基于卫星通信的海岛小型无线通信系统的设计与研究

发布时间：2018-03-31 23:12

本文选题：智慧海洋　切入点：海岛通信　出处：《集美大学》2017年硕士论文

【摘要】：近年来,无论是在军事领域还是经济领域,海岛始终是我国重点保护和开发的重要一环。从改革开放以来,虽然我国在海岛的开发已经取得了长足的进步,但相较于沿海的城市还是相去甚远。为了响应国家的号召,中国船舶工业系统工程研究院提出了“智慧海洋”的计划,“智慧海洋”旨在充分发挥信息系统的体系黏合剂和倍增器作用,通过信息共享和智慧创值,进一步提升我国海洋产业的信息化水平,推动海洋产业的技术创新和转型升级,从而全面提升我国经略海洋的能力。“智慧海洋”计划可以归纳为“四横两纵”。“四横”是指感知层、传输层、网络空间层、应用层的全面发展。“两纵”是信息安全体系和政策法规体系的不断完善。计划特别强调了传输层的重要性,传输层主要关注通信技术,因此,发展海岛的通信技术将具有十分重要的意义。现阶段,海岛的通信主要依赖于卫星通信技术。这是因为在海岛上建立有线网络(如海底光缆)费时费力、难度巨大。而卫星通信技术的优势在于,其一,传输量大,通信质量较高,其二,卫星通信易于布置、方便安装。但卫星通信技术的发展也存在问题,其在用户体验的问题上还很落后,即对于用户的服务十分不友好。卫星通信的终端不仅价格昂贵,通话费用也居高不下,而且卫星通信终端功能单一,拨号格式比较复杂。卫星通信服务公司对于用户的重视程度远不如智能手机厂商。因此,本文主要研究一种应用卫星通信,让用户能够用手机上网和打电话的海岛小型无线通信系统。基于卫星通信的海岛小型无线通信系统通过卫星通信接入互联网,通过无线局域网技术实现智能手机的接入互联网的功能,同时,系统还通过VoIP(Voice over Internet Protocol)语音网关,实现了手机拨打电话的功能。首先,本文对卫星通信技术和VoIP语音技术进行了概述。其次,通过对海岛用户的需求分析,对系统的架构、功能进行设计,并完成了总体方案设计。然后,对相应设备的性能需求进行计算,对设备进行选择和布置,并进行安装与调试。接着,对系统带宽分配进行了研究,试着提出一种适用于本系统的带宽分配策略。最后,为了方便对系统的管理,本文通过语音网关的API,基于B/S架构,实现了海岛语音通话信息管理平台。本文着重于卫星通信系统在与提高用户体验方面的创新,为海岛通信技术的发展提供了新思路,弥补了以往海岛通信成本高、不易布置的缺点。再者,本文所研究的系统,通过相应的改良,同样可以解决海洋海事各个领域的通信问题,具有十分广阔的应用前景。
[Abstract]:In recent years, no matter in military or economic fields, islands have always been an important part of protection and development in China.Since the reform and opening up, China has made great progress in the development of islands, but compared with coastal cities, it is still far from each other.In response to the national call, the China Institute of Shipbuilding Industry Systems Engineering put forward a plan for "Ocean of Wisdom", which aims to give full play to the role of system adhesives and multipliers of information systems, and to create values through information sharing and wisdom.Further improve the information level of China's marine industry, promote the technological innovation and transformation of the marine industry, so as to enhance the overall capacity of China's marine economy.The "Ocean of Wisdom" program can be summed up as "four horizontal and two vertical.""four horizontal" refers to the overall development of perceptual layer, transport layer, network space layer and application layer.The two columns are the continuous improvement of the information security system and the system of policies and regulations.The plan emphasizes the importance of transport layer, which is mainly concerned with communication technology. Therefore, the development of island communication technology will be of great significance.At present, island communication mainly depends on satellite communication technology.This is because building cable networks on islands, such as submarine optical cables, is time-consuming and difficult.The advantages of satellite communication technology lie in: first, large amount of transmission and high communication quality; second, satellite communication is easy to arrange and easy to install.However, there are still some problems in the development of satellite communication technology, which is very backward in user experience, that is, it is very unfriendly to the service of users.The terminal of satellite communication is not only expensive, but also very expensive, and the function of satellite communication terminal is single and the dialing format is complex.Satellite communications services pay less attention to users than smartphone makers.Therefore, this paper mainly studies an island small wireless communication system which can use mobile phone to access the Internet and make phone calls.The small island wireless communication system based on satellite communication is connected to the Internet through satellite communication, and the function of smart phone access to the Internet is realized through wireless LAN technology. At the same time, the system also uses VoIP(Voice over Internet Protocol voice gateway.The function of dialing by mobile phone is realized.Firstly, this paper summarizes the satellite communication technology and VoIP voice technology.Secondly, the structure and function of the system are designed by analyzing the needs of island users, and the overall scheme is designed.Then, the performance requirements of the equipment are calculated, the equipment is selected and arranged, and the equipment is installed and debugged.Then, the bandwidth allocation of the system is studied, and a bandwidth allocation strategy suitable for the system is proposed.Finally, in order to facilitate the management of the system, this paper implements the island voice call information management platform based on the B / S architecture of the voice gateway API.This paper focuses on the innovation of satellite communication system in improving the user experience, which provides a new idea for the development of island communication technology, and makes up for the shortcomings of high cost and difficult arrangement of island communication in the past.Furthermore, the system studied in this paper can also solve the communication problems in various fields of marine and maritime affairs through the corresponding improvement, and has a very broad application prospect.
【学位授予单位】：集美大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN927.2

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