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国土空间背景下的朝阳市生态安全格局规划

沈阳建筑大学学报（社会科学版） 2024年第2期26卷 179-184页

作者：付士磊罗重骥沈阳建筑大学建筑与规划学院辽宁沈阳110168

构建生态安全格局可为国土空间规划提供全域生态问题分析和解决对策,弥补现有国土空间生态规划的不足。以朝阳市为例,在国土空间规划的大背景下,基于景观联通性理论、最小累计阻力模型及电路理论等相关理论模型提取生态源地、生态阻力... 详细信息

构建生态安全格局可为国土空间规划提供全域生态问题分析和解决对策,弥补现有国土空间生态规划的不足。以朝阳市为例,在国土空间规划的大背景下,基于景观联通性理论、最小累计阻力模型及电路理论等相关理论模型提取生态源地、生态阻力面、生态廊道和生态夹点,构建了朝阳市“一轴两带、东西两屏、五心多点”总体生态安全格局。通过对朝阳市生态安全格局的构建,体现了山水林田湖草生命共同体思想,突出了不同生态要素之间的联系,为同类城市的国土空间规划提供了支撑。

关键词：生态安全格局国土空间生态规划朝阳市

Reciprocal translation between SAR and optical remote sensing images with cascaded-residual adversarial networks

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Science China(Information Sciences) 2021年第2期64卷 154-168页

作者： shilei fu Feng XU Ya-Qiu JIN Key Lab for Information Science of Electromagnetic Waves (MoE) Fudan University

Despite the advantages of all-weather and all-day high-resolution imaging, synthetic aperture radar(SAR) images are much less viewed and used by general people because human vision is not adapted to microwave scattering phenomenon. However, expert interpreters can be trained by comparing side-byside SAR and optical images to learn the mapping rules from SAR to optical. This paper attempts to develop machine intelligence that is trainable with large-volume co-registered SAR and optical images to translate SAR images to optical version for assisted SAR image interpretation. Reciprocal SAR-optical image translation is a challenging task because it is a raw data translation between two physically very different sensing modalities. Inspired by recent progresses in image translation studies in computer vision,this paper tackles the problem of SAR-optical reciprocal translation with an adversarial network scheme where cascaded residual connections and hybrid L1-GAN loss are employed. It is trained and tested on both spaceborne Gaofen-3(GF-3) and airborne Uninhabited Airborne Vehicle Synthetic Aperture Radar(UAVSAR) images. Results are presented for datasets of different resolutions and polarizations and compared with other state-of-the-art methods. The Frechet inception distance(FID) is used to quantitatively evaluate the translation performance. The possibility of unsupervised learning with unpaired/unregistered SAR and optical images is also explored. Results show that the proposed translation network works well under many scenarios and it could potentially be used for assisted SAR interpretation.

关键词： synthetic aperture radar generative adversarial network (GAN) image translation cascaded residual connection Frechet inception distance

Urban Green Space Planning Based on Computational Fluid Dynamics Model and Landscape Ecology Principle:A Case Study of Liaoyang City,Northeast China

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Chinese Geographical Science 2011年第4期21卷 465-475页

作者： ZHOU Yuan SHI Tiemao HU Yuanman GAO Chang LIU Miao fu shilei WANG Shizhe State Key Laboratory of Forest and Soil Ecology Institute of Applied EcologyChinese Academy of SciencesShenyang 110164China Graduate University of Chinese Academy of Sciences Beijing 100049China School of Architecture and Urban Planning Shenyang Jianzhu UniversityShenyang 110168China

As a result of environmental degradation,urban green space has become a key issue for urban sustainable *** paper takes Liaoyang City in Northeast China as an example to develop green space planning using the computational fluid dynamics (CFD) model,landscape ecological principles and Geographical Information System (GIS).Based on the influencing factors of topography,building density and orientation,Shou Mountain,Longding Mountain and the Taizi River were selected as the urban ventilation paths to promote wind and oxygen *** concentration around the green spaces gradually decreased with wind speed increase and wind direction *** were obvious negative correlation relationships between the oxygen dispersion concentration and urban layout factors such as the building plot ratio and building *** with the field measurements found that there was significant correlation relationship between simulated oxygen concentration and field measurements (R 2=0.6415,p<0.001),moreover,simulation precision was higher than 92%,which indicated CFD model was effective for urban oxygen concentration *** less than 10% areas in Liaoyang City proper needed more green space urgently to improve oxygen concentration,mainly concentrated in Baitai and west Wensheng *** on land-scape ecology principle,green space planning at different spatial scales were proposed to create a green space network system for Liaoyang City,including features such as green wedges,green belts and ***,about 2012 ha of green space need to be constructed as oxygen sources and ventilation *** with the current green space pattern,proposed green space planning could improve oxygen concentration *** CFD model and research results in this paper could provide an effective way and theory support for sustainable development of urban green space.

