【摘要】 本文针对在水声通信中使用m序列作为编码形式的扩频通信系统进行研究。分析扩频码的产生和序列特点,给出的编码序列搜索,信息解码的解码方法。对其中相关运算给出了快速算法,解决了运算中的瓶颈问题,极大的提高了运算速度,并对长序列的快速相关进行初步探索。更多还原

【Abstract】 In this paper,m sequences are used to code the information in the under wa- ter acoustic spread spectrum communication system.The generation and characteristics of m sequences are analyzed.The methods for searching the coded sequences and decod- ing the information are given.A fast algorithm is used to compute the correlation of the sequences,which alleviates the computation bottleneck and dramatically increases the computation speed.An elementary exploration on the fast algorithm of long sequences is also presented.更多还原