【作者】 何炜；

【导师】 耿相铭； 邹勤宜；

【作者基本信息】 上海交通大学 ， 电子与通信工程， 2009， 硕士

【摘要】 随着通信、网络等技术的不断发展,对车内(机内)通话系统提出了更高的要求。本文以军用车内通话系统为主要应用背景,实现对现有车内通话系统的升级和改造,主要涉及系统结构、软件流程、相关接口及通信协议等内容。早期模拟车内通话系统已经不能满足数字化建设的需要。现役的数字式车内通话系统普遍功能单一,不具备数据传输等功能。而且系统组成单体设备种类多、接口不统一、兼容性差,较难实现通用化设计。本文提出一种基于ARM+DSP架构的多功能车内通话系统。主要由多个语音终端、一个主控盒以及头戴通信帽等硬件组成,最大可支持车内16个乘员之间通话,具有群呼、组呼、选呼、强呼、数据传输等功能,系统内乘员还可以通过主控盒与车外网络的用户进行通话或通信。论文共分七章,主要内容包括:(1)车内通话系统的国内外发展现状和趋势;(2)语音终端系统设计,包括软硬件实现、通信协议等;(3)语音终端设计中几个关键技术的分析和研究。本文设计的语音终端话音质量高,扩展功能强大,成本相对低廉,除适合在军用通信领域外,在商用领域也具有良好的市场前景。更多还原

【Abstract】 With the constant development of communications technology and network technology, the telephone system inside the vehicle has been put forward higher requirements. This paper takes the military vehicle system as the main background, and points out the realization of upgrade and transformation to this system, which is mainly related to system architecture, software process, the relevant interface and communication protocol and so on.The origin analog telephone system inside the vehicle has no longer met the needs of digital construction, for which is generally only has a single function instead of the data transfer function. Also there are many types of the monomer equipments, non-unified interfaces and poor compatibility, which is rather difficult to achieve universal design .This paper presents the multi-functional voice system inside the vehicle based on ARM+DSP. The system consists of multiple voice terminals; one main control box and wearing communication caps and it can strongly support the multi-communication between 16 crews with Relation Call, Group Call, Selective Call, Force Call, Data Transmission and other functions. At one time, the crew can also speak with network users outside the vehicle via the main control box.This paper composes of seven chapters and the main contents are as followings:(1)The current status and trend at home and abroad (2)The terminal design including software and hardware project, also the communication protocol (3)The analysis and research to some key technologies used in the designThe design mentioned in this paper will enjoy one bright future due to it applies not only to the area of military communication but also to the business with it’s high-quality voice, the powerful expansion and the lower cost.更多还原