Results 31 to 40 of about 1,160,559 (367)

Large-signal theory of the effect of dispersive propagation on the intensity modulation response of semiconductor lasers [PDF]

open access: yes, 2000
We have derived an exact large-signal theory of propagation in a dispersive fiber of an optical wave with sinusoidal amplitude and frequency modulation. This has been applied to the study of large-signal direct-modulation of semiconductor lasers.
Peral, Eva, Yariv, Amnon
core   +1 more source

Laser frequency stabilization by combining modulation transfer and frequency modulation spectroscopy

open access: yesApplied Optics, 2017
5 pages, 3 figures, submitted to ...
Xuejian Wu   +7 more
openaire   +4 more sources

An experimental study of intermodulation effects in an atomic fountain frequency standard [PDF]

open access: yes, 2007
The short-term stability of passive atomic frequency standards, especially in pulsed operation, is often limited by local oscillator noise via intermodulation effects.
G. Dudle   +7 more
core   +2 more sources

On the frequency modulation of VLF emissions

open access: yesAnnales Geophysicae, 1996
Abstract. The VLF-wave frequency modulation efficiency as a function of magnetosphere plasma parameters under the weak pitch-angle diffusion regime is studied. The study is based on the VLF growth-rate modulation both in the magnetosphere equatorial plane and after integrating along the magnetic field line.
Goncharova, M., Lyatsky, W.
openaire   +5 more sources

Hardware Trojan with Frequency Modulation [PDF]

open access: yes2021 IEEE 12th Latin America Symposium on Circuits and System (LASCAS), 2021
The use of third-party IP cores in implementing applications in FPGAs has given rise to the threat of malicious alterations through the insertion of hardware Trojans. To address this threat, it is important to predict the way hardware Trojans are built and to identify their weaknesses.
Ash Luft, Mihai Sima, Michael McGuire
openaire   +3 more sources

Frequency Modulated Raman Spectroscopy

open access: yesACS Photonics, 2017
The coupling of plasmonic and mechanical properties at the nanoscale is of great potential for the development of next generation devices capable to detect weak forces, mass changes, minute displacements and temperature-induced effects. Both the transduction of mechanical motion to the scattered light fields in term of polarization or intensity ...
Greco S   +4 more
openaire   +6 more sources

A Low Inrush Current Pre-Charging Strategy of M3C with Improved Nearest Level Modulation

open access: yesEnergies
The modular multilevel matrix converter (M3C) can perform AC/AC conversion directly. However, M3C operation often requires a pre-charging process, which can be challenging due to the need for fast pre-charging with low inrush current.
Rufei He   +6 more
doaj   +1 more source

Maximizing precision over extended unambiguous range for TOF range imaging systems [PDF]

open access: yes, 2010
The maximum unambiguous range for time-of-flight range imaging systems is inversely proportional to the chosen modulation frequency. However, increasing the unambiguous range by decreasing the modulation frequency will generally also degrade the range ...
Carnegie, Dale A.   +3 more
core   +2 more sources

A Hybrid Frequency Selective Absorber With Dual-Polarized Wireless Communication and Ultra-Wideband Absorption

open access: yesIEEE Open Journal of Antennas and Propagation
Traditional multi-layer frequency selective absorbers (FSAs) with antenna circuit suffer from inter-layer interference, which can adversely affect the in-band frequency bandwidth of wireless communication (fractional bandwidth FBW <20% in ...
Youquan Wen   +4 more
doaj   +1 more source

A Modulated Approach for Improving MFSK RADARS to Resolve Mutual Interference on Autonomous Vehicles (AVs)

open access: yesSensors, 2023
This paper proposes a novel automotive radar waveform involving the theory behind M-ary frequency shift key (MFSK) radar systems. Along with the MFSK theory, coding schemes are studied to provide a solution to mutual interference.
Jonathan Duke, Eli Neville, Jorge Vargas
doaj   +1 more source

Home - About - Disclaimer - Privacy