=Unconditioned Response 无条件响应, 无条件反应[回答] =Underwater Communications System 水下通信系统 =University of California, San Francisco 旧金山加利福尼亚大学… .
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To improve the channel capacity, a new Alamouti space-time block coding (STBC) multiple-input multiple-output (MIMO) system was employed for underwater communications.
为了提高水声信道的信道容量，将多输入多输出(MIMO)技术用于水声信道，提出一种基于空时分组编码(STBC)的MIMO通信系统。
The error rate model is one of the key indexes of underwater acoustic spread spectrum communications system.
误码率模型是水声扩频通信系统性能的关键指标之一。
To prove the system can be used in underwater acoustooptic communications, with this system, the acoustic frequency and intensity of underwater sound source are detected.
为了证明系统能够应用于水下声光通信，进行了对水下声源发出的声波频率和强度的探测实验。
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