Results 11 to 20 of about 9,637 (317)

Unambiguous 1-Uniform Morphisms [PDF]

open access: yesTheoretical Computer Science, 2011
A morphism h is unambiguous with respect to a word w if there is no other morphism g that maps w to the same image as h. In the present paper we study the question of whether, for any given word, there exists an unambiguous 1-uniform morphism, i.e., a ...
A. Mateescu   +17 more
core   +7 more sources

Terminology of the aerospace industry: systemic and structural features

open access: yesВестник Самарского университета: История, педагогика, филология, 2023
This article presents an attempt to describe systemic and structural features of contemporary English-language aerospace terminology. Relevance of this terminological system study is determined by rapid development of aerospace industry.
O. Yu. Ivanchina
doaj   +1 more source

Research of the possibility of increasing the uniqueness of determining the time delay of the phase-code shift keyed signal in a correlation meter on the basis of FPGA

open access: yesФизика волновых процессов и радиотехнические системы, 2023
Background. In radar systems, phase code-domain keying signals are widely used. Continuous signals of this kind have the advantage of low side lobes of the cross-correlation function and high noise immunity, but have limitations on the size of the area ...
Alexey V. Shirkaev, Andrey V. Nazarov
doaj   +1 more source

UNAMBIGUOUS CONSTRAINED AUTOMATA [PDF]

open access: yesInternational Journal of Foundations of Computer Science, 2012
The class of languages captured by Constrained Automata (CA) that are unambiguous is shown to possess more closure properties than the provably weaker class captured by deterministic CA. Problems decidable for deterministic CA are nonetheless shown to remain decidable for unambiguous CA, and testing for regularity is added to this set of decidable ...
Cadilhac, Michaël   +2 more
openaire   +2 more sources

Deterministic recognizability of picture languages with Wang automata [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2010
special issue dedicated to the second edition of the conference AutoMathA: from Mathematics to ...
Violetta Lonati, Matteo Pradella
doaj   +1 more source

Azimuth Unambiguity Suppression for Low-oversampled Staggered SAR Images

open access: yesLeida xuebao, 2021
Low-oversampled staggered synthetic aperture radar can achieve continuously observed high-resolution and wide-swath imaging by utilizing the variable pulse repetition interval to distribute blind ranges.
Xingxing LIAO, Zhe LIU, Junjie WU
doaj   +1 more source

On the Power of Unambiguity in Büchi Complementation [PDF]

open access: yesInternational Symposium on Games, Automata, Logics and Formal Verification, 2020
In this work, we exploit the power of unambiguity for the complementation problem of Buchi automata by utilizing reduced run directed acyclic graphs (DAGs) over infinite words, in which each vertex has at most one predecessor.
Yong Li, Moshe Y. Vardi, Lijun Zhang
semanticscholar   +1 more source

Suppression of grating lobes for MMW sparse array setups [PDF]

open access: yesAdvances in Radio Science, 2011
For arrays the placement of the single elements determines the angular resolution and the unambiguity interval. The width of the total array determines the resolution capabilities.
S. Bertl, A. Kirschner, J. Detlefsen
doaj   +1 more source

Towards a Context-Free Machine Universal Grammar (CF-MUG) in Natural Language Processing

open access: yesIEEE Access, 2020
In natural language processing, semantic document exchange ensures unambiguity and shares the same meaning for documents sender and receiver cross different natural languages (e.g., English to Chinese), this difference makes the translation between ...
Quanyi Hu   +3 more
doaj   +1 more source

On the ambiguity function for accelerating target in FMCW radar

open access: yesJournal of Telecommunications and Information Technology, 2023
In the paper, we are concerned with FMCWradar detection of an accelerating target, echo of which is buried in an additive white Gaussian noise. We derive and analyze three-dimensional generalized ambiguity function for target range, velocity and ...
Rafał Rytel-Andrianik
doaj   +1 more source

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