基于CPM的新型VHF组合电台综合业务单元设计与实现

发布时间：2018-05-01 06:33

本文选题：综合业务单元 + 连续相位调制　；参考：《西安电子科技大学》2014年硕士论文

【摘要】：超短波电台是军事通信中的重要设备,作为超短波电台的核心—综合业务单元,具有强大的信息处理能力,是超短波电台实现调制解调、信道编译码、声码话、战术组网、信道管理、功率控制等功能的重要平台。本文研究的课题源自于某新型海军电台综合业务单元的合作研制任务,本课题所设计的综合业务单元采用软件无线电的设计思想,以DSP、ARM和FPGA为架构,旨在研制一种支持多业务的高速数据收发平台。该综合业务单元由时隙单元、数字处理单元和综合控制单元组成,其主要设计功能有:支持话音、数据等业务、支持不同的传输速率、支持电台间组网、支持多种工作模式等。本文借鉴国内外相关技术,研究了综合业务单元中的两项关键技术:调制技术和组网技术。首先从提高通信系统的传输效率出发,研究了TCM-CPM和OST-CPM两种调制技术,并对其误码性能进行了仿真,综合考虑各方面的因素后,选择TCM-CPM作为综合业务单元的调制方案。然后,为了实现电台间战术互联,设计了TDMA时帧的结构,并制定了时隙的申请分配、碰撞处理及释放等策略;最后,对数字处理单元的硬件接口进行了配置,用DSP芯片实现了TCM-CPM调制和TDMA协议,并对其功能进行了验证,为综合业务单元高效、可靠地传输信息提供了保证。
[Abstract]:Ultrashort wave station is an important equipment in military communication. As the core of ultrashort wave station-integrated service unit, it has powerful information processing ability. It is the realization of modulation and demodulation of ultrashort wave station, channel coding and decoding, vocoder, tactical network, etc. Important platform for channel management, power control and other functions. The research topic of this paper originates from the cooperative research and development task of a new naval station integrated service unit. The integrated service unit designed in this paper adopts the design idea of software radio, and takes DSP arm and FPGA as the framework. The purpose of this paper is to develop a high-speed data transceiver platform which supports multi-service. The integrated service unit is composed of time slot unit, digital processing unit and integrated control unit. The main design functions of the integrated service unit are as follows: supporting voice, data and other services, supporting different transmission rates, supporting networking between radio stations, supporting various working modes and so on. In this paper, two key technologies of integrated service unit, modulation technology and networking technology, are studied by referring to related technologies at home and abroad. Firstly, in order to improve the transmission efficiency of the communication system, two modulation techniques, TCM-CPM and OST-CPM, are studied, and their error performance is simulated. After considering various factors, TCM-CPM is chosen as the modulation scheme of the integrated service unit. Then, in order to realize the tactical interconnection between stations, the structure of TDMA time frame is designed, and the application allocation, collision processing and release strategy of time slot are worked out. Finally, the hardware interface of digital processing unit is configured. The TCM-CPM modulation and TDMA protocol are realized with DSP chip, and its function is verified, which provides a guarantee for the integrated service unit to transmit information efficiently and reliably.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN924

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