A NEW ITERATIVE SPEECH ENHANCEMENT SCHEME BASED ON KALMAN FILTERING



ABSTRACT

A new iterative speech enhancement scheme that can be seen as an approximation to the Expectation-Maximization (EM) algorithm is proposed. The algorithm employs a Kalman filter that models the excitation source as a spectrally white process with a rapidly time-varying variance, which calls for a high temporal resolution estimation of this variance.

. INTRODUCTION

Single channel noise reduction of speech signals using ....etc

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An Efficient and Fair Scheduling Scheme for
Multiuser OFDM Wireless Networks



Abstract

This paper proposes a new MAC scheduling scheme
for efficient support of multimedia services in multiuser OFDM
wireless networks, both in the uplink and in the downlink. This
scheme is based on a system of weights that dynamically accounts
for the experienced QoS and the transmission conditions in
an extended higher layers/MAC/PHY cross layer design.

INTRODUCTION

Orthogonal Frequency Division Multiplex ....etc

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A Low-Complexity SISO Multiuser Detector for Iterative Decoding of Asynchronous CDMA Systems With Convolutional Codes
Abstract
The optimal decoding scheme for asynchronous codedivision multiple-access (CDMA) systems that employ convolutional codes results in a prohibitive computational complexity. To reduce the computational complexity, an iterative receiver structure was proposed for decoding multiuser data in a convolutional coded CDMA system. At each iteration, extrinsic information is exchanged between a soft-input soft-output (SISO) ....etc

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To get full information or details of multiuser chatting system please have a look on the pages

http://seminarsprojects.net/Thread-multi-user-chatting-system?pid=19036&mode=threaded

http://seminarsprojects.net/Thread-multi-user-chatting-system?pid=3843&mode=threaded

http://seminarsprojects.net/Thread-multi-user-chatting-system

if you again feel trouble on multiuser chatting system please reply in that page and ask specific fields in multiuser chatting system ....etc

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ABSTRACT
In today s business where speed is of essence, an iterative development approach that
allows the functionality to be delivered in parts has become a necessity and an effective
way to manage risks. In an iterative process, the development of a software system is done
in increments, each increment forming of an iteration and resulting in a working system. A
common iterative approach is to decide what should be developed in an iteration and then
plan the iteration accordingly. A somewhat different iterative is approach is to ....etc

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ppt for LOSSY COMPRESSION AND ITERATIVE RECONSTRUCTION
FOR ENCRYPTED IMAGE ....etc

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Multiuser SMS Based Wireless Electronic Notice Board Project

INTRODUCTION

The Multiuser SMS Based Wireless Electronic Notice Board Project represents the model to show the notices on technological notice board in colleges through sending messages in the form of SMS by mobile. This is a seamless transmission method that includes low errors and perpetuation. The board of hardware includes microcontroller AT89c52 present at the model of heart. The microcontroller is blend with converter MAX232 level and GSM Modem. This is app ....etc

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please send the source code for multiuser chat system on core java
thank you. ....etc

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Near-Optimal Multiuser Detection in Synchronous CDMA Using Probabilistic Data Association
Presented By:
J. Luo, Student Member, IEE, K. R. Pattipati, Fellow, IEE, P. K. Willett, Senior Member, IEE, and F. Hasegawa, Member, IEE
Abstract
A Probabilistic Data Association (PDA) method is proposed in this letter for multiuser detection over synchronous code-division multiple-access (CDMA) communication channels. PDA models the undecided user signals as binary random variables. By approximating the inter-user interference (IU ....etc

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i need the the matlab code for the LTE system using iteratice doppler-assisted channel estimation. The interference in that system ve to cancells by Progressive parallel interference cancellation scheme.
plse post the code.. it may helpful
thanks in advance ....etc

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