Results 21 to 30 of about 140,378 (296)
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 +8 more sources
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
doaj +1 more source
Interference between Competing Pathways in Atomic Harmonic Generation [PDF]
Physical Review Letters, 2012 We investigate the influence of the autoionizing 3s3p(6)nℓ resonances on the fifth harmonic generated by 200-240 nm laser fields interacting with Ar. To determine the influence of a multielectron response we develop the capability within time-dependent R-matrix theory to determine the harmonic spectra generated.
Brown, A. C. +3 more
openaire +4 more sources
Analysis of harmonic characteristics based on improved double-LCC compensation network structure
Energy Reports, 2022 The article firstly analyzes the filtering characteristics of double-LCC circuit in wireless power transfer (WPT) system. By defining voltage interference ratio (VIR), the harmonic interference introduced by inverter output voltage square waveform is ...
Shuyao Sun +6 more
doaj +1 more source
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
doaj +1 more source
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
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
Experimental Demonstration of Squeezed State Quantum Averaging [PDF]
, 2010 We propose and experimentally demonstrate a universal quantum averaging process implementing the harmonic mean of quadrature variances. The harmonic mean protocol can be used to efficiently stabilize a set of fragile squeezed light sources with ...
A. Berthiaume +11 more
core +5 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