Results 21 to 30 of about 650 (234)
Costas arrays searching algorithm based on vectors
, 2018 Costas arrays have been widely applied in wireless communication, radar and cryptography as they have the ideal auto-ambiguity properties. Costas arrays are constructed mostly using the algebraic method, or they can be found by exhaustive search.
Yao Jianguo, Zhu Dianhong
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Structural properties of Costas arrays
Advances in Mathematics of Communications, 2014 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jonathan Jedwab, Jane Wodlinger
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Sparse antenna arrays based on Costas arrays
Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics 2017, 2019 Valery Sorokovikov, Igor Anikin
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Two-dimensional patterns with distinct differences; constructions, bounds, and maximal anticodes [PDF]
, 2010 A two-dimensional (2-D) grid with dots is called a configuration with distinct differences if any two lines which connect two dots are distinct either in their length or in their slope.
Etzion, T. +3 more
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Wireless MIMO Systems Employing Joint Turbo-Like STBC Codes With Bit-Level Algebraically-Interleaved URSCs [PDF]
, 2013 In this paper, permutations constructed based on algebraic derivations which are of particular interests due to better error-rate performance as well as simpler and practical hardware implementations, have been used in designing high performance fully ...
Mehran, Farhad +3 more
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Multidimensional Costas Arrays and Their Enumeration Using GPUs and FPGAs [PDF]
, 2012 The enumeration of two-dimensional Costas arrays is a problem with factorial time complexity and has been solved for sizes up to 29 using computer clusters.
Rafael A. Arce-Nazario +1 more
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Primitive elements in finite fields and costas arrays [PDF]
Applicable Algebra in Engineering, Communication and Computing, 1991 This paper is concerned with the following four conjectures about the finite field \(\mathbb F_q\) which were made by \textit{S. W. Golomb} in 1984 [J. Comb. Theory, Ser. A 37, 13--21 (1984; Zbl 0547.05020)]. Conjecture A: If \(q>2\), then \(\mathbb F_q\) contains primitive elements \(\alpha\) and \(\beta\) with \(\alpha+\beta=1\). Conjecture B: If \(q>
Stephen D. Cohen, Gary L. Mullen
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Multidimensional Costas Arrays and Their Periodicity
, 2022 A novel higher-dimensional definition for Costas arrays is introduced. This definition works for arbitrary dimensions and avoids some limitations of previous definitions.
Torres, Jaziel, Rubio, Ivelisse
core
Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure
Advanced Engineering Materials, EarlyView.Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari +3 more
wiley +1 more source