【摘要】 研究了一种基于时延编码的远程水声通信技术。该技术利用线性调频信号(LFM)矩形脉冲的时延值进行时延编码,在接收端采用时延估计技术进行时延解码。计算机仿真结果表明,在低信噪比和存在多途扩展的情况下,采用该技术仍可实现信息的远程可靠传输。更多还原

【Abstract】 A kind of long -range acoustic communication technique is studied in this paper.This technique uses different time delay values of the LFM pulse to code the transmitted information,and uses time delay estimation technique to perform decoding.The computer simulation results indicate that under the condition of low SNR and multi-path spreading,long-range reliable information transmission can be obtained by adopting this technique.更多还原