Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
A Comprehensive simulation of factors that affect performance of array based acoustic gunshot localization on helicopters
Download
index.pdf
Date
2016
Author
Yılmaz, Murat
Metadata
Show full item record
Item Usage Stats
207
views
72
downloads
Cite This
Self-defense solutions on current aircraft usually handle advanced weapons while most helicopters down or damaged are known to be attacked from ground using rifles or Rocket-Propelled Grenades (RPG). Although there are ground based localization solutions for Small Arms Fire (SAF) attacks, there are only a few implementations of onboard applications. A simple Acoustic Source Localization (ASL) application employs a microphone array for collecting audio signals, so as to locate sound sources using the measurements from the sound field. The aim of this study is to investigate the possibility of Acoustic Gunshot Localization on a helicopter so as to detect and localize SAF attacks, by simulating the effects of both wave propagation and signal processing parameters for different localization algorithms. Pre-processing and post-processing for each individual algorithm were also proposed considering domain specific issues, such as the effects of helicopter noise, environmental factors (temperature and humidity), gunshot signal characteristics and real life mission requirements.
Subject Keywords
Helicopters.
,
Acoustic localization.
,
Microphone arrays.
,
Signal processing.
URI
http://etd.lib.metu.edu.tr/upload/12619814/index.pdf
https://hdl.handle.net/11511/25491
Collections
Graduate School of Informatics, Thesis
Suggestions
OpenMETU
Core
Investigation of Acoustic Source Localization algorithm performances for Gunshot Localization on helicopters
Yılmaz, Murat; Günel Kılıç, Banu (2016-06-23)
Self-defense solutions on current aircraft usually handle advanced weapons while most helicopters down or damaged are known to be attacked from ground using rifles or Rocket-Propelled Grenades (RPG). Although there are ground based localization solutions for Small Arms Fire (SAF) attacks, there are only a few implementations of onboard applications. A simple Acoustic Source Localization (ASL) application employs a microphone array for collecting audio signals, so as to locate sound sources using the measure...
Short range thrusting projectile tracking
Bilgin, Ozan Özgün; Demirekler, Mübeccel; Department of Electrical and Electronics Engineering (2012)
Short range thrusting projectiles are one of the various threats against armored vehicles and helicopters on the battlefield. Developing a countermeasure for this kind of projectiles is very crucial since they are vast in number and easy to operate on the battlefield. A countermeasure may consist of fire point prediction of the projectile and attack the launcher of it, or it may be the impact point prediction of the projectile and apply a hard-kill counter measure on its way to the ally target. For both of ...
Design and development of a cylinder expansion test setup for determination of equation of state parameters of various explosives
Topkaraoğlu, Emir; Ulaş, Abdullah; Department of Mechanical Engineering (2014)
Explosives are energetic materials which are used for various military or civilian purposes. Several computer programs are used for predicting the behaviour of systems containing explosives. During modeling of various explosives in simulation software, Jones-Wilkins-Lee equation of state is widely used. However, the parameters used in JWL equation of state are not available for some of the explosives in open sources. A method called cylinder expansion test is used in order to determine these parameters. In ...
İnsanız Hava Aracı (İHA) Görüntüleri ile Ortogörüntü Üretiminde Yükseklik ve Kamera Açısının Doğruluğa Etkisinin Araştırılması
Öztürk, Ozan; Bilgilioğlu, Burhan Baha ; Çelik, Mehmet Furkan ; Bilgilioğlu, Süleyman Sefa ; Uluğ, Raşit (2017-12-01)
İnsansız Hava Araçları (İHA) otomatik veya yarı otomatik uçuş prensibine sahip başlangıçta askeri amaçlar için kullanılan motorlu veya motorsuz hava araçlarıdır. Son yıllarda meydana gelen gelişmelerle birlikte İHA’lar, afet yönetimi ve planlama, ormancılık, fotogrametrik değerlendirme, yol ve nehir gözlemleri, arazilerin üç boyutlu (3B) modellerinin üretilmesi gibi birçok ticari ve akademik çalışmalarda yaygın olarak kullanılmaya başlanmıştır. İHA’lara digital kameralarının entegre edilmesi yüksek çözünürl...
Evaluation of Acoustic Gunshot Localization Methods on Helicopters with Environmental Sound Simulations
Yılmaz, Murat; Günel Kılıç, Banu (2022-01-01)
Although there are ground based localization solutions for Small Arms Fire (SAF) attacks, there are only a few implementations of onboard applications. A simple Acoustic Source Localization (ASL) application employs a microphone array for collecting audio signals, so as to locate sound sources using the measurements from the sound field. The aim of this study is to investigate the possibility of Acoustic Gunshot Localization on a helicopter so as to detect and localize SAF attacks, by simulating the effects...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
M. Yılmaz, “A Comprehensive simulation of factors that affect performance of array based acoustic gunshot localization on helicopters,” M.S. - Master of Science, Middle East Technical University, 2016.