中文
相关论文

相关论文: A genetic algorithm based superdirective beamformi…

200 篇论文

The modern aerodynamic optimization has a strong demand for parametric methods with high levels of intuitiveness, flexibility, and representative accuracy, which cannot be fully achieved through traditional airfoil parametric techniques. In…

流体动力学 · 物理学 2023-05-08 Hairun Xie , Jing Wang , Miao Zhang

Multicast beamforming is a promising technique for multicast communication. Providing an efficient and powerful beamforming design algorithm is a crucial issue because multicast beamforming problems such as a max-min-fair problem are…

信息论 · 计算机科学 2020-04-21 Satoshi Takabe , Tadashi Wadayama

In wideband near-field arrays, frequency-dependent array responses cause wavefronts at different frequencies to deviate from that at the center frequency, producing beam squint and degrading multi-user performance. True-time-delay (TTD)…

信号处理 · 电气工程与系统科学 2025-11-12 Cixiao Zhang , Yin Xu , Xinghao Guo , Xiaowu Ou , Dazhi He , Wenjun Zhang

We introduce genetic algorithms as a means to analyze supernovae type Ia data and extract model-independent constraints on the evolution of the Dark Energy equation of state. Specifically, we will give a brief introduction to the genetic…

宇宙学与河外天体物理 · 物理学 2010-01-15 C. Bogdanos , Savvas Nesseris

Hybrid beamforming is a promising technology to improve the energy efficiency of massive MIMO systems. In particular, subarray hybrid beamforming can further decrease power consumption by reducing the number of phase-shifters. However,…

信息论 · 计算机科学 2022-08-11 Hamed Hojatian , Jérémy Nadal , Jean-François Frigon , François Leduc-Primeau

The research community continues to seek increasingly more advanced synthetic data generators to reliably evaluate the strengths and limitations of machine learning methods. This work aims to increase the availability of datasets…

机器学习 · 计算机科学 2026-01-30 Joanna Komorniczak

We propose a genetic algorithm powered evolution (GAPE) method to create deep learning solutions for energy and position estimation for reactor antineutrino interactions in the Precision Reactor Oscillation and Spectrum Experiment…

Finding a globally optimal Bayesian Network using exhaustive search is a problem with super-exponential complexity, which severely restricts the number of variables that it can work for. We implement a dynamic programming based algorithm…

人工智能 · 计算机科学 2022-07-19 Nand Sharma , Joshua Millstein

Millimeter-scale implants using ultrasound for power and communication have been proposed for a range of deep-tissue applications, including neural recording and stimulation. However, published implementations have shown high sensitivity to…

系统与控制 · 电气工程与系统科学 2022-12-02 Braeden C. Benedict , Mohammad Meraj Ghanbari , Rikky Muller

In the phased-array radar (PAR) signals from each antenna are transmitted at the same carrier frequency, which yields narrowly focused only angle dependent beampattern. In contrast, in the frequency-diverse-array (FDA) radar signals from…

信号处理 · 电气工程与系统科学 2020-06-24 Muhammad Zubair , Sajid Ahmed , Mohamed-Slim Alouini

A Rayleigh fading spatially correlated broadcast setting with M = 2 antennas at the transmitter and two-users (each with a single antenna) is considered. It is assumed that the users have perfect channel information about their links…

信息论 · 计算机科学 2016-11-15 Vasanthan Raghavan , Stephen Hanly , Venugopal Veeravalli

Distributed transmit beamforming is a technique that adjusts the signals from cooperating radios to combine coherently at a destination radio. To achieve coherent combining, the radios can exchange preambles with the destination for…

信号处理 · 电气工程与系统科学 2022-05-11 Samer Hanna , Danijela Cabric

This study proposes a data condensation method for multivariate kernel density estimation by genetic algorithm. First, our proposed algorithm generates multiple subsamples of a given size with replacement from the original sample. The…

统计方法学 · 统计学 2022-03-04 Kiheiji Nishida

Multiple antenna techniques, that allow energy beamforming, have been looked upon as a possible candidate for increasing the efficiency of the transfer process between the energy transmitter (ET) and the energy receiver (ER) in wireless…

信号处理 · 电气工程与系统科学 2017-12-12 Samith Abeywickrama , Tharaka Samarasinghe , Chin Keong Ho

The upper bound on antenna gain is expressed as a sum of lossy characteristic modes, specifically, as a sum of characteristic far fields squared. The procedure combines the favorable properties of Harrington's classical approach to maximum…

应用物理 · 物理学 2023-12-25 Miloslav Capek , Lukas Jelinek

Historically, the design of antenna arrays has evolved separately from Shannon theory. Shannon theory adopts a probabilistic approach in the design of communication systems, while antenna design approaches have relied on deterministic…

For various optimization methods, gradient descent-based algorithms can achieve outstanding performance and have been widely used in various tasks. Among those commonly used algorithms, ADAM owns many advantages such as fast convergence…

神经与进化计算 · 计算机科学 2021-05-05 Jiyang Bai , Yuxiang Ren , Jiawei Zhang

Complete absorption of electromagnetic waves is paramount in today's applications, ranging from photovoltaics to cross-talk prevention into sensitive devices. In this context, we use a genetic algorithm (GA) strategy to optimize absorption…

This study introduces an innovative beamforming design approach that incorporates the reliability of antenna array elements into the optimization process, termed "antenna health-aware selective beamforming". This method strategically…

信号处理 · 电气工程与系统科学 2024-12-25 Anis Hamadouche , Tharm Ratnarajah , Christos Masouros , John Thompson , Mathini Sellathurai

This paper addresses the optimization challenges in Ultra-Massive MIMO communication systems, focusing on array selection and beamforming in dynamic and diverse operational contexts. We introduce a novel array selection criterion that…

信号处理 · 电气工程与系统科学 2025-04-28 Anis Hamadouche , Mathini Sellathurai