基于STM32的GSM-SSB的转发器设计与实现

发布时间：2018-03-24 11:37

本文选题：GSM模块　切入点：STM32　出处：《哈尔滨工程大学》2014年硕士论文

【摘要】：在如今21世纪的信息化时代,互联网的地位对于人们来说越来越重要。可以说大数据的时代已经到来,大数据和云计算的出现加速推动了无线通信技术的发展,而对于电信运营商们来说,这无疑是一个转型发展的机会。海洋作为新世纪的一个热点研究领域,为海洋开发、水声通信等技术的发展提供了良好的契机。然而,随着水下作业工作及水下运动休闲活动的普及,如何沟通水下和水上用户成为一个潜在的用户热点需求。本文研究将陆地无线通信已有成熟发展的GSM技术与水声通信技术相结合,采用结合现成品设计开发的形式,设计并实现一个利用商业GSM模块,应用ARM+DSP双处理器控制方式的单工通信的通信转发器。该转发器主要包括信号控制传输单元、语音信号调制单元和接收端的解调单元,用于验证手机语音信号经转发器传至水下作业人员无线通信的无缝连接的可行性。本文首先对信号控制部分中的ARM主控制器STM32F103VET6以及商业GSM模块GTM900B和录音模块ISD1700进行介绍,并完成对ARM控制部分的硬件电路设计,着重对信号控制部分的程序进行了设计并调试,实现将手机发射的通话语音信号控制输出至调制部分的输入端。然后介绍了水下语音通信系统的组成,对单边带调制解调技术进行了理论研究,并通过MATLAB进行仿真实现。介绍了 TMS320VC5509A的片内资源的同时,介绍了信号处理部分的硬件电路中的外围电路设计和软件部分设计。随后,介绍了接收端PC自带的声卡的信号采集原理和程序设计。之后,给出了本文整个设计过程中的实际调试结果。在本文最后,将信号控制单元、语音信号调制单元和接收端解调单元整合进行电联调实验。对于原语音信号与经过调制解调后的语音信号进行了时频分析对比,验证了手机语音信号经转发器传至水下作业人员无线通信的无缝连接的可行性。
[Abstract]:In the information age of the 21st century, the status of the Internet is becoming more and more important to people. It can be said that big data's era has come, and the emergence of big data and cloud computing has accelerated the development of wireless communication technology. For telecom operators, this is undoubtedly an opportunity for transformation and development. As a hot research field in the new century, the ocean provides a good opportunity for the development of ocean development, underwater acoustic communication and other technologies. With the popularity of underwater work and underwater sports and leisure activities, How to communicate underwater and water users becomes a potential hot demand of users. This paper studies the combination of GSM technology and underwater acoustic communication technology, which has been mature and developed in terrestrial wireless communication, and adopts the form of combining the design and development of existing products. A communication transponder using commercial GSM module and ARM DSP dual-processor control mode is designed and implemented. The transponder mainly includes signal control transmission unit, speech signal modulation unit and demodulation unit at the receiving end. It is used to verify the feasibility of seamless connection between mobile phone voice signal and underwater operator wireless communication. Firstly, the ARM main controller STM32F103VET6, the commercial GSM module GTM900B and the recording module ISD1700 in the signal control part are introduced in this paper. The hardware circuit of the ARM control part is designed, and the program of the signal control part is designed and debugged. The control of voice signal transmitted by mobile phone to the input of modulation part is realized. Then the composition of underwater voice communication system is introduced, and the technology of single sideband modulation and demodulation is studied theoretically. At the same time, the design of the peripheral circuit and the software part of the signal processing part are introduced, and then, the design of the hardware circuit and the software part of the signal processing part are introduced. This paper introduces the signal acquisition principle and program design of the sound card with PC on the receiving end. After that, the actual debugging results in the whole design process are given. At the end of this paper, the signal control unit is introduced. The speech signal modulation unit and the receiver demodulation unit are integrated to carry out the joint modulation experiment. The time-frequency analysis and comparison between the original speech signal and the speech signal after modulation and demodulation are carried out. The feasibility of seamless communication between mobile phone voice signal and underwater operator is verified.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN929.3

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