摘要
在传统的长基水声定位技术基础上,设计了一套集水声定位监测、无线电通信和水声遥控功能于一体的无线电遥控水声监测浮标系统,利用合作信标方式和询问应答方式对水下目标的三维运动轨迹进行测量,无线电通信和水声遥控功能相结合能实现对海底潜标的远程控制。系统设计中采用了一系列消除干扰、降低功耗的措施,提高了定位精度,延长了系统的工作时间。经水声拉距试验,到达7.8km处时,应答信号的时延值仍稳定;水声遥控指令在5.5km处时稳定可靠。在无线电拉距试验过程中,相距12km处通信质量良好。解算出的定位轨迹与目标船上的GPS轨迹基本一致,定位精度在5m左右。上述海上试验结果证明了系统的可行性和可靠性。
A buoy system used in distributed location and navigation system is proposed. The system functions include underwater acoustic location, radio communication and underwater acoustic remote control. The system can track three-dimensional movement of underwater objects using cooperated beacon and inquire-response. It can also control underwater transponders with a combination of ratio and underwater acoustic remote control. Design of radio communication, signal processing, underwater acoustic communication, power supply management and construction of the buoy are introduced. Feasibility and reliability of the system are shown with sea trials.
出处
《声学技术》
CSCD
北大核心
2007年第5期806-810,共5页
Technical Acoustics
关键词
水声遥控
水声定位
水声导航
无线电通信
长基线
underwater acoustic remote control
underwater acoustic location
underwater acousticnavigation
radio communication
long baseline
