Reports.Triangulation History

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Changed lines 85-87 from:
long smoothValue2 = 0;
long smoothValue3 = 0;
*/
to:
long smoothValue2 = 0;
long smoothValue3 = 0;
*/
Changed lines 89-93 from:
pinMode(ledPin, OUTPUT); // declare the ledPin as an OUTPUT
pinMode(superSnooper, INPUT); // reads analog value for speaker
pinMode(superSnooper2, INPUT);
pinMode(superSnooper3, INPUT);
Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
to:
pinMode(ledPin, OUTPUT); // declare the ledPin as an OUTPUT
pinMode(superSnooper, INPUT); // reads analog value for speaker
pinMode(superSnooper2, INPUT);
pinMode(superSnooper3, INPUT);
Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
Changed lines 96-114 from:
digitalWrite(ledPin, HIGH); // sets the LED off
val = analogRead(superSnooper/4); // read the value from the sensor
val2 = analogRead(superSnooper2/4);
val3 = analogRead(superSnooper3/4);
Serial.print("A\t"); //
Serial.print(val, DEC); // print as an ASCII-encoded decimal
Serial.print(10, BYTE);// terminating character
Serial.print("B\t");
Serial.print(val2, DEC);
Serial.print(10, BYTE);
Serial.print("C\t");
Serial.print(val3, DEC);
Serial.print(10, BYTE);
//delay(20);
delay(10);
smoothValue = 0;
for(int i = 0; i < 10; i++){
smoothValue += analogRead(superSnooper);
//delayMillisecond()
to:
digitalWrite(ledPin, HIGH); // sets the LED off
val = analogRead(superSnooper/4); // read the value from the sensor
val2 = analogRead(superSnooper2/4);
val3 = analogRead(superSnooper3/4);
Serial.print("A\t"); //
Serial.print(val, DEC); // print as an ASCII-encoded decimal
Serial.print(10, BYTE);// terminating character
Serial.print("B\t");
Serial.print(val2, DEC);
Serial.print(10, BYTE);
Serial.print("C\t");
Serial.print(val3, DEC);
Serial.print(10, BYTE);
//delay(20);
delay(10);
smoothValue = 0;
for(int i = 0; i < 10; i++){
smoothValue += analogRead(superSnooper);
//delayMillisecond()
}
smoothValue2 = 0;
for(int i = 0; i < 10; i++){
smoothValue2 += analogRead(superSnooper2);
//delayMillisecond()
}
smoothValue3 = 0;
for(int i = 0; i < 10; i++){
smoothValue3 += analogRead(superSnooper3);
//delayMillisecond()
}
smoothValue = smoothValue/10;
smoothValue2 = smoothValue2/10;
smoothValue3 = smoothValue3/10;
Changed lines 130-143 from:
smoothValue2 = 0;
for(int i = 0; i < 10; i++){
smoothValue2 += analogRead(superSnooper2);
//delayMillisecond()
}
smoothValue3 = 0;
for(int i = 0; i < 10; i++){
smoothValue3 += analogRead(superSnooper3);
//delayMillisecond()
}
smoothValue = smoothValue/10;
smoothValue2 = smoothValue2/10;
smoothValue3 = smoothValue3/10;
}
to:
Changed lines 75-76 from:
[@int superSnooper = 0; // select the input pin for the Super Snooper
to:
(:source lang="arduino" tabwidth=4:)
int superSnooper = 0; // select the input pin for the Super Snooper
Changed lines 129-130 from:
}@]
to:
}
(:sourceend:)
Changed line 18 from:
I started with one snooper to see if I could read the incoming data... I hooked up the speaker out wires, scratched the surface of the mic, and heard the response through the a speaker from an answering machine. I used the oscilloscope to check the signal as well.
to:
I started with one snooper to see if I could read the incoming data. I hooked up the speaker out wires, scratched the surface of the mic, and heard the response through the a speaker from an answering machine. I used the oscilloscope to check the signal as well.
November 24, 2012, at 12:10 AM by rm1764 - added new image urls
Added lines 16-17:
http://i.imgur.com/AJMu0.jpg
Added lines 20-21:
http://i.imgur.com/eZ3Fz.jpg
Added lines 28-29:
http://i.imgur.com/THMEd.png
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http://i.imgur.com/KIknq.png
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http://i.imgur.com/IPkm0.png
Added lines 69-70:
http://i.imgur.com/PLZcd.jpg
Changed line 140 from:
[[http://www.sdss.jhu.edu/~tamas/bolts/locator.html | 3D Acoustic Source Localization]] and [[http://www.abe.msstate.edu/Undergraduate/senior_design/2005pdf/FirstSemesterChrisHall.pdf | Sound Triangulation (pdf)]]
to:
[[http://www.sdss.jhu.edu/~tamas/bolts/locator.html | 3D Acoustic Source Localization]] and [[http://www.abe.msstate.edu/Undergraduate/senior_design/2005pdf/FirstSemesterChrisHall.pdf | Sound Triangulation (pdf)]]
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(R0_x, R0_y) = coordinates of snooper 1
to:
[@(R0_x, R0_y) = coordinates of snooper 1
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S = location of clave sound
to:
S = location of clave sound@]
Changed lines 45-47 from:
P = S (average of clave reading)

