Design and Evaluation of a Discrete Wavelet Transform based Multi-Signal Receiver

ABSTRACT

General purpose receivers of today are designed with a broad bandwidth so that the receiver can accept a wide range of signal frequencies. These receivers usually accept one signal along with an y interference that is included. To increase the signal Continue reading

Speech Recognition with Dynamic Time Warping using MATLAB

ABSTRACT

Speech recognition has found its application on various aspects of our daily lives from automatic phone answering service to dictating text and issuing voice commands to computers. In this paper, we present the historical background and Continue reading

Generating an Isolated Word Recognition System Using Matlab

ABSTRACT

MATLAB’s straight forward programming interface makes it an ideal tool for speech analysis. In this work, experience was gained in general MATLAB programming. A basic speaker recognition algorithm has been written to Continue reading

Speech Recognition Using Correlation Technique

ABSTRACT

The Development in Wireless and communication and mobile devices has bolstered the improvement of speech recognition system. When we say speech recognition system two main significant terms that comes are the pattern matching and the feature Continue reading

Direct Detection in Optical Communication Using Intensity Modulation

ABSTRACT

Optical wireless communication (OWC) refers to communication through an unguided medium using modulated light. In this paper, the performance of OWC systems employing intensity modulation and direct detection (IM-DD), established by modulating Continue reading

Using Matlab Tools for Simulation of the Optical Transmission Medium

ABSTRACT

The paper presents a design and simulation of the optical path which include linear and nonlinear effects using the MATLAB simulation tools. The program includes a calculation part of nonlinear effects and a simulation part where the signal is examined Continue reading

The Laser Satellites Communications and Laser Noises

ABSTRACT

The gain of advanced optical communication systems is reduced by the noise of optical source. Coherent optical communication systems are in particular very sensitive to the noise transmitter and local laser. Optical space communications is on the verge Continue reading

Simulation and Animation in Optical Fiber Communication

ABSTRACT

Students find certain concepts in fiber optic communication theory difficult to grasp. A classic example is electromagnetic mode theory in cylindrical coordinates. The solutions of the differential equation which describe the modes of the fiber are Bessel Continue reading

MATLAB Simulink Simulation Platform for Photonic Transmission Systems

ABSTRACT

High speed and ultra-high capacity optical communications have emerged as the essential techniques for backbone global information transmission networks. As the bit rate of the transmission system gets higher and higher 40 Gb/s to 100 Gb/s the Continue reading

Wavelet Signal and Image Denoising

ABSTRACT

The paper deals with the use of wavelet transform for signal and image denoising employing a selected method of thresholding of appropriate decomposition coefficients. The proposed technique is based upon the analysis of wavelet transform and it Continue reading