Research on Reservoir Prediction Automatic Optimization Model Based on Seismic Data [PDF]
, 2017 地震数据中蕴含着丰富的有关地下的地质构造、底层岩性和流体物性等信息，是储层预测的数据基础。但随着我国油气勘探开发的水平越来越高和勘探领域的不断延伸，地震属性数量和种类膨胀式增长，储层预测难度增大。数据挖掘是一种有效进行储层预测手段。本文基于数据挖掘中的特征降维方法和聚类分析构造了储层预测模型。 基于数据挖掘的储层预测模型在实际使用中经常需要人工设置参数。如果使用者不了解数据挖掘技术，设置参数是一个困难的事。储层预测模型参数选择的好坏对其预测结果有很大影响。储层预测模型一般会有多个参数 ...
鲍彬彬
core
Research on Fault Location in Integrated Energy Systems Based on Improved Binary Particle Swarm Optimization Algorithm [PDF]
ObjectivesThe coverage of power systems continues to expand, and the structure of integrated energy systems is becoming increasingly complex. This trend leads to a significant decline in the accuracy of fault location in the distribution network that is ...
GAO Yang +5 more
core +1 more source
Parameters Optimization of Robot Arm PID Controllers Based on PSO Algorithm [PDF]
, 2011 机械臂的工作环境复杂,对其工作的响应指标要求较高。PId控制受限于机械臂的数学模型的复杂性与不精确性,导致经典的参数整定方法在实际生产中适应性不良或性能欠佳。文章基于MATlAb/SIMulInk将PSO算法(粒子群优化算法)用于机械臂PId控制器的参数优化中,通过对3关节连杆机械臂单次拉伸动作的建模仿真研究,结果表明:使用此方法后,机械臂各关节响应的调节时间和超调量都得到明显的优化。The robot arm always runs in a complex condition,and the ...
兰维瑶, 刘东, 喻骁
core
Contact plan design based on bi-directional particle swarm optimization in satellite network [PDF]
, 2019 Aiming at the problems of time-varying topology,intermittent connection,and constrained resource in satellite network,a contact plan design (CPD) scheme based on bi-directional particle optimization (BPSO) algorithm was proposed.Firstly,the task-based ...
Cuiqin DAI, Huang TANG, Linfeng GUO
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Dianci bileiqi, 2015 为提高接地网故障诊断的准确性和效率,在总结现有故障诊断方法基础上,提出基于萤火虫-粒子群混合算法（GPSO）的分区域诊断方法。该方法通过优化接地网故障诊断方程组模型,使之转化为等价的优化问题;根据接地网的可及节点分布情况对接地网分区,应用分层约简理论将接地网分解得到本征接地网络;对本征接地网建立优化模型,采用萤火虫-粒子群混合算法对优化问题进行求解;根据本征支路电阻的前后变化以及每条支路对应的接地网区域,分析判断接地网各个区域内的故障情况。该方法综合利用萤火虫算法的寻优能力和粒子群算法的收敛速度 ...
蓝文昊 +5 more
doaj
The Research of Digital Predistortion for Multiband Broadband Wireless Communication System [PDF]
, 2013 现代无线通信技术迅猛发展，频谱资源日益短缺。为了提高频谱效率，现代通信系统广泛采用高阶调制方式和多载波传输方式。但是这些非恒定包络调制的信号往往拥有高峰均比，严重影响功放效率。数字预失真技术是目前常用的一种功率放大器线性化技术，可有效补偿功放非线性失真。本文考虑多波段宽带数字预失真的实现，区别于传统的单一波段预失真，同时考虑信号的带内失真和带外失真，对谐波失真和三阶互调失真分别进行建模和补偿。 本文第一种抑制谐波的多波段预失真系统的优点在于可以同时抑制载波频率上的带内失真和谐波频率上的带外失真 ...
许沄
core
DGA malicious domain name identification based on XGBoost and particle swarm optimization algorithm [PDF]
Domain generation algorithms (DGA) have become a common method of network attacks. To enhance the detection capability for DGA malicious domains, a method for malicious domain identification based on XGBoost and particle swarm optimization (PSO ...
CHEN Weijie +3 more
core +1 more source
Multi-values discrete particle swarm optimization for cross layer resource allocation in cooperative OFDMA systems [PDF]
, 2014 The resource allocation problem in cooperative OFDMA systems with mobile stations (MS) on multi-services was investigated. In order to maximize the sum utility of all MS under per-relay power constraint(PPC), an asymptotic optimal resource allocation ...
Chun-lin XIONG +4 more
core +1 more source
Gaoya dianqi, 2012 为了提高电力变压器故障诊断的准确性,采用了一种自适应变异粒子群优化神经网络的方法,用于BP网络的权值优化。并根据变压器的故障特征,用优化好的BP网络进行故障诊断。该算法修正了粒子个体行动,克服了标准粒子群和BP网络易陷入局部极小的问题。实例仿真结果表明,该方法具有较好的分类效果,具有一定的实用性。
程加堂, 熊伟, 徐绍坤, 艾莉
doaj
An Adaptive LSTM Method for Parameter Calibration of Medical Robotic Arms [PDF]
Medical robotic arm often encounters multi-source and nonlinear errors during the calibration process, making it difficult for traditional mathematical modeling methods to fully characterize system error features, thereby limiting further improvement in ...
Lukai JIN, Wei HONG
core +1 more source