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 306 for “"impulse response"”.
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Hemodynamic monitoring via impulse response estimation
Thesis (Ph. D.)--Michigan State University. Electrical Engineering, 2010
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Unsteady aerodynamics for aeroelastic applications using the impulse response method
… on the Theodorsen function, which identifies the response of a 2-D wing section to harmonic pitch and plunge oscillations. Recently, however, the Aerodynamic Impulse Response has emerged, identifying a more fundamental aerodynamic response of a discrete-time system as that to a unit impulse. With …
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Roundoff noise in cascade realization of finite impulse response digital filters.
Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1972. M.S.
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A crosscorrelation method for measuring the impulse response of reactor systems
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Nuclear Engineering, 1961
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Estimating the impulse response of linear shift-variant, image degrading systems.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering, 1973
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Experimental determination of the impulse response function for elastic vibrating systems
… method for determination and analysis of the impulse response function of linear, elastic, vibrating systems is developed. A deconvolution method is developed for estimation of the impulse response function. The estimator is shown to be unbiased in the presence of measurement noise. Modal …
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Channel Impulse Response and Its Relationship to Bit Error Rate at 28 GHz
… sounder that measures and captures the channel impulse response of the current channel. Until now, there has been limited research on the relationship between the channel impulse response and the usability of the channel quantified using bit error rate. This thesis examines several different …
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Easy-filter: A Design, Verification, and Validation Tool for Finite Impulse Response (FIR) Filter
Due to increasing hardware design complexity and cutting-edge competition for the short time-to-market requirement, functional verification becomes the primary challenge in the hardware design development project. The essential parts to verify any systems are design code and testbench code. …
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Understanding sewer infiltration and inflow using impulse response functions derived from physics-based models
… using physics-based models. The typical flow response of each I&I source is calculated and these flow responses, called Impulse Response Functions (IRFs), are evaluated. I&I estimation using the three IRFs, calibrated using a genetic algorithm (GA), was performed on a catchment in the Chicago …
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The Polarimetric Impulse Response and Convolutional Model for the Remote Sensing of Layered Vegetation
To date, there exists no complete, computationally efficient, physics-based model to compute the radar backscatter from forest canopies. Several models attempt to predict the backscatter coefficient for random forest canopies by using the Vector Radiative Transfer (VRT) Theory with success, …
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A hybrid method for impulse response measurements with synthesized musical tones and Masked-MLS Stimuli
Impulse responses or transfer functions are descriptions of acoustic and audio transmission channels, which completely characterise point-to-point propagation of sound in room acoustics or input-output relationships of linear systems in electroacoustics. Measurements of impulse responses or …
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Design of Finite Impulse Response Low-Pass Digital Differentiators for Signals in Paley-Wiener Space
<p>Linear Finite Impulse Response (FIR) models for signals in Paley-Wiener space are developed in this thesis. A set of FIR models are derived where the filter coefficients only depend on the bandwidth and the sampling interval. There exists an anti-symmetry in the filter coefficients among …
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Identification of the Impulse-Response Functions of a Non-Reflecting Monopolar Neuron and Its Parts
In order to understand mechanistically how neurons process information, it is necessary to know how postsynaptic potentials and currents are propagated and integrated. In the present work the propagation of current was analyzed by introducing a "current" cable equation to standard ("voltage") cable …
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The influence of added mass on the natural vibrations and impulse response of long, thin cylindrical shells
… is obtained for the natural vibrations and impulse response of a thin circular cylinder containing an added line mass. The solution for a uniform cylinder is derived by taking the added mass to be zero. Numerical calculations of the frequencies and mode shapes for several of the lower modes …
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A new optimization approach to the design of one-dimensional and two-dimensional finite impulse response digital filters
The theory for designing finite impulse response (FIR) frequency sampling digital filters can be extended to two-dimensions. The linear phase frequency response can be represented as a linear combination of individual frequency responses corresponding to the filter's bands. The design of …
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Bit error simulation of FSK, BPSK, and pi/4 DQPSK in flat and frequency-selective fading mobile radio channels using two-ray and measurement- based impulse response models
A software simulation tool has been developed to simulate the performance of digital mobile radio systems in fading channels. The simulation tool generates average bit error rate (BER) and bit-by-bit error patterns with user-specified parameters. The simulation tool can simulate various …
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High-Performance Digital Filters
Digital filters, both finite impulse response (FIR) and infinite impulse response (IIR), are widely used in many applications. The motivation for this work lies in the importance of developing methods to reduce the complexity in implementing these types of filters.
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Transfer function estimation using time-frequency analysis
… an input at a given frequency should result in a response at the same frequency, and a time localized frequency input should result in a response that is nearby in time to the input. Using these principles, the noise in the response can be separated from the physical dynamics. In addition, the …
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