Logout
Türkçe
Türkçe
Search
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
GPU accelerated radio wave propagation modeling using ray tracing
Download
index.pdf
Date
2014
Author
Zubaroğlu, Alaettin
Metadata
Show full item record
Item Usage Stats
99
views
101
downloads
Cite This
Radar producers, which are mostly in defense industry, need radar environment simulator to test their products during the development. Such a simulator helps them to be able to get rid of costly field tests. For developing a radar environment simulator, radio wave propagation should be modeled. However, this is a computationally expensive and time consuming process. Improving the performance of propagation modeling contributes to the radar development work. Ray tracing is one of the several electromagnetic wave propagation techniques. It enables calculation of total range, delay and power of radio waves on each point of the field. In this study, we have developed a radio wave propagation modeling application using a parallel implementation of the ray tracing method. Reflection, refraction and free space path loss properties of radio waves are implemented. Predefined atmosphere types that affect the refraction and surface types that affect the reflection are included for user selection. Moreover, the user has the chance of defining special atmosphere and surface types. Our application works on two-dimensional (2D) maps. It also has the ability of converting three-dimensional (3D) maps to 2D slices and working on them. We have developed and accelerated the application using GPU computing and parallel programming concepts. We have run the proposed method sequential and parallel on CPU and parallel on GPU. We have compared and analyzed time measurements of the application on different domains. We have achieved up to 18.14 speedup values between high specification CPU and GPU cards within the scope of this thesis.
Subject Keywords
Ray tracing algorithms.
,
Graphics processing units.
,
Wave propagation.
,
Radar.
,
Radar simulators.
URI
http://etd.lib.metu.edu.tr/upload/12617739/index.pdf
https://hdl.handle.net/11511/24003
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
GPU based infrared signature modeling and scene simulation /
Kavak, Çağlar; Akar, Gözde; Akyüz, Ahmet Oğuz; Department of Electrical and Electronics Engineering (2014)
The need of a fast and high fidelity scene simulation system is important for the development of modern infrared (IR) imaging systems. The performance testing of these systems is expensive and also depends on environment conditions. However, computer based systems can provide a cost effective alternative to field trials. Ray tracing provides physical accuracy and photo realism for scene generation. However, it has computationally intensive nature and conventionally used for non-real time applications. The d...
GPS based altitude control of an unmanned air vehicle using digital terrain elevation data
Ataç, Selçuk; Platin, Bülent Emre; Department of Mechanical Engineering (2006)
In this thesis, an unmanned air vehicle (UAV) is used to develop a prototype base test platform for flight testing of new control algorithms and avionics for advanced UAV system development applications. A control system that holds the UAV at a fixed altitude above the ground is designed and flight tested. Only the longitudinal motion of the UAV is considered during the controller design, hence its lateral motions are controlled manually by a remote control unit from the ground. UAV’s altitude with respect ...
Radar emitter emulation for research and experimental purposes.
Çelebi, M. Bahadır; Koç, Seyit Sencer; Department of Electrical and Electronics Engineering (2009)
The scope of this thesis is to implement radar emitter emulator in a low cost, portablehardware for operational and educational purposes. The model enables pulse train generation in real environment belonging to radar emitters for military exercises. The motivation comes from another research area which is to design effective algorithms for deinterleaving mixed pulse sequences in a suitable hardware and this thesis, covers the work done for implementing a hardware that generates mixed pulse sequences. First...
Spectral and statistical analyses of experimental radar clutter data
Kahyaoğlu, Nazlı Deniz; Yılmaz, Ali Özgür; Department of Electrical and Electronics Engineering (2010)
The performance of radar detection and imaging systems strongly depends on the characteristics of radar clutter. In order to improve the radar signal processing algorithms, successful analysis and modeling of radar clutter are required. For a successful model of radar clutter, both the spectral and statistical characteristics of the clutter should be revealed. Within the scope of this study, an experimental radar data acquisition system is established to analyze radar clutter. The hardware and the data proc...
Numerical and experimental investigation of radar absorbing performance of composite materials with frequency selective surface
Subaşı, Buse; Şimşir, Caner; Department of Metallurgical and Materials Engineering (2022-11-18)
Materials having radar absorbing property show critical importance for space vehicles in defense industry. Among all of the radar absorption mechanisms, use of frequency selective surface has become prominent. In this thesis, composite material having frequency selective surface was developed, manufactured and characterized. Designing of frequency selective surface operating in 8.2 – 12.4 GHz frequency range was conducted by means of finite element analysis method. In addition to radar absorbing performance...
Sorry the service is unavailable at the moment. Please try again later.
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
A. Zubaroğlu, “GPU accelerated radio wave propagation modeling using ray tracing,” M.S. - Master of Science, Middle East Technical University, 2014.
Show/Hide Menu
Hide/Show Apps
Search
Login
You can transmit your request, problems about OpenMETU.