关键词： green space computational fluid dynamics oxygen dispersion pattern landscape ecology Liaoyang City proper

国土空间规划体系下县域详细规划编制新路径探索与实践——以杭州市桐庐县为例

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城市建筑空间 2024年第3期31卷 96-99页

作者：罗莹顾子晖蓝祧彪拱雨晴付士磊沈阳建筑大学建筑与规划学院桐庐县规划与自然资源局详细规划科吉林建筑科技学院建筑与规划学院沈阳建筑大学生态规划与绿色建筑研究院

新时代国土空间规划体系重构,详细规划作为“全域统筹与共享共治”的重要载体,面临着全域覆盖难、实用性不足、刚性与弹性约束不协调等问题,以杭州市桐庐县详细规划编制为切入点,通过“一张底图”平台构建、厘清“3+X”底数、合理划分... 详细信息

新时代国土空间规划体系重构,详细规划作为“全域统筹与共享共治”的重要载体,面临着全域覆盖难、实用性不足、刚性与弹性约束不协调等问题,以杭州市桐庐县详细规划编制为切入点,通过“一张底图”平台构建、厘清“3+X”底数、合理划分规划编制层级、规划弹性与刚性管控结合等方式,增强县域详细规划的全域性、传导性、有效性、实用性,以促进城乡融合,为国土空间规划体系下县域详细规划的完善发展提供新思路。

关键词：国土空间规划体系详细规划规划编制

基于生态敏感性评价的临江市生态功能分区研究

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林业与生态科学 2024年第1期39卷 41-48,85页

作者：许世界付士磊沈阳建筑大学建筑与规划学院辽宁沈阳110168

为了保护临江市生态环境,促进临江市可持续发展,选取土地利用类型、土壤条件、降雨量地形起伏度、植被覆盖度和生态保护区6个敏感因子通过ArcGIS的空间分析技术对临江市生态敏感性进行研究评价。评价结果显示临江市整体生态敏感性较高,... 详细信息

为了保护临江市生态环境,促进临江市可持续发展,选取土地利用类型、土壤条件、降雨量地形起伏度、植被覆盖度和生态保护区6个敏感因子通过ArcGIS的空间分析技术对临江市生态敏感性进行研究评价。评价结果显示临江市整体生态敏感性较高,中敏感区占比最大,零散分布于临江市全域。基于生态敏感性评价结果,在保证村级行政边界完整的情况下,将临江市划分为5个不同功能类型的生态分区,并对各生态分区提出了不同的发展策略和管控措施,以期为此类生态环境良好、生态敏感性较高的区域制定空间保护策略提供参考依据,为推动生态文明建设奠定基础。

关键词：临江市生态敏感性生态功能分区 ArcGIS

城轨车用复合动力储能系统蓄电池SOC和SOH估计

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铁道科学与工程学报 2020年第11期17卷 2920-2928页

作者：郭佑民戴银娟付石磊兰州交通大学机电技术研究所甘肃兰州730070 甘肃省物流及运输装备信息化工程技术研究中心甘肃兰州730070 甘肃省物流与运输装备行业技术中心甘肃兰州730070

以城市轨道交通复合储能系统蓄电池荷电状态(SOC)和健康状态(SOH)估算为目的,采用适合城市轨道交通车辆运行工况的二阶RC等效电路模型,并通过遗忘因子最小二乘算法(FFRLS)辨识其模型参数。基于二阶RC等效电路模型利用传统的自适应无迹... 详细信息

