CAJ | 학술논문

水下定位是一个通信的过程,其成败取决于水声定位信号的优劣,即该信号的稳定性和获取技术。介绍了一种基于码分多址的水下定位信号技术。该设计简单,较大地降低了水下通信的功耗,提高了功率利用率,较容易地实现了定位信息的发射,可靠性高,能够很方便地应用到多个基站。本文通过基于FPGA芯片实现分频电路,M序列、正弦波产生电路,给出了整个程序设计的流程图。最后通过实验证明：该电路设计简单,工作稳定,多个节点的位置信息能够简单有效的传输,能够达到工程设计的基本要求。
수하정위시일개통신적과정,기성패취결우수성정위신호적우렬,즉해신호적은정성화획취기술。개소료일충기우마분다지적수하정위신호기술。해설계간단,교대지강저료수하통신적공모,제고료공솔이용솔,교용역지실현료정위신식적발사,가고성고,능구흔방편지응용도다개기참。본문통과기우FPGA심편실현분빈전로,M서렬、정현파산생전로,급출료정개정서설계적류정도。최후통과실험증명：해전로설계간단,공작은정,다개절점적위치신식능구간단유효적전수,능구체도공정설계적기본요구。
Underwater positioning is a communication process and its success depends on acoustic positioning signal quality,namely the signal stability and access to technology.This paper introduces a kind of underwater positioning signal based on code division multiple access （cdma） technology.This design is simple,larger reduced underwater communication power consumption,higher power utilization,more easily realized the position information of emission,high reliability,and can be easily applied to multiple base station.This paper based on FPGA realizing separate frequency circuit chip,M sequence,sine wave produces circuit are given,and the whole programming flowchart.At last,through experiment shows that the circuit is simple in design,stable work,the position information of multiple nodes can be simple and effective transmission,can achieve the engineering design of the basic requirements.