Theoretical and Experimental Study of Singly－resonant Optical Parametric Oscillator

ＴｈｅｏｒｅｔｉｃａｌａｎｄＥｘｐｅｒｉｍｅｎｔａｌＳｔｕｄｙｏｆＳｉｎｇｌｙ－ｒｅｓｏｎａｎｔＯｐｔｉｃａｌＰａｒａｍｅｔｒｉｃＯｓｃｉｌｌａｔｏｒ￥ＺＨＡＮＧＹｕｆｅｉ；ＺＨＡＮＧＺｈａｏｃｈｅｎ；ＷＡＮＧＸｉａｎｙｕｎ；ＣＨＥＮＳｈａｏｊｕｎ；...     

Noncontact Measurement of Surface Topography by Mirau Interferometer

ＮｏｎｃｏｎｔａｃｔＭｅａｓｕｒｅｍｅｎｔｏｆＳｕｒｆａｃｅＴｏｐｏｇｒａｐｈｙｂｙＭｉｒａｕＩｎｔｅｒｆｅｒｏｍｅｔｅｒ￥ＤＩＮＧＺｈｉｈｕａ；ＷＡＮＧＧｕｉｙｉｎｇ；ＷＡＮＧＺｈｉｊｉａｎｇ（ＳｈａｎｇｈａｉＩｎｓｔｉｔｕｔｅｏｆＯｐｔｉｃｓａｎ...     

Intracavity Frequency Doubling of a New Low－threshold High－efficiency Crystal Nd：Sr_5（VO_4）_3F

ＩｎｔｒａｃａｖｉｔｙＦｒｅｑｕｅｎｃｙＤｏｕｂｌｉｎｇｏｆａＮｅｗＬｏｗ－ｔｈｒｅｓｈｏｌｄＨｉｇｈ－ｅｆｆｉｃｉｅｎｃｙＣｒｙｓｔａｌＮｄ：Ｓｒ＿５（ＶＯ＿４）＿３ＦＺＨＡＯＳｈｅｎｇｚｈｉ；ＷＡＮＧＱｉｎｇｐｕ；ＺＨＡＮＧＸｉｎｇｙｕ；ＷＡＮＧ...     

Theoretical Analysis and Experimental Research on Recordable Compact Disc with Dye Material

ＴｈｅｏｒｅｔｉｃａｌＡｎａｌｙｓｉｓａｎｄＥｘｐｅｒｉｍｅｎｔａｌＲｅｓｅａｒｃｈｏｎＲｅｃｏｒｄａｂｌｅＣｏｍｐａｃｔＤｉｓｃｗｉｔｈＤｙｅＭａｔｅｒｉａｌ￥ＷＡＮＧＳｈｉｙｏｎｇ；ＷＡＮＧＳｈｉｊｉｅ（ＳＡＳＴＤＯＤＣｏ．Ｌｔｄ．，Ｓｈｅｎｚｈ...     

The Fiber Soliton Communication System with Stochastic Variation of Gain

ＴｈｅＦｉｂｅｒＳｏｌｉｔｏｎＣｏｍｍｕｎｉｃａｔｉｏｎＳｙｓｔｅｍｗｉｔｈＳｔｏｃｈａｓｔｉｃＶａｒｉａｔｉｏｎｏｆＧａｉｎ￥ＷＥＮＹａｎｇｊｉｎｇ；ＣＨＥＮＭｉｎｇｈｕａ；ＺＨＡＮＧＭｉｎｇｄｅ；ＹＡＮＧＸｉａｎｇｌｉｎ（Ｄｅｐａｒｔｍｅｎｔｏｆ...     

Novel Scheme for Narrow Band Fiber Filter System

ＮｏｖｅｌＳｃｈｅｍｅｆｏｒＮａｒｒｏｗＢａｎｄＦｉｂｅｒＦｉｌｔｅｒＳｙｓｔｅｍＺＨＡＯＹｕｃｈｅｎｇ；ＪＩＡＮＳｈｕｉｓｈｅｎｇ；ＷＡＮＧＷｅｉ；ＴＩＡＮＷｅｎｑｉａｎｇ（ＮｏｒｔｈｅｒｎＪｉａｏｔｏｎｇＵｎｖｉｖｅｒｓｉｔｙ，Ｉｎｓｔｉｔｕｔｅ...     

