基于optisystem的ocdma的接入设计及仿真毕业设计论文
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光纤通信系统的仿真分析optisystem光纤通信系统的仿真分析(Optisystem仿真附程序)编辑:admin 来源:毕业设计论文网浏览指数:1099 收藏本页:录入时间:2009-12-16 16:38:58摘要关键词光纤仿真optisystem 模型误码率信道simulation analysis of Optical fiber communication systemAbstractOptical fiber communication systems computer simulation is of such systems planning and design, feasibility study and development of new types of systems important means can be used to have been designed optical transmission systems in hardware prior to the performance evaluation and feasibility study, Can save a lot of time and funding, while in the analysis parameters can be changed at any time, for theoretical research. To establish a convenientand reliable optical fiber communication system simulation platform, the system depends on the physical characteristics of each module is derived and summarized, and establish a system of mathematical models of each module. Modeling the basic principle is not only describes the characteristics of the device, have a certain precision, and also take into account the complexity of calculating, a relatively fast pace of. At the same time, according to research purposes should also be different, adjust the model selected. In the optical fiber communication systems analysis, based on the use Optisystem simulation software, a high-speed large-capacity optical fiber systems simulation model, be a high-speed optical fiber communication system with the characteristics of the laser frequency modulation and bias current relationship, fiber The loss and dispersion, and other parameters of the simulation results. And the transmission rate of 10 Gb / s fiber-optic communication systemsdesign and simulation analysis.Key Words optical fiber simulation optisystem Model BER Channel光纤通信技术是一门多学科专业交叉渗透的综合技术。
基于optisystem光学传感器阵列的仿真设计的国外文献IntroductionOptical sensors are widely used in various fields, such as environmental monitoring, medical diagnosis, and industrial applications. Optical sensor arrays, which consist of multiple sensor elements, offer significant advantages in terms of sensitivity, selectivity, and multiplexing capabilities. However, designing and optimizing optical sensor arrays can be a challenging task due to the complex interactions between light and the sensor elements.Simulation tools provide an effective way to study the performance of optical sensor arrays without the need for expensive and time-consuming experimental setups. OptiSystem, a comprehensive software package for designing and simulating optical communication systems, offers a powerful platform for simulating optical sensor arrays. In this review, we provide an overview of the simulation design of optical sensor arrays based on OptiSystem, including the key features of the software, the simulation techniques used, and the applications of optical sensor arrays in different fields.Overview of OptiSystemOptiSystem is a versatile software package developed by Optiwave Systems Inc. It provides a range of tools for designing and simulating optical communication systems, including optical sensors. The software enables users to create complex optical systems by combining optical components such as sources, detectors, fibers, and splitters, and simulate the performance of these systems under different conditions.Key features of OptiSystem include a user-friendly graphical interface, a wide range of built-in optical components, advanced simulation algorithms, and comprehensive data analysis tools. The software also supports a variety of measurement and analysis techniques, such as power spectral density analysis, eye diagram analysis, and bit error rate analysis.Simulation techniques for optical sensor arraysSimulation design of optical sensor arrays based on OptiSystem typically involves the following steps:1. System modeling: The first step in designing an optical sensor array is to model the system architecture using OptiSystem's graphical interface. This involves selecting the appropriate optical components, arranging them in the desired configuration, and setting the operating parameters of the system.2. Light propagation simulation: Once the system architecture is defined, the next step is to simulate the propagation of light through the optical sensor array. OptiSystem uses ray tracing and beam propagation techniques to calculate the transmission and reflection of light at each sensor element, taking into account factors such as refractive index, absorption, and scattering.3. Sensor