基于差分Pattern时延差编码的管道应急声通信技术研究

Research of Pipeline Emergency Acoustic Communication Based on Difference Pattern and Time Delay Difference Coding

在地下空间突发灾难后通信中断的情况下,基于刚性管道的应急声通信系统可为搜救被困人员提供有效保障。在现有的管道应急声通信系统中,存在传输效率较低的缺点,针对该问题,提出一种基于差分Pattern时延差编码的管道应急声通信方法,可有效提高管道应急声通信系统的传输效率。实际的管道实验结果证明了该方法的有效性与可行性,与原来的通信系统相比,相同条件下的通信速率有了较大提高,并具有一定的抗干扰性能。

In the case of the underground space communication interruption after the occurrence of the sudden disaster, the emergency acoustic communication system based on the rigid pipelines can provide effective communication for underground trapped persons. In the existing pipeline emergency acoustic communication system, there is a disadvantage of low transmission efficiency, Aiming at this problem, a method of pipeline emergency acoustic communication based on differential pattern and time delay difference coding was put forward in this paper, which can effectively improve the transmission efficiency of the pipeline emergency acoustic communication system. The actual pipeline experimental results proved the effectiveness and feasibihty of the method, and compared with the original system, its communication rate was improved greatly under the same conditions, and it has certain anti-interference performance.