摘要
为让学生掌握Pattern时延差编码(PDS)、被动时间反转镜(PTRM)等水声通信技术,深刻理解多径干扰对深海水声通信系统的影响,将具有很强抗多径干扰能力的PDS技术应用于深海水声通信;将PTRM技术应用于PDS系统,在对抗深海信道多径干扰更具优势;将矢量信号处理技术应用到上述通信系统,以提高系统的输入信噪比(SNR)。结果表明,该通信系统能够在深海多径和低输入SNR情况下,以较低的误码率(BER)及较高的通信速率进行通信。通过深海PTRM-PDS通信系统的仿真,在教学中使学生深入了解技术流程。更加直观体验PTRM-PDS水声通信技术原理及有关过程。
In order to make students master underwater acoustic communication technology such as pattern delay difference coding(PDS)and passive time reversal mirror(PTRM),and deeply understand the influence of multipath interference on deep-sea acoustic communication system,the PDStechnology with strong anti-multipath interference ability is applied to deep-sea acoustic communication firstly.ThePTRMtechnology is applied to the PDS system,which has more advantages in resisting the multipath interference of deep-sea channel.And then,vector signal processing technology is applied to the above communication system to improve the signal to noise ratio(SNR)of the system.Finally,through the simulation experiment design of deep-sea PTRM-PDS communication system,students can strengthen their understanding of the technology process in the teaching.The results show that the communication system can communicate with low bit error rate(BER)and high communication rate under the condition of deep sea multipath and low input SNR.Through the design of simulation experiment,the principle and related process of PTRM-PDS underwater acoustic communication technology can be more directly embodied.
作者
郭铁梁
赵旦峰
GUO Tieliang;ZHAO Danfeng(School of Electronics and Information Engineering,Wuzhou University,Wuzhou 543002,Guangxi,China;Guangxi Key Laboratory of Machine Vision and Intelligent Control,Wuzhou University,Wuzhou 543002,Guangxi,China;College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China)
出处
《实验室研究与探索》
CAS
北大核心
2022年第8期139-143,218,共6页
Research and Exploration In Laboratory
基金
教育部第二批“新工科”研究与实践项目(E-DZYQ20201426)
广西高等教育本科教学改革工程重点项目(2021JGZ159)
梧州学院教育教学改革工程项目(wyjg2022A037)。
关键词
水声通信教学
PATTERN时延差编码
被动时间反转镜
仿真实验设计
underwater acoustic communicationteaching
pattern time delay shift coding
passive time reversal mirror
simulation experiment design