response simulation: After simulating the light propagation, the next step is to model the response of the sensor elements to the incident light. OptiSystem provides a range of models for different types of sensors, such as photodiodes, photoconductors, and photomultipliers, allowing users to accurately predict the output signal of each sensor element.4. Signal processing and analysis: Finally, the simulated output signals from the sensor elements can be processed and analyzed using OptiSystem's data analysis tools. This allows users to extract useful information from the sensor array, such as the intensity of the incident light, the wavelength of the light, and the spatial distribution of the light.Applications of optical sensor arraysOptical sensor arrays have a wide range of applications in various fields, including:1. Environmental monitoring: Optical sensor arrays can be used to detect pollutants in air and water, monitor the quality of soils, and track environmental changes over time. For example, optical sensor arrays have been used to detect heavy metals in water, monitor greenhouse gases in the atmosphere, and measure the concentration of nutrients in soils.2. Medical diagnosis: Optical sensor arrays can be used for non-invasive medical diagnostics, such as monitoring blood glucose levels, detecting cancer cells, and imaging internal organs. For example, optical sensor arrays have been used to analyze blood samples for diseases, monitor the oxygen saturation in tissues, and image the retinal blood vessels in the eye.3. Industrial applications: Optical sensor arrays can be used for quality control, process monitoring, and product inspection in industrial settings. For example, optical sensor arrays have been used to inspect the surface roughness of machined parts, monitor the temperature of manufacturing processes, and detect defects in semiconductor wafers. ConclusionOptical sensor arrays offer significant advantages in terms of sensitivity, selectivity, and multiplexing capabilities, making them an attractive technology for a wide range of applications. Simulation tools such as OptiSystem provide a powerful platform for designing and optimizing optical sensor arrays, allowing users to study the performance of these systems in a virtual environment before implementing them in real-world applications.In this review, we have provided an overview of the simulation design of optical sensor arrays based on OptiSystem, including the key features of the software, the simulation techniques used, and the applications of optical sensor arrays in different fields. By leveraging the capabilities of OptiSystem, researchers and engineers can develop innovative optical sensor arrays that address pressing challenges in environmental monitoring, medical diagnosis, and industrial applications.。
浅谈Optisystem仿真在光纤通信教学中的应用
李向莉
【期刊名称】《科教文汇》
【年(卷),期】2014(000)023
【摘要】光纤通信是通信类专业重要的专业课,本文提出了在光纤通信教学中使用 optisystem 进行仿真实验分析,结合光纤通信课程本身的特点,采用软件仿真的实验教学方式,实践验证了该教学模式可以使光纤通信理论中一些枯燥乏味的数学理论,转变为直观、清晰的图形化显示,从而有利于学生的理解,提高教学的质量和效率。
【总页数】2页(P66-67)
【作者】李向莉
【作者单位】苏州信息职业技术学院江苏·苏州 215200
【正文语种】中文
【中图分类】G712
【相关文献】
1.Optisystem 虚拟仿真在光纤通信实践教学中的应用探讨 [J], 唐志军;吴笑峰;席在芳;吴亮红
2.浅谈OptiSystem软件在"光纤通信技术"教学中的应用 [J], 徐杰
3.OptiSystem仿真在光纤通信实验教学中的应用 [J], 王秋光;张亚林;胡彩云
4.OptiSystem仿真在光纤通信实验教学中的应用 [J], 王秋光;张亚林;胡彩云;赵莹
琦
5.OptiSystem软件在光纤通信实验教学中的应用 [J], 王学勤;郑艳彬
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时域相位OCDMA系统的仿真研究作者:杨洁来源:《数字化用户》2013年第22期【摘要】OCDMA技术重点是地址码的选择,LA码的自相关和互相关性能良好,利用LA码作为地址码,并通过光通信软件仿真证明,以LA码作为扩频序列时能够消除准同步时域相位OCDMA系统的多址干扰和差拍噪声。
【关键词】OCDMA LA 时域相位一、引言OCDMA是将CDMA技术应用于光纤通信系统,可以随机接入各个用户,调谐更加灵活、用户时延随机分布在整个比特周期内,设备更简化,成本更低。
为了实现信道共享,OCDMA将分配给每个用户唯一的、且相关特性好的光地址码,用以相互区别和标示。
二、地址码分析时域OCDMA编码过程是在时间上将信息扩频成为高比特率的脉冲序列,解码时利用光纤延迟线,在时域上将脉冲序列恢复成原信息。
不同的用户将分配到不同扩频序列,判决变量中包含的干扰成分的大小将取决于序列的自相关和互相关的特性。
因此采用不同的扩频序列将对系统性能的好坏带来直接的影响。
经分析将采用LA码作为地址码进行研究。
一个LA 码由3个参数决定:(N,K,M),N为码长,K为基本脉冲个数,M 为零相关区的长度。
设是第k个用户的地址码,码长为N,。
定义码字的互相关非周期函数为:(1)LA(712,16,38)有16个基本脉冲,非零脉冲的位置为{0,52,105,159,197,236,276,317,359,402,446,491,537,584,632,681}。
由长度为16的Walsh码决定每个基本脉冲的相位,非零脉冲“1”表示扩频序列的相位为0,非零脉冲“-1”表示相位为。
以此LA码作为扩频序列,任选两组分析,得到的非周期自相关和与的非周期互相关,由图1可见38个切普延时范围内,LA(712,16,38)码的非周期自相关和互相关都为0。
(a) a1的非周期自相关(b)a1与a3的非周期互相关图1 a1的非周期自相关和a1与a3的非周期互相关三、仿真及分析通过光通信仿真软件,建立一个8用户系统、数据传输速率为1G bit/s,光纤传输距离为20 km,采用准同步传输方式的时域相位OCDMA系统。
基于OptiSystem软件的OCDMA系统仿真
张晓燕;杨祎
【期刊名称】《现代电子技术》
【年(卷),期】2010(33)7
【摘要】分析了采用光素数地址码的异步OCDMA系统设计原理,阐述了OptiSystem软件针对光系统的强大仿真功能.在设计原理的基础上,采用光纤延时线编码技术给出了基于OptiSystem的异步OCDMA系统仿真模型,得出仿真结果并进行了分析,验证了系统设计的正确性和设计方案的可行性.
