提出一种对于水下传感器网络节点位置信息进行码分多址的编码方式。介绍了码分多址编码的基本思想,用复杂可编程逻辑器件(CPLD)实现分频电路,m序列与正弦波产生电路,以及ASK调制电路。给出了整个程序设计的流程图。实验证明:电路设计简单,工作稳定,多个节点的位置信息能够简单有效的传输。
A code division muhiple access(CDMA) coding for the nodes'location information of underwater sensor network node is presented. The basic idea of CDMA encoding are introduced. By CPLD, sub-frequency circuit,msequence sine wave generated circuit, as well as the ASK modulation circuit is realized. Tests show that the designed circuit is simple, stable and multiple-node location information can be transferred conveniently and effectively.