Results 51 to 60 of about 5,419,576 (229)

Conjugate ESPRIT algorithm for bistatic MIMO radar

Electronics Letters, 2010
A novel conjugate ESPRIT (C-ESPRIT) algorithm is proposed to estimate the direction of arrival (DOA) and direction of departure (DOD) for bistatic MIMO radar. It employs the properties of noncircular signals to construct a new virtual array first, the virtual antenna number of which is twice that of the MIMO virtual array.
M.L. Yang, B.X. Chen, X.Y. Yang
openaire   +1 more source

Standardized Elemental Composition Analysis of Graphene‐Related 2D Materials (GR2M) With SEM/EDS and XPS Works Reliably

Small, EarlyView.
The elemental composition of a series of laboratory graphene oxide and reduced graphene oxide materials and a commercial graphene oxide material of high quality is analyzed with the standardless SEM/EDS quantification. XPS is used as a reference method.
Paul Mrkwitschka, Mario Sahre, Elena Corrao, Francesco Pellegrino, Beatriz Alonso, Amaia Zurutuza, Jörg Radnik, Vasile‐Dan Hodoroaba   +7 more
wiley   +1 more source

Two-dimensional Fast ESPRIT Algorithm for Linear Array SAR Imaging

Leida xuebao, 2015
The linear array Synthetic Aperture Radar (SAR) system is a popular research tool, because it can realize three-dimensional imaging. However, owning to limitations of the aircraft platform and actual conditions, resolution improvement is difficult in ...
Zhao Yi-chao, Zhu Yu-tao, Su Yi, Yang Meng   +3 more
doaj   +1 more source

Multi-Step Knowledge-Aided Iterative ESPRIT for Direction Finding

, 2018
In this work, we propose a subspace-based algorithm for DOA estimation which iteratively reduces the disturbance factors of the estimated data covariance matrix and incorporates prior knowledge which is gradually obtained on line.
de Lamare, R. C., Pinto, S. F. B.
core   +1 more source

Two-dimensional virtual ESPRIT algorithm

Electronics Letters, 2001
A novel two-dimensional ESPRIT algorithm-two-dimensional virtual ESPRIT algorithm-based on a special sensor array geometry is proposed. The new algorithm achieves very accurate estimates at very low computational cost since the estimation accuracy can be improved by adjusting the array aperture.
openaire   +1 more source

Integration of Micro‐CT and XRF Mapping for Multimodal 3D Analysis of Polychrome Wooden Artifacts

X-Ray Spectrometry, EarlyView.
ABSTRACT Over the past 5 years, computer applications have become crucial to archeological research. Since the 1990s, the focus has transitioned from data management tools to the development of virtual models. Recently, digital documentation of cultural heritage has gained considerable focus, with 3D modeling of objects.
Josiane E. Cavalcante, Olga Araujo, Alessandra Machado, Roberta M. P. S. Borges, Isis V. N. S. Franzi, Anderson G. de Paula, Roberta Leitão, Marcelino dos Anjos, Renato Freitas, Ricardo T. Lopes, Davi F. Oliveira   +10 more
wiley   +1 more source

Reconstructed Target Range Profile via Unitary ESPRIT Superresolution Algorithm

International Journal of Antennas and Propagation, 2017
We propose an efficient technique for target classification using one-dimensional high resolution range profile (HRRP). The proposed technique utilizes the unitary estimation of signal parameters via rotational invariance techniques (ESPRIT) algorithm to
Rui Zhang, Min Zhang, Xin Wang, Zhaohui Cai   +3 more
doaj   +1 more source

A reduced-complexity and asymptotically efficient time-delay estimator [PDF]

, 2000
This paper considers the problem of estimating the time delays of multiple replicas of a known signal received by an array of antennas. Under the assumptions that the noise and co-channel interference (CCI) are spatially colored Gaussian processes and ...
Astély, D, Fernández Rubio, Juan Antonio, Seco Granados, Gonzalo, Swindlehurst, A L   +3 more
core   +1 more source

How Does Heterogeneity Control Strain Localization Patterns in High‐Porosity Rocks?

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract We aim to explore how heterogeneous porosity and grain size contribute to strain localization patterns in highly porous rocks based on phase‐field simulations. The strain localization patterns, including shear bands, dilatation bands, and compaction bands, are commonly observed in geological field studies and laboratory experiments.
Yunteng Wang, Chi Zhang, Philipp Braun, Xuan Kang, Wei Wu   +4 more
wiley   +1 more source

Direction of Arrival Estimation Accuracy Enhancement via Using Displacement Invariance Technique

International Journal of Antennas and Propagation, 2015
A new algorithm for improving Direction of Arrival Estimation (DOAE) accuracy has been carried out. Two contributions are introduced. First, Doppler frequency shift that resulted from the target movement is estimated using the displacement invariance ...
Youssef Fayad, Caiyun Wang, Qunsheng Cao, Alaa El-Din Sayed Hafez   +3 more
doaj   +1 more source