Results 11 to 20 of about 1,693,030 (143)
Joint 2-D angles and time delay estimation of coherent wideband signals [PDF]
MATEC Web of Conferences, 2020 Joint direction of arrival (DOA) and time delay (TD) estimation of wideband signals such as WIFI and mobile communication signals has to face the challenges aroused by multipath effect in indoor environments.
Li Xiangzhi +6 more
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Coherent Anti-Stokes Hyper-Raman Spectroscopy [PDF]
Nature CommunicationsCoherent Raman scattering spectroscopies have been established as a powerful tool for investigating molecular systems with high chemical specificity. The existing coherent Raman scattering techniques detect only Raman active modes, which are a part of ...
Kazuki Inoue, Masanari Okuno
doaj +2 more sources
Sparse representation-based DOA estimation of coherent wideband LFM signals in FRFT domain
EURASIP Journal on Wireless Communications and Networking, 2017 In this paper, the method of direction-of-arrival (DOA) estimation for wideband signals based on sparse representation of FRFT domain is proposed by using the excellent convergence of FRFT to LFM signals.
Bo Li, Xiuhong Wang
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Novel DOA estimation method for coherent wideband LFM signals [PDF]
Tongxin xuebao, 2012 A novel direction of arrival (DOA) estimation method for coherent wideband linear frequency modulation (LFM) signals was proposed.Based on the dechirping property of LFM signal in fractional Fourier domain,a new array data model was constructed,then the ...
Peng,LIUKai-hua LUO +2 more
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Angle of arrival estimation for broadband signals : a comparison [PDF]
, 2013 This paper reviews and compares three different linear algebraic signal subspace techniques for angle of arrival estimation. These include a polynomial matrix approach to multiple signal classification (MUSIC), a parameterised spatial covariance matrix ...
Weiss, Stephan +4 more
core +4 more sources
, 2023 In this project we focus on the interplay between volume of sales and number of reviews and explore what happens when these signals are perceived as congruent versus ...
Signals of Popularity
core +1 more source
IEEE Access, 2021 For scenarios of coherent underwater sources at low signal-to-noise ratio (SNR), a novel quaternion-based DOA algorithm without eigendecomposition is proposed using a linear vector-hydrophone array.
Yi Lou +3 more
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Coherent combining of low-power optical signals based on optically amplified error feedback [PDF]
, 2022 In free-space optical communication links, the combining of optical signals from multiple apertures is a well-known method to collect more power for improved sensitivity or mitigation of atmospheric disturbances.
Schröder, Jochen, +12 more
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IEEE Access, 2020 This paper considers the coherent integration problem for a low-observable maneuvering target, where the velocity and acceleration result in range migration (RM) and Doppler frequency migration (DFM) within the coherent pulse interval.
Jinzhi Xiang, Wei Cui, Jing Tian
doaj +1 more source
IEEE Access, 2019 The sparse reconstruction techniques can improve the accuracy and resolution of the direction of arrival (DOA) estimation using sensor arrays. However, due to reflective objects and nonidealities of the antennas and circuitry, the received signals may be
Yuexian Wang +4 more
doaj +1 more source