A: (Px R0_x)^2 + (Py R0_y)^2 = D0^2
to:
P = S (average of clave reading)

[@A:
(Px R0_x)^2 + (Py R0_y)^2 = D0^2
Changed lines 50-51 from:
C: (Px R2_x)^2 + (Py R2_y)^2 = D2^2
to:
C: (Px R2_x)^2 + (Py R2_y)^2 = D2^2@]
Changed lines 54-56 from:
A B: a*Px + b*Py = e
B - C: c*Px + d*Py = f
to:
[@A B: a*Px + b*Py = e
B - C: c*Px + d*Py = f@]
Added line 58:
Changed lines 5-6 from:
This report documents the use of three microphones as directional sensors. Triangulation is the process by which the location of a sound can be determined by measuring the distance or direction of the received signal from 3 different points. Triangulation is used for many purposes, including surveying, navigation, metrology, astrometry (interplanetary triangulation), binocular vision and gun direction of weapons. Using three [[http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=1512043 | Super Snooper]] Big Ear Audio Amplifiers placed in 3 separate locations on an object, I will try to determine the location of a sound emitting from somewhere in a room.
to:
This report documents the use of three microphones as directional sensors. Triangulation is the process by which the location of a sound can be determined by measuring the distance or direction of the received signal from 3 different points. Triangulation is used for many purposes, including surveying, navigation, metrology, astrometry (interplanetary triangulation), binocular vision and gun direction of weapons. Using three [[http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=1512043 | Super Snooper Big Ear Audio Amplifiers]] placed in 3 separate locations on an object, I will try to determine the location of a sound emitting from somewhere in a room.
Added line 30:
Changed lines 33-40 from:
(R0_x, R0_y) = coordinates of snooper 1
(R1_x, R1_y) = coordinates of snooper 2
(R2_x, R2_y) = coordinates of snooper 3
D0 = distance of sound source to snooper 1
D1 = distance of sound source to snooper 2
D2 = distance of sound source to snooper 3
S = location of clave sound
to:
(R0_x, R0_y) = coordinates of snooper 1
(R1_x, R1_y) = coordinates of snooper 2
(R2_x, R2_y) = coordinates of snooper 3
D0 = distance of sound source to snooper 1
D1 = distance of sound source to snooper 2
D2 = distance of sound source to snooper 3
S = location of clave sound
Changed lines 44-45 from:
P = S (average of clave reading)
to:
P = S (average of clave reading)
Changed lines 117-118 from:
[[http://itp.nyu.edu/~rm1764/2007/04/arduino_code_for_triangulation.html | Arduino Code]]
to:
Deleted line 125:
November 23, 2012, at 11:52 PM by rm1764 - removed broken links, added Arduino code inline
Changed lines 7-21 from:
http://www.jameco.com/Jameco/Products/ProdImag/151204.jpg


Super Snooper parts list:


http://itp.nyu.edu/~rm1764/media/snooper_parts.png


Schematic:


http://itp.nyu.edu/~rm1764/media/snooper_schem.png
to:
------

Process
Deleted lines 13-15:
http://itp.nyu.edu/~rm1764/media/supersnooperparts.jpg
Changed lines 16-27 from:
The finished SuperSnoopers:

http://itp.nyu.edu/~rm1764/media/finishedsnoopers.jpg

I started with one snooper to see if I could read the incoming
data... I hooked up the speaker out wires, scratched the surface of the mic, and heard the response through the a speaker from an answering machine.

