Acoustooptic digital filter [PDF]
Digital filters have three components: (1) unit delays, (2) multipliers, and (3) adders. These components can be implemented by using (1) a Bragg cell as a tapped delay line, (2) optical multiplication using the Bragg cell transmittance, and (3) photodetectors.
F, Salamat, R J, Marks Ii
openaire +2 more sources
The simulation of piano string vibration: {F}rom physical models to finite difference schemes and digital waveguides [PDF]
A model of transverse piano string vibration, second order in time, which models frequency-dependent loss and dispersion effects is presented here. This model has many desirable properties, in particular that it can be written as a well-posed initial ...
Bensa, Julien +3 more
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Low passband sensitivity digital filters: A generalized viewpoint and synthesis procedures [PDF]
The concepts of losslessness and maximum available power are basic to the low-sensitivity properties of doubly terminated lossless networks of the continuous-time domain.
Mitra, Sanjit K., Vaidyanathan, P. P.
core +1 more source
An investigation of an MPEG-4 embedded spatial digital watermark developed for tamper detection and characterization [PDF]
The widespread adoption of digital video techniques has generated a requirement for authenticity verification in applications such as criminal evidence, insurance claims and commercial databases.
Bull, DR +3 more
core +2 more sources
Active control of vibrant actuators with adaptive adjustment of the reference [PDF]
An improved adaptive filter for eliminating periodic vibrations of unknown frequency in rotary machinery is presented. The proposed canceller is based on a usual bank of digital adaptive notch filters, each filter tuned in the cancellation of one ...
Bertran Albertí, Eduardo +1 more
core +1 more source
Filter determines whether time period of incoming signal matches time preset in filter.
Meers, B. Z., Jr.
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Selecting digital filters [PDF]
Technique reduces task of filter design by using cut off frequency, termination frequency and weight number to determine filter effect on frequency domain of digital filter input data ...
Demandel, R. E., Krivo, S. J.
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Digital filter for reducing sampling jitter in digital control systems Patent [PDF]
Digital filter for reducing jitter in digital control ...
Anderson, T. O., Hurd, W. J.
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Special purpose computer provides programmable digital filter for sampled-data control systems [PDF]
Generalized digital filter is a special purpose computer. The term digital filter is an algorithm which accepts an input sequence of numbers and transforms it into an output number sequence.
Carroll, C. C.
core +1 more source
Verification of Magnitude and Phase Responses in Fixed-Point Digital Filters
In the digital signal processing (DSP) area, one of the most important tasks is digital filter design. Currently, this procedure is performed with the aid of computational tools, which generally assume filter coefficients represented with floating-point ...
Clavier, Laurent +6 more
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