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| 差分Pattern时延差编码水声通信技术研究 | |
| 引用本文： | 殷敬伟,张 晓,生雪莉,孙 超.差分Pattern时延差编码水声通信技术研究[J].通信学报,2012,33(6):112-117. |
| 作者姓名： | 殷敬伟 张 晓 生雪莉 孙 超 |
| 作者单位： | 1. 哈尔滨工程大学水声技术重点实验室,黑龙江哈尔滨150001;西北工业大学声学工程研究所,陕西西安710072 2. 哈尔滨工程大学水声技术重点实验室,黑龙江哈尔滨,150001 3. 西北工业大学声学工程研究所,陕西西安,710072 |
| 基金项目： | 博士后基金资助项目，国家自然科学基金资助项目，教育部高等学校博士点基金资助项目，上海交通大学海洋工程国家重点实验室基金资助项目 |
| 摘 要： | 基于传统Pattern时延差编码提出一种采用非固定码元宽度的差分编码方式(DPDS),以相邻码元时间差值携带信息,利用不同线性调频信号来实现码元分割,具有较好的抗码间干扰和抗多普勒的能力。通过计算机仿真研究及湖试实验,验证了DPDS系统可提高通信速率,可抑制信道多途效应产生的码间干扰和多普勒效应产生的时间漂移,具有很好的有效性和稳健性。 |
| 关 键 词： | 水声通信 Pattern时延差编码 差分编码 多普勒 |
Research on differential Pattern time delay shift coding underwater acoustic communication |
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| YIN Jing-wei , ZHANG Xiao , SHENG Xue-li , SUN Chao.Research on differential Pattern time delay shift coding underwater acoustic communication[J].Journal on Communications,2012,33(6):112-117. | |
| Authors: | YIN Jing-wei ZHANG Xiao SHENG Xue-li SUN Chao |
| Affiliation: | 1.Science and Technology on Underwater Acoustic Laboratory,Harbin Engineering University,Harbin 150001,China;2.Institution of Acoustic Engineering,Northwestern Polytechnical University,Xi’an 710072,China) |
| Abstract: | A differential Pattern time delay shift coding(DPDS) method with a non-fixed code width based on the traditional Pattern time delay shift coding was proposed.The information is carried by the time delay between adjacent code element,the different linear frequency modulation(LFM) signal is used for adjacent code division.The DPDS system has an ability anti inter-symbol interference(ISI) and the Doppler effects.The computer simulation and lake tests prove that the DPDS system can improve the communication rate,inhibit the ISI caused by the multi-path channel and anti the Doppler effects.It is proved that the system has an effectiveness and robustness. |
| Keywords: | underwater acoustic communication Pattern time delay shift coding differential coding Doppler |
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