http://itp.nyu.edu/~rm1764/media/snoopwithspeaker.jpg

I used the oscilloscope to check the signal as well.

http://itp.nyu.edu/~rm1764/media/oscillo.jpg
to:
I started with one snooper to see if I could read the incoming data... I hooked up the speaker out wires, scratched the surface of the mic, and heard the response through the a speaker from an answering machine. I used the oscilloscope to check the signal as well.
Changed lines 23-25 from:
http://itp.nyu.edu/~rm1764/media/snooperplan.png
to:
Deleted lines 25-26:
http://itp.nyu.edu/~rm1764/media/snooper_datalog.png
Changed lines 29-36 from:
2. In the event that the snoopers are reading adequate data, you can use the distance formula to triangulate the sound emitted and subsequently find its location:

http://itp
.nyu.edu/~rm1764/media/distancce_formula.png

3.
Diagram of triangulation scenario:

http://itp.nyu.edu/~rm1764/media/triang_scenario.png
to:
2. In the event that the snoopers are reading adequate data, you can use the distance formula to triangulate the sound emitted and subsequently find its location
3. Diagram triangulation scenario
Changed lines 54-55 from:
6. Use [[http://www.purplemath.com/modules/cramers.htm | Cramer's Rule]] to solve the two equations:
to:
6. Use [[http://www.purplemath.com/modules/cramers.htm | Cramer's Rule]] to solve the two equations
7. Px and Py will give you the location of the clave sound, and triangulation of sound is accomplished.
Changed lines 57-60 from:
http://itp.nyu.edu/~rm1764/media/cramer.jpg

7. Px and Py will give you the location of the clave sound, and triangulation of sound is accomplished.
to:
------
Arduino Code For Triangulation Report

[@int superSnooper = 0; // select the input pin for the Super Snooper
int superSnooper2 = 1;
int superSnooper3 = 2;
int ledPin = 13; // select the pin for the LED
int val = 0; // variable to store the value coming from the sensor
int val2 = 0;
int val3 = 0;
/*long smoothValue = 0;// to smoothen out analog value
long smoothValue2 = 0;
long smoothValue3 = 0;
*/
void setup() {
pinMode(ledPin, OUTPUT); // declare the ledPin as an OUTPUT
pinMode(superSnooper, INPUT); // reads analog value for speaker
pinMode(superSnooper2, INPUT);
pinMode(superSnooper3, INPUT);
Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
}
void loop() {
digitalWrite(ledPin, HIGH); // sets the LED off
val = analogRead(superSnooper/4); // read the value from the sensor
val2 = analogRead(superSnooper2/4);
val3 = analogRead(superSnooper3/4);
Serial.print("A\t"); //
Serial.print(val, DEC); // print as an ASCII-encoded decimal
Serial.print(10, BYTE);// terminating character
Serial.print("B\t");
Serial.print(val2, DEC);
Serial.print(10, BYTE);
Serial.print("C\t");
Serial.print(val3, DEC);
Serial.print(10, BYTE);
//delay(20);
delay(10);
smoothValue = 0;
for(int i = 0; i < 10; i++){
smoothValue += analogRead(superSnooper);
//delayMillisecond()
}
smoothValue2 = 0;
for(int i = 0; i < 10; i++){
smoothValue2 += analogRead(superSnooper2);
//delayMillisecond()
}
smoothValue3 = 0;
for(int i = 0; i < 10; i++){
smoothValue3 += analogRead(superSnooper3);
//delayMillisecond()
}
smoothValue = smoothValue/10;
smoothValue2 = smoothValue2/10;
smoothValue3 = smoothValue3/10;
}@]
April 11, 2007, at 06:26 PM by Rucyl Mills -
Added lines 93-94:
------
April 11, 2007, at 06:25 PM by Rucyl Mills -
Changed lines 1-2 from:
'+Triangulation with Sound - Using Microphones as Directional Sensors+'
to:
'+Triangulation of Sound - Using Microphones as Directional Sensors+'
April 11, 2007, at 06:24 PM by Rucyl Mills -
April 11, 2007, at 06:24 PM by Rucyl Mills -
Changed lines 27-28 from:
The soldering went smoothly until it was time to add the microphones. It was difficult to strip the casing from the wires without cutting the wires, and a couple times the wires came unattached to the microphone. I had to re-solder the wires to the mics. Fortunately, I had an extra SuperSnooper in case of mistakes. If one of the Snoopers doesn't work, I have a backup. I'm also thinking of switching out the microphones for better quality ones if the readings are bunk.
to:
The soldering went smoothly until it was time to add the microphones. It was difficult to strip the casing from the wires without cutting the wires, and a couple times the wires came unattached to the microphone. I had to re-solder the wires to the mics. Fortunately, I had an extra SuperSnooper in case of mistakes. If one of the Snoopers doesn't work, I have a backup.
Changed lines 48-49 from:
I had a friend stand in the middle of the triangle and strike the claves once, count to 5, strike again, etc. I used Tom Igoe's Datalogger Multi code to view the incoming data, and all three of the readings from the snoopers looked the same, even with the smoothing value function I had added to the Arduino code. The snoopers were unable to pick up the clave noise, and had too much noise in general to be effective, and an accurate distance to signal ratio is necessary to triangulate. The three different colors in the diagram each represent a unique snooper signal, but they did not read unique data. I suggest swapping the snooper mics for a higher quality microphone to effectively complete the experiment.
to:

