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仿驾驶员DDPG汽车纵向自动驾驶决策方法 被引量:14
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作者 高振海 闫相同 +1 位作者 高菲 孙天骏 《汽车工程》 EI CSCD 北大核心 2021年第12期1737-1744,共8页
汽车纵向自动驾驶的决策层根据车辆当前运动状态与环境信息,决策出理想的动作指令。目前如何在自动驾驶决策策略中考虑人类驾驶员的行为成为研究热点。在纵向自动驾驶决策策略中传统的基于规则的决策策略难以运用到复杂的场景中,而当前... 汽车纵向自动驾驶的决策层根据车辆当前运动状态与环境信息,决策出理想的动作指令。目前如何在自动驾驶决策策略中考虑人类驾驶员的行为成为研究热点。在纵向自动驾驶决策策略中传统的基于规则的决策策略难以运用到复杂的场景中,而当前使用强化学习和深度强化学习的决策方法大多通过设计安全性、舒适性、经济性相关公式构建奖励函数,得到的决策策略与人类驾驶员相比仍然存在较大差距。针对以上问题,本文使用驾驶员数据通过BP神经网络拟合设计奖励函数,使用深度强化学习DDPG算法,建立了一种仿驾驶员的纵向自动驾驶决策方法。最终通过仿真测试验证了该方法的有效性和与驾驶员行为的一致性。 展开更多
关键词 自动驾驶 决策算法 深度强化学习 深度确定性策略梯度
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基于Licel记录仪的激光雷达数据修正技术研究 被引量:3
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作者 高飞 周毅 +2 位作者 黄波 王萌 华灯鑫 《西安理工大学学报》 CAS 北大核心 2018年第2期147-152,共6页
作为重要的大气遥感探测仪器,激光雷达在气候和环境监测中扮演越来越重要的角色。Licel数据记录仪是专门针对激光雷达所开发的数据采集仪器,可同时提供模拟探测和光子计数探测模式的数据采集。针对激光雷达模拟数据和光子计数数据的特点... 作为重要的大气遥感探测仪器,激光雷达在气候和环境监测中扮演越来越重要的角色。Licel数据记录仪是专门针对激光雷达所开发的数据采集仪器,可同时提供模拟探测和光子计数探测模式的数据采集。针对激光雷达模拟数据和光子计数数据的特点,开展了光子计数数据的死区时间校正、模拟数据和光子计数数据的拼接拟合以及二者数据廓线错位的修正技术研究。结果表明,修正后的激光雷达回波具有更高的信噪比和位置精度,能更清晰地归一化表达大气状态信息的变化。 展开更多
关键词 激光雷达 Licel数据记录仪 模拟数据 光子计数数据 数据修正
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减少乙烯装置碱洗塔黄油的技术进展 被引量:1
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作者 胡清 高飞 +3 位作者 马会霞 胡雪生 李应文 李玮 《石化技术》 CAS 2020年第11期119-121,共3页
乙烯装置碱洗塔的作用是脱除乙烯裂解气中的酸性气体,在运行过程中产生的黄油常导致设备堵塞并增加下游废碱液处理难度。本文针对碱洗塔黄油产生的原因及危害进行分析,总结碱洗塔内减少黄油的措施,展望了黄油处理的发展方向。
关键词 裂解气 碱洗塔 黄油
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习近平关于调查研究重要论述的科学内涵与实践路径
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作者 高飞 陈朋 《理论视野》 CSSCI 2024年第5期33-39,共7页
习近平关于调查研究重要论述呈现出“调查研究的科学内涵是什么、调查研究体系如何构成、以什么方略路径来开展调查研究”的逻辑理路。在科学内涵上,作为一项基本功,调查研究是中国共产党人发现问题、认识问题和解决问题的传家宝。在体... 习近平关于调查研究重要论述呈现出“调查研究的科学内涵是什么、调查研究体系如何构成、以什么方略路径来开展调查研究”的逻辑理路。在科学内涵上,作为一项基本功,调查研究是中国共产党人发现问题、认识问题和解决问题的传家宝。在体系构成上,它体现出科学完备的调查研究理论体系、规范严密的调查研究制度体系、有效管用的调查研究方法体系、行之有效的干部调查研究工作能力体系。在实践路径上,则应坚持党的领导,健全党员干部带头机制;坚持人民至上,走好群众路线;坚持实事求是,强化问题导向;坚持系统观念,应用科学方法;坚持目标原则,注重成果转化运用。 展开更多
关键词 调查研究 重要论述 方法论
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COLORED NOISE PREDICTION BASED ON NEURAL NETWORK
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作者 gaofei ZhangXiaohui 《Journal of Electronics(China)》 2003年第4期249-254,共6页
A method for predicting colored noise by introducing prediction of nonlinear time series is presented. By adopting three kinds of neural networks prediction models, the colored noise prediction is studied through chan... A method for predicting colored noise by introducing prediction of nonlinear time series is presented. By adopting three kinds of neural networks prediction models, the colored noise prediction is studied through changing the filter bandwidth for stochastic noise and the sampling rate for colored noise. The results show that colored noise can be predicted. The prediction error decreases with the increasing of the sampling rate or the narrowing of the filter bandwidth. If the parameters are selected properly, the prediction precision can meet the requirement of engineering implementation. The results offer a new reference way for increasing the ability for detecting weak signal in signal processing system. 展开更多
关键词 Nonlinear prediction Colored noise Time series Neural network
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Observation on the Effect of Giant Needling Combined with Warm Acupuncture on Knee Osteoarthritis of Cold Dampness Obstruction Type
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作者 TIANYajie LUWenjiao +2 位作者 gaofei SUNYuwei YAOLina 《外文科技期刊数据库(文摘版)医药卫生》 2022年第9期183-187,共5页
