Results 21 to 30 of about 139,045 (195)
Российский технологический журнал, 2020 The wide spread of various radio systems with phase shift keying, including multi-position (MPSK), is due to their high noise immunity and ease of construction of the transmitting and receiving parts of the equipment.
G. V. Kulikov +2 more
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Second harmonic optical coherence tomography [PDF]
, 2004 Second harmonic optical coherence tomography, which uses coherence gating of second-order nonlinear optical response of biological tissues for imaging, is described and demonstrated. Femtosecond laser pulses were used to excite second harmonic waves from
Campagnola +16 more
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Discrete Dynamics in Nature and Society, 2021 Based on the active interference suppression algorithm, this study combines the radar working mode and the interference type and realizes the effective detection of the flaw detection signal by successively processing the radar receiving signal and the ...
Wenping Wu
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A Software-Defined Radio Receiver Architecture Robust to Out-of-Band Interference [PDF]
, 2009 In a software-defined radio (SDR) receiver it is desirable to minimize RF band-filtering for flexibility, size and cost reasons, but this leads to increased out-of-band interference (OBI). Besides harmonic and intermodulation distortion (HD/IMD), OBI can
Klumperink, E.A.M. +3 more
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Self-mixing interferometry for distance measurement using a semiconductor laser with current-modulated wavelength [PDF]
Компьютерная оптика, 2018 The capabilities of the method of current-modulated laser wavelength are shown to be extended by using harmonic modulation. Advantages of the sawtooth modulation method associated with using the frequency measurements of the interference signal as an ...
Dmitry Usanov +4 more
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Influence of Phase Matching on the Cooper Minimum in Ar High Harmonic Spectra [PDF]
, 2010 We study the influence of phase matching on interference minima in high harmonic spectra. We concentrate on structures in atoms due to interference of different angular momentum channels during recombination. We use the Cooper minimum (CM) in argon at 47
B. K. McFarland +9 more
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AIP Advances, 2018 Rotor unbalance and sensor runout are the two major interference sources in magnetically suspended flywheel (MSF), which can induce undesirable harmonic vibration and reduce the attitude control precision of spacecraft.
Yang Zhang, Kun Liu, Zhizhou Zhang
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Multielectron interference of intraband harmonics in solids [PDF]
Physical Review B, 2019 High harmonic generation in solids provides us compact and coherent UV sources. Our simulations illustrate abnormal harmonic yield dependence on the intensity of driving or pre-excitation pulses. A multielectron interference model is proposed to reveal the mechanism of the extreme nonlinear optical phenomena.
Ling-Jie Lü, Xue-Bin Bian
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Interference effects in second-harmonic generation within an optical cavity [PDF]
, 1984 An experiment is described that investigates certain interference effects for second-harmonic generation within a resonant cavity. By employing a noncollinear geometry, the phases of two fundamental beams from a frequency-stabilized dye laser can be ...
Kimble, H. J., Wu, Ling-An
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Information and Telecommunication Sciences, 2021 Background. Modern radar stations for various purposes operate in the conditions of interference created by the imprints of the radar signal from the background surface, from metrological formations (precipitation, clouds, etc.) and artificial radiation ...
Ігор Прокопенко +3 more
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