I taped out the area in my living room, and had a friend stand in the middle of the triangle and strike the claves once, count to 5, strike again, etc. I used Tom Igoe's Datalogger Multi code to view the incoming data, and all three of the readings from the snoopers looked the same, even with the smoothing value function I had added to the Arduino code. The snoopers were unable to pick up the clave noise, and had too much noise in general to be effective, and an accurate distance to signal ratio is necessary to triangulate. The three different colors in the diagram each represent a unique snooper signal, but they did not read unique data. I suggest swapping the snooper mics for a higher quality microphone to effectively complete the experiment.
Changed lines 102-104 from:
->[[http://www.sdss.jhu.edu/~tamas/bolts/locator.html | 3D Acoustic Source Localization]]
->Sound Triangulation [[http://www.abe.msstate.edu/Undergraduate/senior_design/2005pdf/FirstSemesterChrisHall.pdf | (pdf)]]
to:
[[http://www.sdss.jhu.edu/~tamas/bolts/locator.html | 3D Acoustic Source Localization]] and [[http://www.abe.msstate.edu/Undergraduate/senior_design/2005pdf/FirstSemesterChrisHall.pdf | Sound Triangulation (pdf)]]
April 11, 2007, at 06:21 PM by Rucyl Mills -
April 11, 2007, at 06:21 PM by Rucyl Mills -
Changed lines 48-49 from:
I had a friend stand in the middle of the triangle and strike the claves once, count to 5, strike again, etc. I used Tom Igoe's Datalogger Multi code to view the incoming data, and all three of the readings from the snoopers looked the same, even with the smoothing value function I had added to the Arduino code. The snoopers were unable to pick up the clave noise, and had too much noise in general to be effective, and an accurate distance to signal ratio is necessary to triangulate. The three different colors in the diagram each represent a unique snooper signal, but they did not read unique data.
to:
I had a friend stand in the middle of the triangle and strike the claves once, count to 5, strike again, etc. I used Tom Igoe's Datalogger Multi code to view the incoming data, and all three of the readings from the snoopers looked the same, even with the smoothing value function I had added to the Arduino code. The snoopers were unable to pick up the clave noise, and had too much noise in general to be effective, and an accurate distance to signal ratio is necessary to triangulate. The three different colors in the diagram each represent a unique snooper signal, but they did not read unique data. I suggest swapping the snooper mics for a higher quality microphone to effectively complete the experiment.
Changed lines 98-100 from:
Triangulation Equation adapted from this Bluetooth Triangulation report:
->
[[http://www.ece.ucdavis.edu/~chuah/classes/eec173B/eec173b-s05/students/BluetoothTri_ppt.pdf | (pdf)]]
to:
Triangulation Equation adapted from this Bluetooth Triangulation report: [[http://www.ece.ucdavis.edu/~chuah/classes/eec173B/eec173b-s05/students/BluetoothTri_ppt.pdf | (pdf)]]
Deleted line 101:
April 11, 2007, at 06:18 PM by Rucyl Mills -
Changed lines 22-23 from:
to:
The first step was to assemble the SuperSnoopers. I assembled the parts into piles and labeled them with their part numbers so I could assemble them quickly without having to look up the reference numbers.

http://itp.nyu.edu/~rm1764/media/supersnooperparts.jpg


The soldering went smoothly until it was time to add the microphones. It was difficult to strip the casing from the wires without cutting the wires, and a couple times the wires came unattached to the microphone. I had to re-solder the wires to the mics. Fortunately, I had an extra SuperSnooper in case of mistakes. If one of the Snoopers doesn't work, I have a backup. I'm also thinking of switching out the microphones for better quality ones if the readings are bunk.

