VUV frequency combs from below-threshold harmonics [PDF]
, 2009 Recent demonstrations of high-harmonic generation (HHG) at very high repetition frequencies (~100 MHz) may allow for the revolutionary transfer of frequency combs to the vacuum ultraviolet (VUV).
A Marian +37 more
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Reducing power line interference with the continuous automatic cab signalling channel
Вестник Научно-исследовательского института железнодорожного транспортаIntroduction. Interference in the continuous automatic cab signalling channel distorts transmitted signals and causes signalling malfunctions. Reduction of interference in the channel involved a previously proposed receiver with quadrature channels and ...
R. R. Yusupov, A. S. Khokhrin
doaj +1 more source
Development of Harmonic Drive Combining Four Arcs for Conventional Kinematic Application
Machines, 2022 This paper proposes a modified harmonic cam, which is used to design a harmonic drive. Conventional harmonic drives using a sinusoidal cam type pertain to an elastic body concept and are thus difficult to design and evaluate.
Taesu Kim +4 more
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Российский технологический журналObjectives. Signals with multiple phase shift keying (M-PSK) exhibiting good spectral and energy characteristics are successfully used in many information transmission systems.
V. D. Nguyen
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Energies, 2022 Voltage sag detection is utilized to capture the sag occurrence moment and calculate the sag depth of power grid voltage in real time, so as to generate reference voltage for controlling voltage interactive equipment such as dynamic voltage restorers ...
Zhenyu Li +4 more
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A Blind Interference Canceling Technique for Two-Stage Harmonic Rejection in Down-mixers [PDF]
, 2008 This paper presents practical experiments on a harmonic rejection down-mixer, which offers up to 75 dB of harmonic rejection, without an RF filter. The down-mixer uses a two-stage approach; the first stage is an analog multi-path/multiphase harmonic ...
Klumperink, E.A.M. +2 more
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Experimental demonstration of the time reversal Aharonov-Casher effect [PDF]
, 2005 We demonstrate the time reversal Aharonov-Casher (AC) effect in small arrays of mesoscopic semiconductor rings. By using an electrostatic gate we can control the spin precession rate and follow the AC phase over several interference periods. We show that
Bergsten, Tobias +3 more
core +3 more sources
Experimental Verification of a Harmonic-Rejection Mixing Concept using Blind Interference Canceling [PDF]
, 2008 —This paper presents the first practical experiments\ud on a harmonic rejection downconverter, which offers up to 75 dB of harmonic rejection, without an RF filter.
Klumperink, E.A.M. +2 more
core +2 more sources
Second harmonic generation at the quantum-interference induced transparency in semiconductor quantum wells: The influence of permanent dipole moments [PDF]
, 2001 The influence of permanent dipole moments of quantized states on intersubband second harmonic generation based on quantum-interference induced transparency in semiconductor quantum wells is explored using the harmonic balance method.
Ikonic, Z., Kocinac, S., Milanovic, V.
core +1 more source
Weak harmonic signal detection method in chaotic interference based on extended Kalman filter
Digital Communications and Networks, 2019 The traditional methods of weak harmonic signal detection under strong chaotic interference often suffer from high computational complexity and poor performance.
Chengye Lu +3 more
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