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 7 of 7 for “"impulse response measurements"”.
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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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Improvements to the acoustic pulse reflectometry technique for measuring duct dimensions
… tool for non-invasively measuring the input impulse response, from which the internal duct dimensions can be calculated. In this thesis, the theory describing wave propagation in a duct of varying crosssection is outlined, culminating in a discussion of the layer peeling algorithm used to …
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Performance Evaluation of DECT in Different Radio Environments
… performance in a radio channel, channel impulse response measurements at 1.9 GHz are made. Parameters that help describe the radio channel are identified and calculated from the recorded power delay profile measurements. Finally, a mean-opinion-score (MOS) rating was performed for …
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Microwave multipath resolution in microcellular channels
… of this research is to compare radio channel impulse response measurements with site-specific radio wave propagation prediction techniques. A wide band spread spectrum measurement system was developed, and desirable measurement locations were selected on the Virginia Tech campus. These …
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An Acoustical Analysis of Domes Coupled to Rooms, with Special Application to the Darussholah Mosque, in East Java, Indonesia
… to the results derived from physical scale model measurements. The scale model measurement techniques involved evaluation of impulse responses in a 1:12 scale model of Darussholah mosque, in East Java, Indonesia. A miniature human voice source was created to carry out the impulse response …
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Spatial modulation in the underwater acoustic communication channel
… transformation. Given knowledge of the channel impulse responses and assuming additive, white Gaussian noise as the only interference, the advantages of using spatial modulation over a deterministic channel may be exactly computed. Improving performance over an ensemble of channels using spatial …
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Acoustics of the Salt Lake Tabernacle: Characterization and Study of Spatial Variation
… that began with the measurement of hundreds of impulse responses for five different source positions and several receiver locations throughout the hall seating areas. The acoustics were further characterized by deriving various parameters from these responses that correlate with subjective …