Design of a new pseudospark-produced high-brightness electron beam source

Ｄｅｓｉｇｎｏｆａｎｅｗｐｓｅｕｄｏｓｐａｒｋ－ｐｒｏｄｕｃｅｄｈｉｇｈ－ｂｒｉｇｈｔｎｅｓｓｅｌｅｃｔｒｏｎｂｅａｍｓｏｕｒｃｅＺＨＵＪｕｎｂｉａｏ；ＷＡＮＧＭｉｎｇｃｈａｎｇ；ＷＡＮＧＺｈｉｊｉａｎｇ（ＳｈａｎｇｈａｉｉｎｓｔｉｔｕｔｅｏｆＯｐｔ...     

Investigation of the Excitation of the Static GaseousLasers by the Combined Microwave and DC Discharges

ＩｎｖｅｓｔｉｇａｔｉｏｎｏｆｔｈｅＥｘｃｉｔａｔｉｏｎｏｆｔｈｅＳｔａｔｉｃＧａｓｅｏｕｓＬａｓｅｒｓｂｙｔｈｅＣｏｍｂｉｎｅｄＭｉｃｒｏｗａｖｅａｎｄＤＣＤｉｓｃｈａｒｇｅｓ￥ＷＡＮＧＹｕｍｉｎ；ＺＨＥＮＧＨｕｉ；ＬＯＵＱｉｈｏｎｇ；ＷＡＮＧＲｕ...     

Compact Optical Omega Network

ＣｏｍｐａｃｔＯｐｔｉｃａｌＯｍｅｇａＮｅｔｗｏｒｋ￥ＷＡＮＧＮｉｎｇ；ＹＩＮＹａｏａｌ；ＱＩＡＮＪｉａｊｕｎ；ＬＩＵＬｉｒｅｎ（ＳｈａｎｇｈａｉＩｎｓｔｉｔｕｔｅｏｆＯｐｔｉｃｓａｎｄＦｉｎｅＭｅｃｈａｎｉｃｓ，ＡｃａｄｅｍｉａＳｉｎｉｃａ，Ｐ．Ｏ...     

A Study on Yttrium Containing Fullerene YC＿（82） Using Laser Ablation Mass Spectroscopy

ＡＳｔｕｄｙｏｎＹｔｔｒｉｕｍＣｏｎｔａｉｎｉｎｇＦｕｌｌｅｒｅｎｅＹＣ＿（８２）ＵｓｉｎｇＬａｓｅｒＡｂｌａｔｉｏｎＭａｓｓＳｐｅｃｔｒｏｓｃｏｐｙ￥ＤＯＮＧＧｕｏｘｕａｎ；ＷＡＮＧＳｈｉｌｉａｎｇ；ＤＡＩＳｏｎｇｔａｏ；ＬＩＣｈｕｎｍｉｎｇ；ＣＨ...     

基于SDN的TDMA体制星间网络架构设计

TDMA(时分多址)体制的导航星间网络既可以实现导航测距,也具备较高的数据传输速率,具有较为广泛的业务适应能力。然而,TDMA体制的星间网络系统也存在着星上处理复杂与卫星节点处理能力低的矛盾。借鉴SDN(软件定义网络)将网络系统控制层面与数据层面相分离的思想,在TDMA体制的星间网络中引入SDN技术,设计了基于SDN的TDMA体制星间网络架构,将控制功能从卫星节点抽离出来,使其可以专注于星间数据转发,控制管理信息主要由卫星地面站(后续为高轨道卫星)扮演的SDN控制节点制定并分发,从而简化了卫星的业务负担,同时可以借鉴成熟的地面网络技术制定高效的控管策略。对所设计架构的主要的控管流程进行了仿真模拟,仿真结果表明,该架构具有一定的可行性。     

Data center application oriented control architecture in multi-domain optical networks

With the rapid development of cloud computing, data center application based on considerable storage and computing has become one of the most important service types. Currently the high performance computing facilities and large-capacity storage devices are highly distributed in different locations. Then how to make full use of the current data center mainly depends on the effective joint scheduling of application layer and network layer resources. According to the rigid requirement of data center application, a novel convergence control architecture, i.e. Service-Oriented Group Engine (SOGE) framework is proposed in multi-domain optical networks based on DREAM architecture, and also the corresponding resource demand model (RDM) is built. A resource joint scheduling algorithm (RJSA) for application layer and network layer resource is proposed and implemented based on SOGE framework. Moreover, the SOGE framework and resource joint scheduling algorithm are validated and demonstrated on the test-bed based on DREAM architecture.     