【总页数】4页(P99-101,110)
【作者】张晓燕;杨祎
【作者单位】西安邮电学院,陕西,西安,710121;西安邮电学院,陕西,西安,710121【正文语种】中文
【中图分类】TN914.53
【相关文献】
1.基于OptiSystem仿真软件的阵列波导光栅波分复用器设计与分析 [J], 刘莲;毛淑华
2.基于光正交码的多波长OCDMA与WDM+OCDMA系统的性能分析 [J], 吉建华;范戈
3.基于Optisystem的色散补偿光纤通信系统仿真分析 [J], 彭霞;张丽华;姚玲
4.准同步时域相位OCDMA系统仿真研究 [J], 肖峥峰;龚方平;罗昭;吉建华
5.基于OptiSystem的相干光纤通信系统仿真研究 [J], 姜波波
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基于OCDMA的局域网通信算法及其仿真
丁晓刚;覃亚丽
【期刊名称】《光通信技术》
【年(卷),期】2004(28)10
【摘要】提出两种基于光码分多址(OCDMA)技术的局域网媒体访问控制算法,用有限的数据码字来实现多于码字数目的局域网用户之间的通信.通过计算机仿真,研究和比较了这两种算法的优劣,为光码分多址局域网协议标准提供一些借鉴.
【总页数】3页(P32-34)
【作者】丁晓刚;覃亚丽
【作者单位】浙江工业大学浙江省光纤通信技术重点实验室,杭州,310014;浙江工业大学浙江省光纤通信技术重点实验室,杭州,310014
【正文语种】中文
【中图分类】TN915.6
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2.基于虚拟局域网的智能变电站通信网络实时性仿真 [J], 方子璐;杨俊杰;刘娟
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5.基于局域网平台的通信网络仿真方案 [J], 王文鼐;张毅昆
因版权原因,仅展示原文概要,查看原文内容请购买。
研制开发的相干光纤通信系统仿真研究姜波波(安徽长安专用汽车制造有限公司,安徽相干光纤通信系统因其具有灵敏度高、中继距离长、通信容量大以及可以采用多种调制方式等特点,成采用相干光纤通信是目前光纤通信发展的主要趋势。
光信号的幅度、频率以及相位都可以被调制,从而可以大幅提高系统的传输效率,因此多适用于宽带视频、多媒体相干光纤通信;振幅;频率;相位Simulation Research of Coherent Optical Fiber Communication System Based on OptiSystemJIANG BoboAnhui Changan Special-Purpose Vehicle Manufacturing Co.communication system has thevarious modulation modes.Coherentbecome the focus in the high数字信号发生器CW激光器CW激光器极化波幅度调制器随机脉冲发生器光纤耦合器误码率分析仪光接收器眼图分析仪图1 振幅调制光路图改变光纤通信参数,选出振幅调制中的最优传输方案。
光纤通信中使用的有3个低损耗波长分别为850 nm、1310 nm和1550 nm。
本次仿真中分别对这个参数进行比较,眼图仿真结果如图2所示。
图2的横坐标表示周期,纵坐标表示幅度,从图中可以看出,波长为1550 nm的系统的传输性能明显比850 nm和1330 nm的性能好,故在本次设计中波长采用1550 nm。
在波长为1550 nm的基础上,变光纤参数中的色散值,设计了3 ps/nm·km、 ps/nm·km以及7 ps/nm·km共3个色散值,眼图仿真结果如图3所示。
可以看出,色散为5 ps/nm·km的系统的性能比振幅/m时间/位周期0.0030.0020.0010.5100.510.51时间/位周期时间/位周期21.71.41.10.80.50.0020.00170.00140.00110.00080.00050.5100.5100.510.51振幅/m时间/位周期21.71.41.10.80.50.5100.51振幅/m322171400.5100.5100.51时间/位周期0.0030.00200.51时间/位周期 2020年9月25日第37卷第18期Telecom Power TechnologySep. 25,2020,Vol. 37 No. 18 姜波波:基于OptiSystem 的 相干光纤通信系统仿真研究结果看,设计的光电路振幅调制所展现的眼图的仿真效果比另两种调制方式更理想。