Results 81 to 90 of about 3,485 (183)

Random Lie bracket on sl2(Fp)

Random Structures &Algorithms, Volume 68, Issue 1, January 2026.
ABSTRACT We study a random walk on the Lie algebra sl2(Fp)$$ {\mathfrak{sl}}_2\left({\mathbf{F}}_p\right) $$ where new elements are produced by randomly applying adjoint operators of two generators. Focusing on the generic case where the generators are selected at random, we analyze the limiting distribution of the random walk and the speed at which it
Urban Jezernik, Matevž Miščič
wiley   +1 more source

Reinforcement Learning for Robust Modulation Classification in Non‐Orthogonal Multiple Access (NOMA) Systems

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper proposes a reinforcement learning–based framework for robust modulation classification and resource management in non‐orthogonal multiple access (NOMA) systems. By integrating Q‐learning, deep reinforcement learning, and proximal policy optimisation, the approach enhances spectral efficiency, mitigates interference, and improves ...
Mohammed M. Alammar, Abdulrahman Al Ayidh, Muneer Parayangat, Mohamed Abd Elhamid Abbas   +3 more
wiley   +1 more source

Decentralised and Centralised Fixed Structure H∞ Robust Loop Shaping for the MIMO Microsurgical Manipulation Based on PSOGSA

IET Control Theory &Applications, Volume 20, Issue 1, January/December 2026.
This paper presents a robust H∞ decentralised and centralised control approach for a microsurgical manipulator using Particle Swarm Optimisation and Gravitational Search Algorithm (PSOGSA). The proposed fixed‐structure Proportional‐Integral‐Derivative (PID)‐based controllers address implementation challenges of conventional high‐order H∞ controllers ...
Somyot Kaitwanidvilai, Poom Konghuayrob, Hisayuki Aoyama   +2 more
wiley   +1 more source

A Novel Noncircular MUSIC Algorithm Based on the Concept of the Difference and Sum Coarray

Sensors, 2018
In this paper, we propose a vectorized noncircular MUSIC (VNCM) algorithm based on the concept of the coarray, which can construct the difference and sum (diff–sum) coarray, for direction finding of the noncircular (NC) quasi-stationary sources ...
Zhenhong Chen, Yingtao Ding, Shiwei Ren, Zhiming Chen   +3 more
doaj   +1 more source

Coefficients of Sylvester's Denumerant [PDF]

, 2013
For a given sequence $\mathbf{\alpha} = [\alpha_1,\alpha_2,\dots,\alpha_{N+1}]$ of $N+1$ positive integers, we consider the combinatorial function $E(\mathbf{\alpha})(t)$ that counts the nonnegative integer solutions of the equation $\alpha_1x_1+\alpha_2
Baldoni, Velleda, Berline, Nicole, De Loera, Jesús, Dutra, Brandon, Köppe, Matthias, Vergne, Michèle   +5 more
core   +3 more sources

Optimal Designs of k‐Coincidence Wide‐Gap Frequency‐Hopping Sequence Sets

Electronics Letters, Volume 62, Issue 1, January/December 2026.
As a specific type of FHS, k$k$‐coincidence FHS sets enable their application in synchronous detection across numerous engineering fields due to their optimal self‐synchronization property. k‐coincidence uniform special FHS sets that possess wide‐gap and uniform properties contribute to enhancing the reliability and security of application systems ...
Changyuan Wang, Yi Zhang, Wan'an Yang
wiley   +1 more source

Novel coprime MIMO configurations for DOA estimation with increased degrees of freedom

Franklin Open
In this work, we propose some coprime multiple input multiple output (MIMO) configurations for direction-of-arrival (DOA) estimation, which achieve more degrees of freedom (DOF) than all the existing coprime MIMO configurations. We know that in a coprime
Rajen Kumar Patra, Anindya Sundar Dhar
doaj   +1 more source

Remarks on Quantum Modular Exponentiation and Some Experimental Demonstrations of Shor's Algorithm [PDF]

, 2014
An efficient quantum modular exponentiation method is indispensible for Shor's factoring algorithm. But we find that all descriptions presented by Shor, Nielsen and Chuang, Markov and Saeedi, et al., are flawed.
Cao, Zhenfu, Cao, Zhengjun, Liu, Lihua
core   +1 more source

Radar Emitter Identification Based on Typical Parameter Sequence: HBNP Clustering, Hierarchical Denoising and LSTM Classification

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
To address “high‐density interference” and “multi‐mode parameter agility” in Radar Emitter Identification (REI), as well as existing models' flaws (pulse sequence models' weak anti‐noise ability, statistical feature models' multi‐mode confusion), this paper proposes a TPS‐based REI method–constructing a three‐level signal model and PRI probability ...
Chen‐Qian Zhao, Hong‐Lei Qin, Rong‐Ling Lang   +2 more
wiley   +1 more source

Optimal Sparse Array Design Against Desired Signal DOA Mismatch for Robust Adaptive Beamforming

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
The performance of the adaptive beamformer is not only related to the array weight but also influenced by the array structure. Different sparse array configurations exhibit varying sensitivities to uncertainties in the signal direction of arrival (DOA).
Weinian Li, Lichun Li, Chaoyue Song, Zhengyang Xu, Jingna Jiao, Wenbo Zhang   +5 more
wiley   +1 more source