基于云测试的自动测试系统体系架构研究

为了解决面临保障任务时,我军现有保障设备对武器装备故障检测周期过长以及测试资源在测试周期中被单个故障装备长时间占用的问题,对基于云测试(Cloud Testing)的自动测试系统(ATS,Automatic Test System)的体系架构进行了研究。以软件可移植性、硬件可互换性和系统互操作性为设计原则,对面向信号测试领域的云测试系统的体系架构进行了分析;在充分研究现有ATS的体系架构及其存在的突出问题的基础上,提出了基于云测试的ATS的软、硬件模型。为构建基于云测试的自动测试系统的开发和相关关键技术的研究提供了以有益的借鉴并打下了坚实的基础。     

Hyperledger Fabric Access Control System for Internet of Things Layer in Blockchain-Based Applications

Blockchain-based applications are gaining traction in various application fields, including supply chain management, health care, and finance. The Internet of Things (IoT) is a critical component of these applications since it allows for data collection from the environment. In this work, we integrate the Hyperledger Fabric blockchain and IoT devices to demonstrate the access control and establish the root of trust for IoT devices. The Hyperledger Fabric is designed to be secure against unwanted access and use through encryption protocols, access restrictions, and cryptography algorithms. An attribute-based access control (ABAC) mechanism was created using Hyperledger Fabric components only to gain access to the IoT device. Single board computers based on the ARM architecture are becoming increasingly powerful and popular in automation applications. In this study, the Raspberry Pi 4 Model B based on ARM64 architecture is used as the IoT device. Because the ARM64 architecture is not supported by default, we build executable binaries and Docker images for the ARM64 architecture, using the Hyperledger Fabric source code. On an IoT device, we run the fabric node in native mode to evaluate the executable binaries generated for the ARM64 architecture. Through effective chaincode execution and testing, we successfully assess the Hyperledger fabric blockchain implementation and access control mechanism on the ARM64 architecture.     

基于拜占庭故障模式的空天飞行器GNC系统架构研究

针对空天飞行器对GNC系统的高可靠性需求,开展了基于拜占庭故障模式的GNC系统架构研究,采用四机三总线架构设计方案,通过系统内总线实现输入数据及输出数据多机冗余比对,防止拜占庭故障的发生,提升了系统可靠性,实现了系统自检测和故障的准确定位及隔离,并具有在线故障诊断、故障自修复功能,同时解决了高动态、强干扰环境下系统自主性较差的问题,提升了GNC系统可靠性和容错性;经分析,该系统架构能够满足空天飞行器在轨、再入复杂任务需求。     

一种光电混合SIMD型计算机(OEHSC)系统结构及其算法的设计

本文基于光计算机结构和算法必须以“门”一级并行为基础的观点，提出了可实现性能较好的光电混合ＳＩＭＤ型计算机的结构和以位平面数据表示为基础的并行算法。通过性能分析，证明了光计算机计算能力的潜力及光电混合系统的有效性     

Double-image encryption based on joint transform correlation and phase-shifting interferometry

An image encryption method combining the joint transform correlator (JTC) architecture with phaseshifting interferometry to realize double random-phase encoding is proposed. The encrypted field and the decrypting key are registered as holograms by phase-shifting interferometry. This method can encrypt two images simultaneously to improve the encryption efficiency of the methods based on JTC architecture, and eliminate the system alignment constraint of the methods based on Mach-Zehnder interferometer (MZI)architecture. Its feasibility and validity are verified by computer simulations. Moreover, image encryption and decryption can be achieved at high speed optically or digitally. The encrypted data are suitable for Internet transmission.     

下一代自动测试系统体系结构研究进展

以下一代自动测试系统为研究对象,介绍了它的研制背景,分析了自动测试系统体系结构的开放性要求。简述了关键单元的筛选标准和发展过程,指出了基于关键单元建立的开放式体系结构的意义。研究了硬件结构组成及测试程序集的开发和运行的技术模型,说明了敏捷快速全球作战保障演示验证项目和关键单元的标准制定情况,为我军发展下一代自动测试系统提供参考。     

Modeling and performance analysis of optical WDM node architecture using SRR protocol

In order to enhance the data transport capability and overall throughput of an optical wavelength division multiplexing (WDM) system, a proper node architecture design is necessary. In the present paper a simple node architecture model based on media access control protocols for bursty data traffic of variable time slot duration and data rate has been proposed to decrease the packet loss probability and to increase the efficiency of an optical WDM system using synchronous round robin (SRR) protocol. An appropriate mathematical model has been derived to evaluate performance of the proposed node architecture. It has been observed that the network performance is well controlled through implemented model and the corresponding network design parameters.     

Novel architecture of WDM-PON based on single-fiber ring topology featuring protection and dynamic wavelength assignment

A WDM-PON based on a central single-fiber ring and secondary trees is presented and demonstrated. With the proposed architecture, both protection and dynamic wavelength assignment can be realized. The central ring can provide protection for the feeder fiber. The design of the Remote Node (RN) can realize the function of dynamic wavelength assignment. This architecture is designed mainly for large-scale networks in the next generation.