以城市轨道交通复合储能系统蓄电池荷电状态(SOC)和健康状态(SOH)估算为目的,采用适合城市轨道交通车辆运行工况的二阶RC等效电路模型,并通过遗忘因子最小二乘算法(FFRLS)辨识其模型参数。基于二阶RC等效电路模型利用传统的自适应无迹卡尔曼滤波算法(AUKF)估计电池的荷电状态(SOC),由于列车复杂的运行环境,其电池受到的噪声是一个动态变化值,因此导致其估算结果误差较大,其最大误差达到5.5%。因此本文采用自适应无迹卡尔曼滤波算法实时估算蓄电池SOC,欧姆内阻及其容量,并根据欧姆内阻、容量与蓄电池SOH之间的函数关系,估算出电池的SOH。最后,通过设定的工况下对状态估计算法验证,经实验分析表明,相比UKF算法,AUKF算法能同时实时循环估算SOC和模型参数,根据观测值可以自动更新噪声,因而对于列车实际运行工况下其实用性更好,且精度较高,其最大误差为3.5%,均差为1.5%。

关键词：蓄电池荷电状态健康状态二阶RC等效电路模型自适应无迹卡尔曼滤波

基于深度神经网络的可编程超表面智能波束形成

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雷达学报（中英文） 2021年第2期10卷 259-266页

作者：李商洋符士磊徐丰复旦大学电磁波信息科学教育部重点实验室上海200433

通过在超表面单元上加载二极管等有源器件,可编程超表面可实现对电磁波的实时灵活调控。通常利用全波仿真软件计算可编程超表面的辐射场,但该方法需要消耗大量的时间,因而降低了设计效率。为了实现准确高效求解给定编码序列计算辐射场,... 详细信息

通过在超表面单元上加载二极管等有源器件,可编程超表面可实现对电磁波的实时灵活调控。通常利用全波仿真软件计算可编程超表面的辐射场,但该方法需要消耗大量的时间,因而降低了设计效率。为了实现准确高效求解给定编码序列计算辐射场,该文首先设计了辐射场自动测试系统,利用该测试系统实测了少量的编码和辐射场数据,其后提出了一个正向深度神经网络,基于实测的数据训练该神经网络,最终实现了给定编码准确高效预测辐射场。对于给定辐射场求解编码的逆问题,该文提出了一个逆向深度神经网络。基于正向网络生成的数据训练所提出的逆向网络,最终实现了给定辐射场实时准确求解编码。该文所提出的方法为雷达波束形成提供了一种新可选方案,在雷达智能波束形成、微波成像等领域有一定的应用价值。

关键词：可编程超表面离散偶极子近似深度学习全连接网络辐射场预测

A Tutorial on Quantized Feedback Control

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IEEE/CAA Journal of Automatica Sinica 2024年第1期11卷 5-17页

作者： Minyue fu IEEE the School of System Design and Intelligent Manufacturing Shenzhen Key Laboratory of Control Theory and Intelligent Systems and Centre for Control Science and TechnologySouthern University of Science and TechnologyShenzhen 518055China

In this tutorial paper, we explore the field of quantized feedback control, which has gained significant attention due to the growing prevalence of networked control systems. These systems require the transmission of feedback information, such as measurements and control signals, over digital networks, presenting novel challenges in estimation and control design. Our examination encompasses various topics, including the minimal information needed for effective feedback control, the design of quantizers, strategies for quantized control design and estimation,achieving consensus control with quantized data, and the pursuit of high-precision tracking using quantized measurements.

关键词： Consensus control high-precision control networked control quantized estimation quantized feedback control robust control

Dynamics of 2×2 matrix non-Hermitian quantum systems on Bloch sphere

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Communications in Theoretical Physics 2024年第4期76卷 66-71页

作者： Libin fu Graduate School of China Academy of Engineering Physics Beijing 100193China

By casting evolution to the Bloch sphere, the dynamics of 2 × 2 matrix non-Hermitian systems are investigated in detail. This investigation reveals that there are four kinds of dynamical modes for such systems. The different modes are classified by different kinds of fixed points, namely,the elliptic point, spiral point, critical node, and degenerate point. The Hermitian systems and the unbroken PT non-Hermitian cases belong to the category with elliptic points. The degenerate point just corresponds to the systems with exceptional point(EP). The topological properties of the fixed point are also discussed. It is interesting that the topological charge for the degenerate point is two, while the others are one.

关键词： non-Hermitian quantum system two-level system dynamics on the Bloch sphere PT-symmetry fixed points