短波综合业务通信控制系统设计与实现

发布时间：2018-08-14 09:09

【摘要】：作为一种历史悠久的无线通信技术,短波通信因其具有以较低的功率实现远距离传输的特点而得到广泛应用。近年来,随着数字信号处理和软件无线电等技术的不断发展,短波通信技术发展迅速,短波电台正朝着数字化、模块化、软件化、网络化、智能化、业务综合化等方向发展。自动链路建立(ALE)技术是短波通信的关键技术之一。本文主要根据美军标MIL-STD-188-141A和MIL-STD-188-141B,研究了第二代(2G)和第三代(3G)自动链路建立协议,针对ALE系统的功能要求给出了一种实现方案,并在DSP硬件平台上实现了ALE系统功能。首先对2G-ALE和3G-ALE异步模式协议进行了深入研究,根据141A和141B的规定和要求,讨论了2G-ALE和3G-ALE异步模式下的协议和功能,设计实现了ALE协议和功能的软件。其次,在3G-ALE异步模式协议的基础上,设计了一种能够与3G异步模式相兼容的第三代同步模式协议,并给出了同步模式协议的实现方案。然后,针对第三代ALE协议进行了完善和扩展,使用TM协议设计了业务转换、GPS定位信息交互等业务管理协议,实现了通信业务类型转换、远程定位等功能。此外,介绍和研究了跳频相关内容,设计了一种跳频通信控制的实现方案。最后,整合各模块的设计方案,结合物理层波形收发程序以及硬件平台结构和功能,在TMS320C6713 DSP平台上完成了ALE系统相关程序的编写和调试,实现了2G-ALE、3G-ALE同步模式和异步模式链路协议以及跳频通信控制功能。通过实际短波无线信道对ALE系统各项功能进行了测试,达到了设计目标。
[Abstract]:As a kind of wireless communication technology with a long history, shortwave communication has been widely used because of its characteristics of long-distance transmission with low power. In recent years, with the continuous development of digital signal processing and software radio technology, shortwave communication technology is developing rapidly. Shortwave radio is developing towards digitalization, modularization, software, networking, intelligence, service integration and so on. Automatic link establishment (ALE) is one of the key technologies in HF communication. Based on the US military standard MIL-STD-188-141A and MIL-STD-188-141B, the second generation (2G) and the third generation (3G) automatic link building protocols are studied in this paper. According to the functional requirements of the ALE system, an implementation scheme is presented, and the ALE system function is realized on the DSP hardware platform. Firstly, the 2G-ALE and 3G-ALE asynchronous mode protocols are deeply studied. According to the rules and requirements of 141A and 141B, the protocols and functions of 2G-ALE and 3G-ALE asynchronous mode are discussed, and the software of ALE protocol and function is designed and implemented. Secondly, on the basis of 3G-ALE asynchronous mode protocol, a third generation synchronous mode protocol which is compatible with 3G asynchronous mode is designed, and the implementation scheme of synchronous mode protocol is given. Then, the third generation ALE protocol is improved and extended, and the service management protocol, such as service conversion, GPS location information interaction and so on, is designed by using TM protocol, which realizes the functions of communication service type conversion and remote positioning. In addition, the related contents of FH are introduced and studied, and a scheme of FH communication control is designed. Finally, integrating the design of each module, combining the physical layer waveform transceiver program as well as the structure and function of the hardware platform, the related program of ALE system is written and debugged on the TMS320C6713 DSP platform. The 2G-Alle 3G-ALE synchronous mode and asynchronous mode link protocol and the frequency hopping communication control function are realized. The functions of ALE system are tested through the actual HF wireless channel, and the design goal is achieved.
【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】：TN925

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