To overcome the resolution limitations of conventional array topologies and non-synchronous measurement (NSM), the extended symmetric coprime and symmetric nested planar arrays with high-performance difference co-array are designed. A localization method
Dong Lv +5 more
semanticscholar +1 more source
The dimension of well approximable numbers
Abstract In this survey article, we explore a central theme in Diophantine approximation inspired by a celebrated result of Besicovitch on the Hausdorff dimension of well approximable real numbers. We outline some of the key developments stemming from Besicovitch's result, with a focus on the mass transference principle, ubiquity and Diophantine ...
Victor Beresnevich, Sanju Velani
wiley +1 more source
Siegel–Veech constants for cyclic covers of generic translation surfaces
Abstract We compute the asymptotic number of cylinders, weighted by their area to any nonnegative power, on any cyclic branched cover of any generic translation surface in any stratum. Our formulae depend only on topological invariants of the cover and number‐theoretic properties of the degree: in particular, the ratio of the related Siegel–Veech ...
David Aulicino +4 more
wiley +1 more source
One‐level densities in families of Grössencharakters associated to CM elliptic curves
Abstract We study the low‐lying zeros of a family of L$L$‐functions attached to the complex multiplication elliptic curve Ed:y2=x3−dx$E_d \;:\; y^2 = x^3 - dx$, for each odd and square‐free integer d$d$. Specifically, upon writing the L$L$‐function of Ed$E_d$ as L(s−12,ξd)$L(s-\frac{1}{2}, \xi _d)$ for the appropriate Grössencharakter ξd$\xi _d$ of ...
Chantal David, Lucile Devin, Ezra Waxman
wiley +1 more source
Iitaka fibrations and integral points: A family of arbitrarily polarized spherical threefolds
Abstract Studying Manin's program for a family of spherical log Fano threefolds, we determine the asymptotic number of integral points whose height associated with an arbitrary ample line bundle is bounded. This confirms a recent conjecture by Santens and sheds new light on the logarithmic analog of Iitaka fibrations, which have not yet been adequately
Ulrich Derenthal, Florian Wilsch
wiley +1 more source
Robust Adaptive Beamforming Algorithm for Sparse Subarray Antenna Array Based on Hierarchical Weighting. [PDF]
Yang J, Liu X, Tu Y, Li W.
europepmc +1 more source
Computationally Efficient Direction-of-Arrival Estimation Algorithms for a Cubic Coprime Array. [PDF]
Gong P, Chen X.
europepmc +1 more source
Het volgen van meerdere objecten met behulp van een digitale bundelvormingsantenne ,, ,,
The technique of using multiple antennas or an antenna array, is well-known to provide spatial diversity in a wireless communication system. Exploiting the phase information of the received signals from all elements of the antenna array enables the ...
Xu, Hantao
core
A Computationally Efficient and Virtualization-Free Two-Dimensional DOA Estimation Method for Nested Planar Array: RD-Root-MUSIC Algorithm. [PDF]
Han S, Lai X, Zhang Y, Zhang X.
europepmc +1 more source
An L-Shaped Three-Level and Single Common Element Sparse Sensor Array for 2-D DOA Estimation. [PDF]
Du B, Cui W, Ba B, Xu H, Gao W.
europepmc +1 more source

