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
Chaotic demodulation under interference
Download
index.pdf
Date
2006
Author
Erdem, Özden
Metadata
Show full item record
Item Usage Stats
175
views
49
downloads
Cite This
Chaotically modulated signals are used in various engineering areas such as communication systems, signal processing applications, automatic control systems. Because chaotically modulated signal sequences are broadband and noise-like signals, they are used to carry binary signals especially in secure communication systems. In this thesis, a target tracking problem under interference at chaotic communication systems is investigated. Simulating the chaotic communication system, noise-like signal sequences are generated to carry binary signals. These signal sequences are affected by Gaussian channel noise and interference while passing through the communication channel. At the receiver side, target tracking is performed using Optimum Decoding Based Smoothing Algorithm. The estimation performances of optimum decoding based smoothing algorithm at one dimensional chaotic systems and nonlinear chaotic algorithm map are presented and compared with the performance of the Extended Kalman Filter application.
Subject Keywords
Electrical Engineering.
,
Electronics.
,
Nuclear Engineering.
URI
http://etd.lib.metu.edu.tr/upload/12607690/index.pdf
https://hdl.handle.net/11511/16020
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Estimation of deterministic and stochastic imu error parameters
Ünsal, Derya; Demirbaş, Kerim; Department of Electrical and Electronics Engineering (2012)
Inertial Measurement Units, the main component of a navigation system, are used in several systems today. IMU’s main components, gyroscopes and accelerometers, can be produced at a lower cost and higher quantity. Together with the decrease in the production cost of sensors it is observed that the performances of these sensors are getting worse. In order to improve the performance of an IMU, the error compensation algorithms came into question and several algorithms have been designed. Inertial sensors conta...
Fast intra/inter mode decision for a real-time H.264 streaming system
Alay, Özgü; Akar, Gözde; Department of Electrical and Electronics Engineering (2006)
Video compression is a key technology used in several multimedia applications. Improvements in the compression techniques together with the increasing speed and optimized architecture of the new family processors enable us to use this technology more in real time systems. H.264 (also known as MPEG-4 Part 10 or AVC - Advanced Video Coding), is the latest video coding standard which is noted for achieving very high data compression. While H.264 is superior to its predecessors, it has a very high computational...
Modelling of X-Band electromagnetic wave propagation
Pelgur, Ali; Koç, Seyit Sencer; Department of Electrical and Electronics Engineering (2007)
Calculation of electromagnetic wave propagation over irregular terrain is an important problem in many applications such as coverage calculations for radars or communication links. Many different approaches to this problem may be found in the literature. One of the most commonly used methods to solve electromagnetic boundary value problems is the Method of Moments (MoM). However, especially at high frequencies, the very large number of unknows required in the MoM formulation, limits the applicability of thi...
Advanced readout and control electronics for mems gyroscopes
Temiz, Yüksel; Akın, Tayfun; Department of Electrical and Electronics Engineering (2007)
This thesis reports the development of advanced readout and control electronics for MEMS gyroscopes developed at METU. These gyroscope electronics are separated into three main groups: high sensitive interface circuits, drive mode amplitude controlled self oscillation loops, and sense mode phase sensitive amplitude demodulators. The proposed circuits are first implemented with discrete components, and then integrated on CMOS chips. A self oscillation loop enabling constant amplitude drive mode vibrations in...
Design of a slotted waveguide array antenna and its feed system
Top, Can Barış; Hızal, Altunkan; Department of Electrical and Electronics Engineering (2006)
Slotted waveguide array (SWGA) antennas find application in systems which require planarity, low profile, high power handling capabilities such as radars. In this thesis, a planar, low sidelobe, phased array antenna, capable of electronically beam scanning in E-plane is designed, manufactured and measured. In the design, slot characterization is done with HFSS and by measurements, and mutual coupling between slots are calculated analytically. A MATLAB code is developed for the synthesis of the SWGA antenna....
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
Ö. Erdem, “Chaotic demodulation under interference,” M.S. - Master of Science, Middle East Technical University, 2006.
