Results 11 to 20 of about 1,483,139 (351)
Analog Frequency Tracking Filter
This paper propose a new type of analog adaptive filter derived as a generalization of the concept of matched filter. We conceive such a filter to track the instantaneous frequency of frequency modulated signals.
ISAR, A., ISAR, D.
doaj +2 more sources
Reconnection–less Reconfigurable Fractional–Order Current–Mode Integrator Design With Simple Control
A design of a fractional-order (FO) integrator is introduced for the operation of the resulting solution in the current mode (CM). The solution of the integrator is based on the utilization of RC structures, but in comparison to other RC structure based ...
Lukas Langhammer +4 more
doaj +1 more source
This study presents a method to recover the response function of a flexible latex membrane undergoing a dynamic event by volume oscillation using Double Digital Fringe Projection to measure the profile of the surface in a sequence of frames. By applying
Ubaldo Uribe López +4 more
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Reconnection-Less Reconfigurable Filter Based on Method of Unknown Nodal Voltages Using 4×4 Matrix
The paper introduces a novel design solution of a reconnection-less reconfigurable filter based on the method of unknown nodal voltages (MUNV). The filter offers all standard 2nd-order transfer functions and the electronic adjustment of the pole ...
Lukas Langhammer, Roman Sotner
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Graph Embedding Using Frequency Filtering [PDF]
The target of graph embedding is to embed graphs in vector space such that the embedded feature vectors follow the differences and similarities of the source graphs. In this paper, a novel method named Frequency Filtering Embedding (FFE) is proposed which uses graph Fourier transform and Frequency filtering as a graph Fourier domain operator for graph ...
Hoda Bahonar +3 more
openaire +3 more sources
Terahertz frequency bandpass filters [PDF]
The design, measurement, and analysis of a range of artificial materials for use at terahertz frequencies are described. The chosen structures consist of arrays of cylindrical gold-plated pillars with period comparable to the wavelength of incident radiation.
Gallant, A. J. +6 more
openaire +3 more sources
Dual-Mode Multifunctional Reconnection-Less Reconfigurable Filter
A novel solution of a reconnection-less reconfigurable filter is being presented. The filter works in the current mode, voltage mode, and mixed mode (voltage tocurrent) offering sixteen transfer functions in total.
Lukas Langhammer +3 more
doaj +1 more source
In this paper, benefiting from frequency transformation between the normalized frequency domain of low-pass prototype frequencies and the real frequency domain of the filter, a purely analytical procedure for dual-band filter design is used. The coupling
Moutaz Albik +3 more
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SIW/HMSIW Bandpass Filters for Ka Frequency Band Serving Wireless Applications [PDF]
This paper describes a novel Substrate Integrated Waveguide (SIW) bandpass filter using Chebyshev approximation and Half Mode Substrate Integrated Waveguide (HMSIW) modeling technique.
Mehdi Damou +5 more
doaj +1 more source
A mine-used frequency converter filter device
The mine-used frequency converter is connected with motor through a long cable, and there is phenomenon of voltage reflection in transmission process of pulse width modulation(PWM) pulse, which causes spike voltage at the motor end and seriously affects ...
RONG Xiang +4 more
doaj +1 more source

