Ara
Toplam kayıt 38, listelenen: 1-10
A new model for speech compression
(Işık Üniversitesi, 2021-19-10)
This thesis aims to propose a new low bit-rate speech compression method. In the proposed method, classical SYMPES (Systematic Procedure for Predefined Envelope and Signature Sequences) based predefined signature and ...
Optimal and model predictive control of a quadrotor
(Işık Üniversitesi, 2020-08-21)
Quadrotors are unmanned aerial vehicles (UAVs) used widely and these vehicles have been controlled with di erent controllers, such as PID, Linear Quadratic Regulator (LQR) and, Model Predictive Control (MPC). In this study, ...
Battery test and management system
(Işık Üniversitesi, 2019-05-28)
This thesis is about meeting and answering the needs of devices with batteries for battery testing and management. The goal of the battery test and management's is to use the full capacity of the device and to be able to ...
Performance analysis of space time transmit diversity in UMTS under presence of carrier phase offset
(Işık Üniversitesi, 2003-12)
The reguirements for the next generation of mobile communication systems are primarily driven by the explosive growth of worldwide mobile communication subscribers. Additionaly, 3G systems will allow various of new services ...
Implementation of a fixed cellular terminal with mobile phone
(Işık Üniversitesi, 2002-09)
The thesis reports the design and realization of a fixed cellular terminal (FCT) device which works with a mobile phone as a GSM Module. The design is emphasized at the structure not to be complex and suitable to be used ...
Compression of the mammography images using quadtree based energy and pattern blocks
(Işık Üniversitesi, 2017-01-16)
Medical images, like any other digital data, require compression in order to reduce disk space needed for storage and time needed for transmission. This thesis offers , a novel image compression method based on generation ...
Decision making and Yarsoy decision support tool
(Işık Üniversitesi, 2002-09)
Every human makes decisions in the course of his interactions with the world and other human acting in the world. To make good decisions, we need knowledge about events that occur in the world and preferences we have. ...
Enhancement of the coded speech using filtering
(Işık Üniversitesi, 2017-04-14)
The processing and storage of speech signals are widely implemented in modern communication systems. Decreasing the amount of information for modeling the reconstruction of speech signal enhances the transmission and storage ...
Design and performance analysis of a novel trellis coded space-time-frequency transmission scheme
(Işık Üniversitesi, 2004-07)
This work is concerned with a transmitter diversity technique for wireless communications over frequency selective fading channels. The proposed technique utilizes orthogonal frequency division multiplexing (OFDM) to ...
GSM and GPRS security
(Işık Üniversitesi, 2004-09)
In this thesis study, today's popular mobile voice (GSM) and data (GPRS) communication technologies (as an intorduction) and their security were studied. GSM arhitecture, key components of the GSM, security fonctions, and ...