Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Training sequences."”.
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Rapid Acquisition of Telephone Line Channel for High Speed Data Transmission Without Using Training Sequences
… acquisition is achieved without using long training sequences but the data itself is used to acquire the channel. This problem is discussed with reference to a orthogononal frequency division multiplexed modem for high speed data transmission over limited bandwidth channels. Algorithms …
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Transmit Signal Design for MIMO Radar and Massive MIMO Channel Estimation
… no longer remain practical. In current systems, training sequences probe wireless channels in orthogonal directions to obtain channel state information for block fading channels. The training overhead becomes signicant as the number of transmit antennas increases, thereby creating a need for …
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Binary classification with training under both classes
… on the binary classification problem with training data under both classes. We first review binary hypothesis testing problems and present a new result on the case of countably infinite alphabet. The goal of binary hypothesis testing is to decide between the two underlying probabilistic …
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Fractionally Spaced Blind Equalizer Performance Improvement
… the received signal when the transmission of a training sequence in a predefined time slot is not possible. In the absence of a training sequence, blind equalization schemes can also increase the throughput of the overall system. A general problem with blind adaptation techniques is that they …
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Learning deformable models for tracking human motion
… different problems. A more recent approach uses training information to build models for image analysis. This thesis extends this approach by building flexible 2D models, automatically, from sequences of training images. Efficient methods are described for using the resulting models for real time …
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Fast blind adaptive equalisation for multiuser CDMA systems
… in the literature, some of which rely on training sequences, such as the Least Mean Squares (LMS) and Recursive Least Squares (RLS) algorithms, or on blind adaptation, such as the Constant Modulus Algorithm (CMA) or the Decision Directed algorithm (DD), which has similar convergence …
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Adaptive DS-CDMA multiuser detection for time variant frequency selective Rayleigh fading channel
… large delay spread, fading channels without training sequences. To achieve high data rate communication, a finite impulse response (FIR) filter based detector is presented for M-ary QAM modulated signals in a multipath Rayleigh fading channel. It is shown that the proposed detector provides a …
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High rate space time code with linear decoding complexity for multiple transmitting antennas
… the performance loss, one may lengthen the training sequences used for the channel estimation which, inevitably, results in some rate loss. In addition, complex decoding schemes can be used at the receiver to jointly decode the data while enhancing the channel estimation. It is suggested in …
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Multi-dimensional direct-sequence spread spectrum multiple-access communication with adaptive channel coding
… (CE-LI-RU) filtered General Chirp-Like (GCL) sequences [34, 37, 38] to band limit and spread user data. It then utilizes a fully user-definable, complex Multipath Fading Channel Simulator(MFCS), first presented by Staphorst [3], which is capable of reproducing all of the physical attributes of …
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Towards practical automated human action recognition
… include 1) initialisation issues with model training: 2) feature sets of limited computational weight sui table for real-ti me application; 3) model robustness to outliers; and 4) pending issues with the standardisation of software interfaces. In the following, we provide a description of our …