This thesis gives analysis on tdm circuit emulation structure in psn , describes the basic theory of tdmoip and the technology of encapsulation , based on which a applicable circuit emulation equipment application scheme 本论文对分组交换网中tdm电路仿真的体系结构进行了分析,描述了tdmoip的基本理论及适配、封装技术,在此基础上提出了一套可行的电路仿真设备实现方案。 tdmoip的技术依据是ietf的pwe3草案。
Firstly , the simulator adopts the semi - physical simulation technology , which makes the results more credible . secondly , the simulation platform and the model of the object are designed independently , assuring that the simulator is universal and the modeling is flexible 本文以此为背景,详细讨论了航电系统通用半实物仿真设备的分析、建模、设计以及实现,为今后航电系统的开发提供了一个优秀的仿真平台。
The electro - hydraulic load simulator is a half simulative equipment simulating the air power torque exerted on the rudder of aircraft flying in the air , and is a typically passive force ( torque ) servo control system . it is used to test the performances of aircraft rudder on the ground 电液负载模拟器( electro - hydraulicloadsimulator )是模拟飞行器在飞行过程中其舵机所受空气动力力矩载荷的半实物仿真设备,是典型的被动式力(力矩)伺服控制系统。
The system adopts miniaturization design and master - slave structure , which is composed of real - time simulation device and display computer . considering the application of mobile environment , display computer adopts notebook computer , which communicates through rs232 interface with real - time simulation device 该系统采用小型化设计和主?从式结构，系统由“实时仿真设备”和显示计算机组成，考虑到移动环境中的应用，显示计算机采用笔记本电脑，通过rs232接口与“实时仿真设备”进行数据通信。
This paper studies the design documents of the avionic system detailedly , including the interface control document and detailed design requirements , and summarizes the data structures and the communication formats of the system , and designs the simulation database . this paper also studies some protocols such as gjb289a , arinc429 and udp etc , and then determines the methods of data processing . according to the theory of the software engneering , this paper completes the requirements analysis , the globle 本文根据设备的具体设计要求,完成了仿真设备的硬件设计;详细研究了航电系统的系统设计文件? ?接口控制文件和详细设计要求,总结出了航电系统的数据结构和消息通讯格式,并在此基础上设计了用来表达仿真对象的关系型仿真数据库;研究了gjb289a 、 arinc429等总线协议以及udp网络协议,明确了各类数据的处理方法;按照软件工程的开发理论,完成了仿真软件的需求分析、概要设计和详细设计,进而通过编程在labwindows / cvi环境下实现了一个界面友好、灵活通用的仿真平台。
In this environment , the trainee is able to employ all kinds of equipments conveniently to build up a idr / ibs network . this network is as good as the real idr / ibs network s o that the trainee can do varieties of operations such as configuration , maintenance , faults - restoration , measurement training , examination training and so on 在此环境中，参训人员可以方便地获得各种仿真设备，利用它们组成一个模拟的idr ibs卫星通信网络，并可对其进行配置、维护、故障排除、联调测试和考核训练等模拟训练。
