Long Range Ultra Short Base Line (LR-USBL) Position System is an underwater acoustic position system, which realize position, track and data communication to five underwater cooperative targets. USBL woks at responsion mode.
长程超短基线(LR—USBL)定位系统是利用水声定位技术实现对多个水下合作目标进行定位、跟踪和数据传输，系统工作于应答工作方式。
参考来源 - 长程超短基线定位系统信号处理算法仿真及软件设计Ultral Short Base Line Positioning System (USBL) is an acoustic positioning system,which realize positioning, tracking and data transmission to underwater cooperative targets. The system generally works in response mode.
超短基线(USBL)定位系统是利用水声定位技术对水下合作目标进行定位、跟踪和数据传输的水声定位系统,系统一般工作于应答方式。
参考来源 - 超短基线宽带信号定位算法的DSP软件设计·2,447,543篇论文数据，部分数据来源于NoteExpress
The total amplitude of anomaly is about 2mm (the base line of the short levelling is 26 meters).
总异常幅度约为2毫米左右（短水准基线为26米）。
The research work of this article is the hardware design of receiving and transmitting unit in the under-water acoustic head of Long Range Ultra short Base-Line Positioning System.
这套系统主要由水下应答器、传载水下声头和船载主控机组成。本论文的研究工作主要是长程超短基线定位系统中传载水下声头内收发单元的硬件设计与实现。
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