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Description: In this program we calculate the scattering field of a infinite rectangular surface. I use Physical Optic method and compare the result with exact solution.
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Size: 3072 |
Author: Mohsen |
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Description: In this age of IT revolution, connectivity has become a serious need for information transfer with Internet and intranet requiring exceptionally high bandwidths. A serious aspect of connectivity is the wide area network. For these applications we have fixed point to point solutions such as copper based, fiber optic based and wireless solutions. The first two have a very high installation cost, with respect to laying of cables and installing various network equipments, whereas wireless solutions do not have an overhead of laying down a dedicated physical medium. Thus wireless communication has gained immense importance in the present scenario.
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Size: 1083392 |
Author: ali |
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Description: 利用琼斯矩阵，模拟物理光学课程中电光效应实验全过程，可以直观的考察各个部件对实验结果的影响-Using Jones matrix, analog electro-optic effect in the physical optics course the whole process of experiment, the various components can be visual inspection of the experimental results
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Size: 1024 |
Author: Frank |
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Description: IEEE 802.3 2012 标准,以太局域网络操作
1 Mb / s到100 Gb / s的采用通用的媒体访问控制（MAC）规范和管理信息库（MIB）。带有冲突检测（CSMA / CD）的载波侦听多路访问
MAC协议指定共享介质（半双工）的操作，以及全双工操作。速度具体媒体独立接口（MIIS）允许使用选定的物理层设备（PHY）工作在同轴电缆，双绞线或光纤电缆。系统注意事项多段共享接入网络描述使用被定义为中继器运行速度高达1000 Mb / s的。支持局域网（LAN）运行在所有速度。其他特定功能包括对接入网络的各种PHY类型，物理层适于城域网的应用，并在所选择的提供功率的双绞线PHY类型-IEEE 802.3 2012 standard,Ethernet local area network operation is specified for selected speeds of operation from
1 Mb/s to 100 Gb/s using a common media access control (MAC) specification and management
information base (MIB). The Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
MAC protocol specifies shared medium (half duplex) operation, as well as full duplex operation.
Speed specific Media Independent Interfaces (MIIs) allow use of selected Physical Layer devices
(PHY) for operation over coaxial, twisted-pair or fiber optic cables. System considerations for
multisegment shared access networks describe the use of Repeaters that are defined for
operational speeds up to 1000 Mb/s. Local Area Network (LAN) operation is supported at all
speeds. Other specified capabilities include various PHY types for access networks, PHYs
suitable for metropolitan area network applications, and the provision of power over selected
twisted-pair PHY types
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Size: 25608192 |
Author: 李书荣 |
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Description: OptiSystem 是一套创新的光通信系统仿真软件，它集设计、测试和优化各种类型宽带光网络物理层的虚拟光连接等功能于一身，从长距离通讯系统到LANS和MANS都使用。一个基于实际光纤通讯系统模型的系统级模拟器，OptiSystem具有强大的模拟环境和真实的器件和系统的分级定义。它的性能可以通过附加的用户器件库和完整的界面进行扩展，而成为一系列广泛使用的工具。-OptiSystem is a set of innovative optical communication system simulation software, it set design, testing and optimization of various types of broadband optical network physical layer of virtual optical connection and other functions in one, a long distance communication system to LANS and MANS are used. A system level simulator based on actual fiber optic communication system model, OptiSystem has a strong simulation environment and a hierarchical definition of real devices and systems. Its performance can be extended by the addition of the user device library and the complete interface, and become a series of widely used tools.
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Size: 876544 |
Author: 卓 |
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Description: 通过 Modbus 通讯 RS485 型物理链路，或装有适当变换器的其他接口使 Sepam 能
与远程监控系统连接。
Sepam 采用的 Modbus 规约与 RTU Modbus (1) 规约的子集兼容 ( 一个 Modbus 主
机可以同多个 Sepam 单元通讯 )。 Sepam 永远是子机 ( 从站 )。
所有 Sepam 单元均可配置 ACE949-2 ( 二线 ) 或 ACE959 ( 四线 ) 接口与通讯网络
连接。
RS485 和 ACE937 可连接到通讯网络，光纤通讯星形系统。-Communication via Modbus RS485 type physical link, or fitted with suitable converters other interfaces can make Sepam
Connection with a remote monitoring system.
Sepam uses a subset of the Modbus protocol with RTU Modbus (1) of the Statute compatible (a Modbus master
Machine unit can communicate with a plurality of Sepam). Sepam is always a slave (slave).
All Sepam unit can be configured ACE949-2 (wire) or ACE959 (four-wire) communications network interface
connection.
RS485 and ACE937 can be connected to the communications network, fiber-optic communication star system.
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Size: 1092608 |
Author: 万泽洪 |
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