| 时间反转滤波器组多载波水声通信方法 |
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| 引用本文： | 王彪,方涛,戴跃伟.时间反转滤波器组多载波水声通信方法[J].声学学报,2020,45(1):38-44. |
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| 作者姓名： | 王彪 方涛 戴跃伟 |
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| 作者单位： | 江苏科技大学电子信息学院 镇江212003;水声对抗技术重点实验室 北京100094;江苏科技大学电子信息学院 镇江212003 |
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| 基金项目： | 国家自然科学基金项目(11574120,U1636117)、江苏省自然科学基金项目(BK20161359)、江苏省“六大人才高峰”计划项目、水声对抗技术重点实验室基金项目、江苏省青蓝工程项目和江苏高校优势学科建设工程—船舶与海洋工程项目资助 |
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| 摘 要： | 针对水声滤波器组多载波(Filter Bank MultiCarrier,FBMC)传统均衡方法效率低、复杂度高等问题,提出了单阵元无源时间反转镜(Passive Time Reversal Mirror,PTRM)和虚拟时间反转镜(Virtual Time Reversal Mirror,VTRM)的均衡算法,该算法利用时间聚焦原理可以降低水声信道带来的符号间干扰(Inter Symbol Interference,ISI),并且不需要在FBMC符号中插入导频,进一步提高了通信速率.通过仿真和外场实验验证了水声FBMC系统采用单阵元PTRM和VTRM的有效性,结果表明,这两种均衡方法能够有效减少ISI,提高系统可靠性能。
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| 收稿时间： | 2017-08-01 |
Method of Time reversal filter bank multicarrier underwater acoustic communication |
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| Institution: | 1 School of Electronic and Information, Jiangsu University of Science and Technology, Zhenjiang 212003;2 Key Laboratory of Underwater Acoustic Countermeasure Technology, Beijing 100094 |
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| Abstract: | Aiming at the problem of low efficiency and high complexity of traditional equalization methods in underwater acoustic Filter Bank MultiCarrier (FBMC) system,an equalization algorithm based on single sensor passive and virtual time reversal mirror is proposed.The algorithm can reduce the Inter Symbol Interference (ISI) caused by the underwater acoustic channel by using the time focusing principle.Besides,it can achieve channel equalization without inserting the pilot in the FBMC symbol.As a result,the ISI can be reduced and the communication rate can be improved.We prove the validity of two equalization methods of single sensor Passive Time Reversal Mirror (PTRM) and Virtual Time Reversal Mirror (VTRM) by simulation and field experiment.The results show that the passive and virtual time reversal equalization method based on single sensor can effectively reduce the ISI and improve the reliability of the system. |
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