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- An UWA communication framework utilizing FH-SS under low sound energy condition is proposed.Implemetation of coding and decoding has been presented. 构建了一种在低声能条件下的水声跳频通信系统,给出了系统编解码技术的实现方法。
- The three main characteristics of UWA channels are studied thoroughly, and their influence on the UWA communication system are completely analyzed. 论文系统分析了水声信道的三大特性,并深入研究了其对水声数字通信系统的影响。
- With the LFM pulse frame synchronization method, the performance of UWA communication system based on DPSK is apparently improved. 同时运用线性调频脉冲帧同步法,改善了基于差分相移键控的水声数字通信系统的性能。
- The dissertation put forwards a method of displacement waiting auto-synchronization with match filters for UWA communication. 提出了一种基于匹配滤波器的位移等待式自同步方法的水声跳频通信同步技术方案;
- AI Yuhui,ZHOU Yuli.Research on m sequence used in spread-spectrum UWA communication[J].Journal of Harbin Engineering University,2001,21(3):15-18. [1]艾宇慧;周瑜丽.;m序列扩频谱水声通信研究[J]
- OFDM (Orthogonal Frequency Division Multiplexing) is a method that can combat multipaths, fully use the frequency band and has high data rate, and has a promising future in UWA communication. 摘要正交频分复用(OFDM)技术具有抗多径、频带利用充分、传输数据率高的优点,在水声通信中具有重要的发展前景。
- Narrow channel band,severe multipath interferences and severe channel attenuation have demonstrated the great complexities and difficulties of high-speed UWA communications. 信道通带窄、多途干扰强、衰落严重是水声通信高速可靠传输信息的主要障碍。
- A reflected signal on a communication channel. 一种在通信信道上反射回来的信号。
- I am in communication with him on this subject. 关于这问题,我正和他交换意见。
- The essence of language is communication. 语言的本质是沟通。
- Language is an instrument for communication. 语言是交际的手段。
- We had a discussion on language and communication. 我们就语言和交际问题进行了讨论。
- Radio communication has annihilated space. 无线电通讯已消除了空间的阻隔。
- In data communication, transmitted and received messages. 在数据通信过程中,被发送和接收的报文量。
- This area has not been covered by the communication net. 这个地区还不在通讯网的覆盖之内。
- Communication by the exchange of letters. 通信联系通过信的交换而进行的交流
- In radio communication, either short or long waves may be used. 无线电通讯可以采用短波也可以采用长波。
- long range UWA communication 远程水声通信
- A UWA degree is an internationally recognised qualification. 西澳大学的学位国际认可。
- In 2005, two current UWA academics are Nobel Prize Winners. 2005年,西澳洲大学的两位教授更获颁授诺贝尔奖。