Daffodil International University

Faculty of Engineering => EEE => Topic started by: Kazi Taufiqur Rahman on November 23, 2015, 11:48:51 PM

Title: Locating a gun with sound waves
Post by: Kazi Taufiqur Rahman on November 23, 2015, 11:48:51 PM

Suppose that the boom of a gun is recorded by three microphones: Let's call them A, B and C. Assume that the three microphones are spaced 386 meters (1,266 feet) apart. That is the distance sound travels through air in one second. The boom reaches microphone A first. One second later it reaches microphone B. One second after that it reaches C. Draw a circle with a radius equal to 386 meters centered on B and a circle with radius twice that distance centered on C. Now draw a circle that goes through the position of microphone A and that also touches the two other circles. The center of this circle is the position of the gun that fired.

Title: Re: Locating a gun with sound waves
Post by: saikat07 on November 20, 2016, 11:30:55 PM

Thanks for sharing