The finished SuperSnoopers:

http://itp.nyu.edu/~rm1764/media/finishedsnoopers.jpg

I started with one snooper to see if I could read the incoming data... I hooked up the speaker out wires, scratched the surface of the mic, and heard the response through the a speaker from an answering machine.

http://itp.nyu.edu/~rm1764/media/snoopwithspeaker.jpg

I used the oscilloscope to check the signal as well.

http://itp.nyu.edu/~rm1764/media/oscillo.jpg

The values were jumping all over the place, so I added a smoothing function to the code and a 10k resistor, and then the values smoothed out a bit, and jumped nicely when a sound was made. Room noise may still be a problem.

When I tested all four of the snoopers, one stopped working, and the other three had two completely different volume input levels. Then one of the three I had left stopped working as well, I think I soldered too close to the microphone head. The problem turned out to be a bad battery, so I still had three snoopers to work with, even with the one casualty.

The plan was to place the snoopers in a triangle two feet from each other, hit the claves in the center, then use the incoming data to determine the exact position of the noise.
http://itp.nyu.edu/~rm1764/media/snooperplan.png

I had a friend stand in the middle of the triangle and strike the claves once, count to 5, strike again, etc. I used Tom Igoe's Datalogger Multi code to view the incoming data, and all three of the readings from the snoopers looked the same, even with the smoothing value function I had added to the Arduino code. The snoopers were unable to pick up the clave noise, and had too much noise in general to be effective, and an accurate distance to signal ratio is necessary to triangulate. The three different colors in the diagram each represent a unique snooper signal, but they did not read unique data.

http://itp.nyu.edu/~rm1764/media/snooper_datalog.png

The appropriate process for triangulation of sound would be:

1. Find the average of the readings made by the clave sound
2. In the event that the snoopers are reading adequate data, you can use the distance formula to triangulate the sound emitted and subsequently find its location:

http://itp.nyu.edu/~rm1764/media/distancce_formula.png

3. Diagram of triangulation scenario:

http://itp.nyu.edu/~rm1764/media/triang_scenario.png

(R0_x, R0_y) = coordinates of snooper 1
(R1_x, R1_y) = coordinates of snooper 2
(R2_x, R2_y) = coordinates of snooper 3
D0 = distance of sound source to snooper 1
D1 = distance of sound source to snooper 2
D2 = distance of sound source to snooper 3
S = location of clave sound

4. Use distance formula to create 3 equations:

KEY: ^2 = to the 2nd power
P = S (average of clave reading)

A: (Px R0_x)^2 + (Py R0_y)^2 = D0^2
B: (Px R1_x)^2 + (Py R1_y)^2 = D1^2
C: (Px R2_x)^2 + (Py R2_y)^2 = D2^2

5. Then reduce to two equations where a, b, c, d, e are constants:

A B: a*Px + b*Py = e
B - C: c*Px + d*Py = f

6. Use [[http://www.purplemath.com/modules/cramers.htm | Cramer's Rule]] to solve the two equations:

http://itp.nyu.edu/~rm1764/media/cramer.jpg

7. Px and Py will give you the location of the clave sound, and triangulation of sound is accomplished.


[[http://itp.nyu.edu/~rm1764/2007/04/arduino_code_for_triangulation.html | Arduino Code]]

[[http://itp.nyu.edu/physcomp/sensors/Code/DataloggerMulti | Processing Code]]

[[http://www.purplemath.com/modules/dstfrmq.htm | Distance Formula Calculator]]

Triangulation Equation adapted from this Bluetooth Triangulation report:
->[[http://www.ece.ucdavis.edu/~chuah/classes/eec173B/eec173b-s05/students/BluetoothTri_ppt.pdf | (pdf)]]

Successful sound triangulation reports:
->[[http://www.sdss.jhu.edu/~tamas/bolts/locator.html | 3D Acoustic Source Localization]]

