13 Jan 2010

copyright

Contact us