Thermocouples are one of the most popular devices for temperature measurement in many mechatronic implementations. However, large wire diameters are required to withstand harsh environments and consequently the sensor bandwidth is reduced. This paper describes a novel algorithmic compensation technique based on blind deconvolution to address this loss of high frequency signal components using t...

The aim of this paper is to compare the performance of Blind channel Estimation in OFDM with pilot based channel estimation. A blind channel estimation is presented for uncoded OFDM. In this method, four steps is done. The four steps are decision algorithm, channel impulse response estimation, channel frequency response estimation and data recovery. The decision algorithm first makes the primar...

Signal-Perturbation-Free Semi-Blind Channel Estimation forMIMO-OFDM Systems Feng Wan, Ph.D.Concordia University, 2009 Multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) has been considered as a strong candidate for the beyond 3G (B3G) wirelesscommunication systems, due to its high data-rate wireless transmission performance.It is well known...

| The performance of second order statistics (SOS) based semi-blind channel estimation in long-code DS-CDMA systems is analyzed. The covariance matrix of SOS estimates is obtained in the large system limit, and is used to analyze the largesample performance of two SOS based semi-blind channel estimation algorithms. A notion of blind estimation e ciency is also de ned and is examined via simulat...

We consider vector channel estimation for differentially modulated systems with transmit diversity. We propose a blind estimation scheme to yield superior performance to that of the pilot-aided estimation. The proposed scheme utilizes the repeated transmission of space-time coded data symbols. We compare the performance of the proposed blind scheme with the pilot-based estimation scheme via com...

The performance of many comm. systems could be improved if the transmission channel was estimated blindly, i.e. without training sequences. As an example, we investigate in this paper whether, on GSM conditions, the blind channel estimation method EVI (EIGENVECTOR APPROACH TO BLIND IDENTIFICATION) can compete with the non-blind least squares scheme based on the cross-correlation. For Gaussian s...

VIDEO CODING AND DECODING USING BLIND NON ADAPTIVE ESTIMATION AND ADAPTIVE ESTIMATION OF KLT BASIS VECTORS An approach to video encoding and decoding by using three different algorithms techniques is discussed in this project. These methods can be used to estimate the basis vectors used by Karhunen-Loeve Transform (KLT) for encodıng and decodıng of the frames in a video sequences. The first met...

Channel estimation plays a leading role in wireless communication systems such as GSM (Global System for Mobile communications). Putting the main emphasis on investigating the application of non-blind and blind channel estimation approaches to the identification of a full rate data Traffic CHannel (TCH/F9.6), we present in this paper a new idea of an iterative channel estimation based upon the ...