->Sound Triangulation [[http://www.abe.msstate.edu/Undergraduate/senior_design/2005pdf/FirstSemesterChrisHall.pdf | (pdf)]]
April 11, 2007, at 06:06 PM by Rucyl Mills -
Changed lines 5-7 from:
To add to the acoustic sensor reports, I will use three microphones to study the use of microphones as directional sensors. Triangulation is the process by which the location of a sound can be determined by measuring the distance or direction of the received signal from 3 different points. Triangulation is used for many purposes, including surveying, navigation, metrology, astrometry (interplanetary triangulation), binocular vision and gun direction of weapons. Using three [[http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=1512043 | Super Snooper]] Big Ear Audio Amplifiers placed in 3 separate locations on an object, I will try to determine the location of a sound emitting from somewhere in a room.
to:
This report documents the use of three microphones as directional sensors. Triangulation is the process by which the location of a sound can be determined by measuring the distance or direction of the received signal from 3 different points. Triangulation is used for many purposes, including surveying, navigation, metrology, astrometry (interplanetary triangulation), binocular vision and gun direction of weapons. Using three [[http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=1512043 | Super Snooper]] Big Ear Audio Amplifiers placed in 3 separate locations on an object, I will try to determine the location of a sound emitting from somewhere in a room.
Changed lines 23-32 from:
Examples of triangulation research methods:

[[http://adsabs.harvard.edu/abs/1996MeScT...7.1755C | Projectile-Impact-Location Determination: An Acoustic Triangulation Method]]

[[http://elibrary.unm.edu/sora/Wilson/v076n03/p0292-p0294.html | A Sound-Triangulation Method for Counting Barred Owls]]

[[http://72.14.209.104/search?q=cache:uSS8ePaI4zAJ:personal.ie.cuhk.edu.hk/~kwwei/FYP/keyboard_acoustic_attack/Fiona--ERG4920CM.pdf+Keyboard+Acoustic+Triangulation+Attack&hl=en&ct=clnk&cd=1&gl=us&client=firefox-a | Keyboard Acoustic Triangulation Attack]]

[[www.abe.msstate.edu/Undergraduate/senior_design/2005pdf/FirstSemesterChrisHall.pdf | Sound Triangulation]]
to:
Changed lines 5-7 from:
To add to the acoustic sensor reports, I will use three microphones to study the use of microphones as directional sensors. Triangulation is the process by which the location of a sound can be determined by measuring the distance or direction of the received signal from 3 different points. Triangulation is used for many purposes, including surveying, navigation, metrology, astrometry (interplanetary triangulation), binocular vision and gun direction of weapons. Using 3 Super Snooper Big Ear Audio Amplifiers placed in 3 separate locations on an object, I will try to determine the location of a sound emitting from somewhere in a room.
to:
To add to the acoustic sensor reports, I will use three microphones to study the use of microphones as directional sensors. Triangulation is the process by which the location of a sound can be determined by measuring the distance or direction of the received signal from 3 different points. Triangulation is used for many purposes, including surveying, navigation, metrology, astrometry (interplanetary triangulation), binocular vision and gun direction of weapons. Using three [[http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=1512043 | Super Snooper]] Big Ear Audio Amplifiers placed in 3 separate locations on an object, I will try to determine the location of a sound emitting from somewhere in a room.
Changed lines 1-3 from:
!! Triangulation with Sound - Using Microphones as Directional Sensors
to:
'+Triangulation with Sound - Using Microphones as Directional Sensors+'

----
Changed lines 4-15 from:
To add to the acoustic sensor reports, I will use three microphones to study the use of microphones
as directional sensors. Triangulation is the process by which the location of a sound can be
determined by measuring the distance or direction of the received signal from 3 different points.
Triangulation is used for many purposes, including surveying, navigation, metrology, astrometry
(interplanetary triangulation), binocular vision and gun direction of weapons.



Using
3 Super Snooper Big Ear Audio Amplifiers placed in 3 separate locations on an object,
I will try to determine the location of a sound emitting from somewhere in a room.
to:
To add to the acoustic sensor reports, I will use three microphones to study the use of microphones as directional sensors. Triangulation is the process by which the location of a sound can be determined by measuring the distance or direction of the received signal from 3 different points. Triangulation is used for many purposes, including surveying, navigation, metrology, astrometry (interplanetary triangulation), binocular vision and gun direction of weapons. Using 3 Super Snooper Big Ear Audio Amplifiers placed in 3 separate locations on an object, I will try to determine the location of a sound emitting from somewhere in a room.
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To add to the acoustic sensor reports, I will use three microphones to study the use of microphones as directional sensors. Triangulation is the process by which the location of a sound can be determined by measuring the distance or direction of the received signal from 3 different points. Triangulation is used for many purposes, including surveying, navigation, metrology, astrometry (interplanetary triangulation), binocular vision and gun direction of weapons.


