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 20 of 46 for “"Linear Prediction"”.
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Configural vs. Linear Prediction of Collegiate Academic Performance
Made available in DSpace on 2014-12-03T23:50:53Z (GMT). No. of bitstreams: 1 0019843.pdf: 4825264 bytes, checksum: 4ecf2afc99dc79df4c50cff9820cd68d (MD5) Previous issue date: 1956
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Rational modeling and linear prediction of random fields
… a random field as the output of a rational linear system driven by the innovations of the field. A variety of linear prediction problems, each depending upon the definition of past, may be formulated for random fields; consequently, there are an equal number of innovations representation …
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Online Non-linear Prediction of Financial Time Series Patterns
We consider a mechanistic non-linear machine learning approach to learning signals in financial time series data. A modularised and decoupled algorithm framework is established and is proven on daily sampled closing time-series data for JSE equity markets. The input patterns are based on input data …
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A linear prediction approach to two-dimensional spectral factorization and spectral estimation.
Thesis. 1978. Ph.D.--Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
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A New Hardware Approach to Coefficient Determination for the Linear Prediction of Speech
Made available in DSpace on 2014-12-13T18:02:11Z (GMT). No. of bitstreams: 1 7915412.pdf: 3773726 bytes, checksum: f15154c96666900cc122eb96673a0a89 (MD5) Previous issue date: 1979
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Time-varying linear prediction as a base for an isolated-word recognition algorithm
… the evaluation of the feasibility of using linear prediction (LP) with time-varying parameters as a base for a voice recognition algorithm will be investigated. First the development of an anti-aliasing filter is discussed with some results from the filter hardware realization included. Then …
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A sample selective linear predictive analysis of speech signals
The Linear Prediction Analysis is one of the popular methods of processing speech. But it has problems in estimating the vocal tract characteristics of voiced sounds uttered by females and children. This is because the conventional linear prediction method assumes that all the sample values in each …
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Speech Coder using Line Spectral Frequencies of Cascaded Second Order Predictors
… to channel errors, we do not use pitch prediction and compensate for its lack with a better representation of the excitation signal. We propose a new speech coding approach, Vector Sum Excited Cascaded Linear Prediction (VSECLP), based on code excited linear prediction. We implement …
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Vector quantization applied to speech coding in the wireless environment
… Digital Cellular (NADC) 8kbps Vector-Sum Excited Linear Prediction (VSELP) speech coder and is currently capable of simulating the complete IS-54 source and channel coding scheme. The system is tested using Multi-Stage Vector Quantization and Finite-State Vector Quantization (FSVQ) applied to the …
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Robust Speech Filter And Voice Encoder Parameter Estimation using the Phase-Phase Correlator
In recent years, linear prediction voice encoders have become very efficient in terms of computing execution time and channel bandwidth usage while providing, in the absence of im- pulsive noise, natural sounding synthetic speech signals. This good performance has been achieved via the use of a …
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Síntesis multilocutor aplicando técnicas de conversión de hablante
… de los sintetizadores es un sintetizador LP (Linear Prediction) que concatena unidades codificadas. El modelo de fuente utilizado es un polinomio de sexto orden para modelar la integral del residuo y un filtro posterior para añadir riqueza frecuencial a la señal. En ambos casos se han …
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Link Stability Analysis of Wireless Sensor Networks Over the Ocean Surface
… through the following steps. First, we use the linear wave theory and obtain a novel stochastic model of Line-of-Sight (LoS) links over the ocean based on the realistic behavior of ocean waves. Second, we present and prove an important theorem on the level-crossing of Wide Sense Stationary (WSS) …
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Autoregressive hidden Markov models and the speech signal
… upon the mathematical structure of the HMM and linear prediction analysis of speech signals. By incorporating these two methods into one inference algorithm, linguistic structures are inferred from a given set of speech data. These results extend historic experiments in which the HMM is used to …
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Acoustic and seismic signal processing for footsetp detection
… ear's most sensitive frequency bands. Second, linear predictive modeling is shown to be an effective means to detect footsteps in accelerometer and microphone data. The time evolution of the third order linear prediction coefficients leads to the classical binary hypothesis testing framework. …
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Simulation of VSELP speech encoder for mobile channels
… performance evaluation of the Vector Sum Excited Linear Prediction Coder (VSELP). Recently there has been an incredible demand for personal communication services. To meet this demand various technologies have been developed. The U. S. digital cellular standard uses the 8 kbps VSELP speech coder …
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Exploiting pitch dynamics for speech spectral estimation using a two-dimensional processing framework
… derived from traditional and homomorphic linear prediction. We conclude by highlighting potential benefits of our framework in the particular application of speaker recognition with preliminary results indicating a performance gender-gap closure on subsets of the TIMIT corpus.
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Time domain segmentation of speech signals
… type of frequency domain processing, such as linear prediction, may be necessary in phonetic recognition. Phonetic recognition is outside the scope of this thesis.
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Modeling and frequency tracking of marine mammal whistle calls
… Structured total least squares is used with linear prediction analysis to track the time-varying fundamental frequency and harmonic amplitude contours throughout a whistle call. Simulation and experimental results demonstrate the capability to accurately model bottlenose dolphin whistle calls …
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Modeling and frequency tracking of marine mammal whistle calls
… Structured total least squares is used with linear prediction analysis to track the time-varying fundamental frequency and harmonic amplitude contours throughout a whistle call. Simulation and experimental results demonstrate the capability to accurately model bottlenose dolphin whistle calls …
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Channel Prediction for Adaptive Modulation in Wireless Communications
… performance enhancement made possible by using linear prediction along with channel estimation in conjunction with adaptive modulation. We begin this manuscript with basic fundamentals of our study, followed by a detailed view of simulations, their results, and our conclusions from them. The …
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