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Time–frequency shift invariance and the Amalgam Balian–Low theorem
(Academic Press Inc Elsevier Science, 2016-11)
We consider smoothness properties of the generator of a principal Gabor space on the real line which is invariant under some additional translation–modulation pair. We prove that if a Gabor system on a lattice with rational ...
Generation of optical frequency combs via four-wave mixing processes for low- and medium-resolution astronomy
(Springer, 2015-05)
We investigate the generation of optical frequency combs through a cascade of four-wave mixing processes in nonlinear fibres with optimised parameters. The initial optical field consists of two continuous-wave lasers with ...
Sub-picosecond ultra-low frequency passively mode-locked fiber laser
(Springer, 2016-11)
We developed a nonlinear polarization rotation all-fiber mode-locked erbium-doped fiber laser, with the purpose to reach a sub-picosecond and sub-megahertz light pulse emission. In the process, we observed three different ...
Robust model predictive control via LMIs applied for damping low-frequency electromechanical oscillations in power systems
(2021-08-15)
This paper proposes the application of robust model predictive control designed via linear matrix inequalities with infinite prediction horizon in the online and offline modes to damp low-frequency electromechanical ...
Low-frequency noise investigation of n-channel 3D devices
(2015-11-01)
In this paper, the low-frequency (LF) noise in standard n-channel triple-gate Bulk FinFETs has been experimentally investigated with variation in the fin widths (W<inf>Fin</inf>), channel lengths (L) and gate dielectric. ...
Low-Frequency Noise Assessment of Different Ge pFinFET STI Processes
(Ieee-inst Electrical Electronics Engineers Inc, 2016-10-01)
An experimental low-frequency noise (LFN) assessment of long channel Ge pFinFET devices fabricated in different shallow trench isolation (STI) processes is presented, taking into consideration devices with fin widths from ...
Horizontal, Stacked or Vertical Silicon Nanowires: Does it Matter from a Low-Frequency Noise Perspective?
(Ieee, 2020-01-01)
This work reviews the low-frequency noise performance of different flavors of silicon Gate-All-Around Nanowire (NW) (or Nanosheet - NS) transistors. For the horizontal devices, the 1/f-like noise is dominated by the number ...
On the avalanche multiplication mechanism in SPICE simulations of high-frequency bipolar transistors with thin basewidths and low breakdown voltages
(Elsevier Gmbh, Urban & Fischer VerlagJenaAlemanha, 2005)
Microcalcification enhancement and classification on mammograms using the wavelet transform
(2008-11-24)
This paper presents a method to enhance microcalcifications and classify their borders by applying the wavelet transform. Decomposing an image and removing its low frequency sub-band the microcalcifications are enhanced. ...