Using 3 Super Snooper Big Ear Audio Amplifiers placed in 3 separate locations on an object, I will try to determine the location of a sound emitting from somewhere in a room.
to:
To add to the acoustic sensor reports, I will use three microphones to study the use of microphones
as directional sensors. Triangulation is the process by which the location of a sound can be
determined by measuring the distance or direction of the received signal from 3 different points.
Triangulation is used for many purposes, including surveying, navigation, metrology, astrometry
(interplanetary triangulation), binocular vision and gun direction of weapons.



Using 3 Super Snooper Big Ear Audio Amplifiers placed in 3 separate locations on an object,
I will try to determine the location of a sound emitting from somewhere in a room.
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http://adsabs.harvard.edu/abs/1996MeScT...7.1755C | Projectile-Impact-Location Determination: An Acoustic Triangulation Method

http://elibrary.unm.edu/sora/Wilson/v076n03/p0292-p0294.html | A Sound-Triangulation Method for Counting Barred Owls.

http://72.14.209.104/search?q=cache:uSS8ePaI4zAJ:personal.ie.cuhk.edu.hk/~kwwei/FYP/keyboard_acoustic_attack/Fiona--ERG4920CM.pdf+Keyboard+Acoustic+Triangulation+Attack&hl=en&ct=clnk&cd=1&gl=us&client=firefox-a | Keyboard Acoustic Triangulation Attack

www.abe.msstate.edu/Undergraduate/senior_design/2005pdf/FirstSemesterChrisHall.pdf | Sound Triangulation
to:
[[http://adsabs.harvard.edu/abs/1996MeScT...7.1755C | Projectile-Impact-Location Determination: An Acoustic Triangulation Method]]

[[
http://elibrary.unm.edu/sora/Wilson/v076n03/p0292-p0294.html | A Sound-Triangulation Method for Counting Barred Owls]]

[[
http://72.14.209.104/search?q=cache:uSS8ePaI4zAJ:personal.ie.cuhk.edu.hk/~kwwei/FYP/keyboard_acoustic_attack/Fiona--ERG4920CM.pdf+Keyboard+Acoustic+Triangulation+Attack&hl=en&ct=clnk&cd=1&gl=us&client=firefox-a | Keyboard Acoustic Triangulation Attack]]

[[
www.abe.msstate.edu/Undergraduate/senior_design/2005pdf/FirstSemesterChrisHall.pdf | Sound Triangulation]]
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!! Triangulation with Sound - Using Microphones as Directional Sensors


To add to the acoustic sensor reports, I will use three microphones to study the use of microphones as directional sensors. Triangulation is the process by which the location of a sound can be determined by measuring the distance or direction of the received signal from 3 different points. Triangulation is used for many purposes, including surveying, navigation, metrology, astrometry (interplanetary triangulation), binocular vision and gun direction of weapons.


Using 3 Super Snooper Big Ear Audio Amplifiers placed in 3 separate locations on an object, I will try to determine the location of a sound emitting from somewhere in a room.

http://www.jameco.com/Jameco/Products/ProdImag/151204.jpg

Super Snooper parts list:


Examples of triangulation research methods:

http://adsabs.harvard.edu/abs/1996MeScT...7.1755C | Projectile-Impact-Location Determination: An Acoustic Triangulation Method

http://elibrary.unm.edu/sora/Wilson/v076n03/p0292-p0294.html | A Sound-Triangulation Method for Counting Barred Owls.

http://72.14.209.104/search?q=cache:uSS8ePaI4zAJ:personal.ie.cuhk.edu.hk/~kwwei/FYP/keyboard_acoustic_attack/Fiona--ERG4920CM.pdf+Keyboard+Acoustic+Triangulation+Attack&hl=en&ct=clnk&cd=1&gl=us&client=firefox-a | Keyboard Acoustic Triangulation Attack

www.abe.msstate.edu/Undergraduate/senior_design/2005pdf/FirstSemesterChrisHall.pdf | Sound Triangulation