Objective: to investigate the clinical situation of giant acupuncture in the treatment of osteoarthritis of the knee joint with cold and wet paralysis. Methods: a total of 80 patients with osteoarthritis of the knee w... Objective: to investigate the clinical situation of giant acupuncture in the treatment of osteoarthritis of the knee joint with cold and wet paralysis. Methods: a total of 80 patients with osteoarthritis of the knee with cold and wet paralysis were selected and randomly divided into a control group (ordinary acupuncture Method therapy) and treatment group (giant acupuncture acupuncture treatment), 40 cases each, compared clinical efficacy. Results: after treatment, the clinical treatment effect of the experimental group was significantly better than that of the control group, and the improvement of pain and functional recovery were significantly better than that of the control group (P0.05). Conclusion: the implementation of giant acupuncture treatment for patients with cold and wet paralysis-resistant knee osteoarthritis can better improve the patients disease status, promote the recovery of patients knee joint function, and enable patients to obtain a relatively high-quality prognosis, with high treatment safety, which can be further popularized. 展开更多
关键词 giant stab warm acupuncture cold and wet paralysis osteoarthritis of the knee joint
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Exploration and Practice of Innovative Talents Training Mode under the New Engineering Background —— Take Hebei University of Engineering as an Example
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作者 LIUXiaoyan gaofei +2 位作者 LIANGShunxing HUANGGuangwei LIUHongji 《外文科技期刊数据库(文摘版)教育科学》 2022年第8期068-071,共4页
Under the background of new engineering, it is imperative to reform the training mode of traditional professionals of materials. Hebei University of Engineering has designed a "four-in-one" training mode whi... Under the background of new engineering, it is imperative to reform the training mode of traditional professionals of materials. Hebei University of Engineering has designed a "four-in-one" training mode which is based on experiment and curriculum design and practice, and promoted by innovative practice of metal materials and innovative research team. It strengthens students professional education and comprehensive quality training, vigorously promotes the leap-forward development of quality education and focuses on strengthening the cultivation of college students innovative spirit, practical ability and entrepreneurial consciousness. 展开更多
关键词 new engineering material specialty practice innovative talent
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Quantum Key Distribution Based on Entangled States and Non-Orthogonal States 被引量:3
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作者 gaofei WENQiao-yan ZHUFu-chen 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2004年第4期33-36,共4页
In this paper two Quantum Key Distribution(QKD)protocols are proposed,which combined BB84 protocoland EPR protocol subtly.In our protocols,entangled particles and non-orthogonal particles are mixed together and trans-... In this paper two Quantum Key Distribution(QKD)protocols are proposed,which combined BB84 protocoland EPR protocol subtly.In our protocols,entangled particles and non-orthogonal particles are mixed together and trans-mitted in the quantum channel.They play different roles respectively,and their physical characters are fully exploited.As a result,the efficiency of QKD is improved and identity authentication is added to the QKD procedure. 展开更多
关键词 QKD quantum authentication quantum cryptography
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Improved Ternary-tree Algorithm for Contention Resolution over Random Multi-access Channel
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作者 gaofei ZHAODong-feng 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2001年第2期35-39,共5页
This paper studies the tree based contention resolution algorithm over a random multi access channel, and proposes a new algorithm model which is named Improved Ternary tree Algorithm( ITA ). The channel throughp... This paper studies the tree based contention resolution algorithm over a random multi access channel, and proposes a new algorithm model which is named Improved Ternary tree Algorithm( ITA ). The channel throughput over blocked access reaches 0 422. The analytical expression and computer simulation results indicate that the performance of ITA is better than the basic binary and ternary tree algorithm. 展开更多
关键词 contention resolution tree based algorithms mean slot length THROUGHPUT blocked access
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