Influence phase and frequency instability coherent of oscillator on quality of coherent accumulation of echo-signals [PDF]
, 2003 Проводится анализ влияния нестабильности начальной фазы и частоты когерентного гетеродина в РЛС с эквивалентной внутренней когерентностью на качество когерентного накопления эхо-сигналовПроводиться аналіз впливу нестабільності початкової фази і частоти ...
В.Р. Хачатуров +6 more
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Generation of Tunable Coherent Tri-Frequency Microwave Signals Based on Optoelectronic Oscillator
PhotonicsWe report a coherent tri-frequency microwave signal generation approach using an optoelectronic oscillator (OEO). In the previous literature, the OEO-based schemes can only generate coherent microwave signals with dual frequencies.
Nan Zhang +7 more
doaj +1 more source
DOA Estimation of Coherent Signals on Coprime Arrays Exploiting Fourth-Order Cumulants. [PDF]
Sensors (Basel), 2017 Hu Y, Liu Y, Wang X.
europepmc +1 more source
Improved Spatial Differencing Scheme for 2-D DOA Estimation of Coherent Signals with Uniform Rectangular Arrays. [PDF]
Sensors (Basel), 2017 Shi J, Hu G, Sun F, Zong B, Wang X.
europepmc +1 more source
Testing for Mean-Coherent Regular Risk Spanning [PDF]
Coherent risk measures have received considerable attention in the recent literature.Coherent regular risk measures form an important subclass: they are empirically identifiable, and, when combined with mean return, they are consistent with second order ...
Melenberg, B., Polbennikov, S.Y.
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Initial code acquisition in the cooperative Non-Coherent MIMO DS-CDMA downlink
, 2009 In this paper we investigate a realistic code acquisition assisted cooperative Non-Coherent (NC) Multiple-Input Multiple-Output (MIMO) DS-CDMA downlink scenario, when communicating over uncorrelated single-path and multi-path Rayleigh channels.
Lee, Kyungchun +2 more
core +1 more source
Near-far effect mitigation method using pseudolite signal acquisition
Journal of Measurement Science and Instrumentation, 2017 In this paper,a new idea based on pseudolite signal acquisition method aiming to mitigate the near-far effect problem in the satellite positioning is proposed.After analyzing the signal capture principle based on coherent integration and non-coherent ...
WANG Di, CHEN Guang-wu, LIU She-de
doaj
The Astrophysical Journal Supplement SeriesCoherent and quasi-coherent variability in active galactic nuclei (AGN) can serve as a useful diagnostic of dynamical processes operating in the immediate environments of supermassive black holes. The time-domain capabilities of the Vera C.
Andjelka B. Kovačević +33 more
doaj +1 more source
DOA estimation for coherent signals with symmetric virtual array
, 2013 A new direction of arrival (DOA) estimation method for the uniform linear array is proposed for correlated non-circular source signals. The new DOA estimation method applies a Toeplitz matrix reconstruction method to decorrelate the signals directly ...
Wang, Y., Trinkle, M.
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Broadband angle of arrival estimation methods in a polynomial matrix decomposition framework [PDF]
, 2013 A large family of broadband angle of arrival estimation algorithms are based on the coherent signal subspace (CSS) method, whereby focussing matrices appropriately align covariance matrices across narrowband frequency bins.
Weiss, Stephan +4 more
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