Results 261 to 270 of about 9,980,026 (286)
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Some new almost difference sets via finite fields
ACM Communications in Computer Algebra, 2015Several investigations on antenna arrays focus on the “thinning” problem wherein one would like to reduce the number of array elements with respect to the original filled layouts. The rationale to do so is to economize costs, weight, consumption of power etc.
Bo Phillips, Jace Robinson
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MIMO radar array thinning using almost difference sets
2016 10th European Conference on Antennas and Propagation (EuCAP), 2016In this paper, minimum redundancy multiple-input multiple-output (MR-MIMO) arrays - a class of thinned antenna arrays - are discussed. The concepts of MR-MIMO array design and almost difference sets (ADSs) are introduced, and an analytical method based on ADSs is proposed for MR-MIMO array designs.
Jian Dong +3 more
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MIMO radar array thinning optimization exploiting almost difference sets
Optik, 2016Abstract Thinning techniques based on almost difference sets (ADSs) are presented to design MIMO radar antenna arrays with low peak sidelobe levels (PSLs). The standard ADS approach allows one to analytically determine the element locations of the transmitting and receiving arrays and estimate the upper bound of the radiation pattern sidelobes of ...
Jian Dong +3 more
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A new class of near-optimal partial Fourier codebooks from an almost difference set
Designs, Codes and Cryptography, 2012zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nam Yul Yu, Keqin Feng, Aixian Zhang
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New Constructions of Difference Set Pairs and Almost Difference Set Pairs
Advances in Applied Mathematics, 2022openaire +1 more source
Construction of binary almost perfect sequences based on extended cyclic difference sets
1998 International Zurich Seminar on Broadband Communications. Accessing, Transmission, Networking. Proceedings (Cat. No.98TH8277), 2002Sequences with noise-like characteristics are required for symbol synchronization, signal detection, signal estimation, spectrum spreading and secrecy coding. Periodic binary sequences exhibiting zero out-of-phase autocorrelation except one value in the middle are studied here. They are based mainly on cyclic difference sets D with parameters (v,k,/spl
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Projective Linear Codes From Some Almost Difference Sets
IEEE Transactions on Information Theory, 2023openaire +2 more sources
Almost periodic transformable difference systems
Applied Mathematics and Computation, 2012Michal Vesely, Petr Hasil
exaly

