Results 91 to 100 of about 3,462 (189)

Direct Position Determination of Non-Circular Sources Based on a Doppler-Extended Aperture With a Moving Coprime Array

open access: yesIEEE Access, 2018
Direct position determination (DPD) is a new promising technique in wireless location. Compared with conventional two-step localization methods, DPD achieves a higher accuracy by directly estimating the source location without computing the intermediate ...
Yan-Kui Zhang   +4 more
doaj   +1 more source

Improving performance of direction-of-arrival estimation using sparse array in passive radar

open access: yesJournal of Algorithms & Computational Technology, 2020
A method based on sparse array is applied to direction-of-arrival estimation of passive radar in this paper to increase the number of resolvable sources and improve the direction-of-arrival estimation performance for coprime array.
Geng Chen   +3 more
doaj   +1 more source

Clustering words

open access: yes, 2012
We characterize words which cluster under the Burrows-Wheeler transform as those words $w$ such that $ww$ occurs in a trajectory of an interval exchange transformation, and build examples of clustering ...
Ferenczi, Sébastien, Zamboni, Luca Q.
core   +1 more source

Low-Complexity DOA Estimation Method Based on Joined Coprime Array

open access: yesJournal of Telecommunications and Information Technology
In this article, the elimination of ambiguity of a joined coprime array has been examined, with a focus on such of its properties as large aperture size and complete degree of freedom (DOF).
Fatimah Salman, Bayan Sabbar
doaj   +1 more source

SAR 3D sparse imaging based on CLA

open access: yesThe Journal of Engineering, 2019
A novel method for synthetic aperture radar (SAR) three-dimensional (3D) sparse imaging based on a coprime linear array (CLA) is proposed. To reduce the geometric resolution loss caused by under-sampled sparse SAR, a jointed sparse imaging approach is ...
Bokun Tian   +4 more
doaj   +1 more source

COPRIME ARRAYS WITH ENHANCED DEGREES OF FREEDOM

open access: yesAnadolu University Journal of Science and Technology-A Applied Sciences and Engineering, 2018
Coprime array geometries provide robust performance for direction-of-arrival estimation problem with more sources than sensor elements. In previous works it is shown that K source directions can be resolved using only 2M + N -1 sensor elements where K is less than or equal to MN.
openaire   +3 more sources

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