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- two acoustics channels 双声道
- In 2000,American navy successfully sends E-mail through the link of the underwater acoustic channel. 在2000年,美国海军成功通过水声链路并接入Internet 网络发送E-mail,这具有重要的战略意义;
- The two systems of government are polar opposites. 这两种政体正好相反。
- The business is owned by two partners. 这家商行为两名合伙人所拥有。
- According to the time delay estimation model of multi-path effects in the underwater acoustic channel,computer simulation is carried o... 模拟结果表明,该方法对监测浅海航道水深是可行的。
- Forward feedback neural network (FNN) using a variable step size BP algorithm is used to implement underwater acoustic channel equalization. 文中对变步长BP算法的前馈神经网络进行了理论和算法分析,并通过计算机对其实现水声信道盲均衡进行了仿真。
- A unit used to express relative difference in power or intensity,usually between two acoustic or electric signals,equal to ten times the common logarithm of the ratio of the two levels. 分贝通常表示两个声音信号或电力信号在功率或强度方面的相对差别的单位,相当于两个水平的比率的常用对数的十倍
- The problem of error control should be sufficiently considered for the image transmission coding in underwater acoustic telemetry,because data are prone to errors over underwater acoustic channels. 提出了一种高误比特率传输条件下的图像编码方法,它适用于水声信道的图像传输。
- The area of target scatterance varies with target angle, and it gets its minimum.However, the hunt cingulum formed by the two acoustic homing torpedoes can always shroud the target scatterance. 目标散布随目标舷角的变化有最小值,但两雷齐射声自导搜索带始终能够遮盖目标散布;
- The dissertation analyses the principle of data transmission with FH communication to anti-multi-path in shallow water acoustic channels, and designs a method to implement data transmission in UWA. 分析了采用跳频通信技术实现水声数据传输的抗多途干扰原理,并提出了一种水声跳频通信系统的设计方案;
- She has two cars and in addition a motorboat. 她有两辆轿车外加一艘汽艇。
- A model of submarine attacking target by launching two acoustic homing torpedoes with parallel salvo was given.The law of obscuring target scatterance of two torpedoes by parallel salvo was studied. 摘要建立了潜艇使用声自导鱼雷两雷平行航向齐射攻击目标的数学模型,对两雷平行航向齐射遮盖目标散布的规律进行了研究。
- The meat marinated in the brine for two days. 这块肉在盐水里泡了两天。
- At that time he had two helpers. 当时他有两个助手。
- A unit used to express relative difference in power or intensity, usually between two acoustic or electric signals, equal to ten times the common logarithm of the ratio of the two levels. 分贝通常表示两个声音信号或电力信号在功率或强度方面的相对差别的单位,相当于两个水平的比率的常用对数的十倍
- Kindly send us two samples of each class quote for. 报价时,请对每一个等级的各寄两个样品。
- The two boys decided to play truant and go fishing. 这两个男孩决定逃学去钓鱼。
- A small adjustment will equalize the temperature in the two rooms. 稍作些调节就会使两间房内的温度相等。
- According to the character of underwater acoustic channel, MIMO system is used in underwater acoustic channel taking the advantage of improving channel capacity, and providing MMSE - DFE equalzer to reduce the effect of ISI in the receive end. 针对水声信道特性,提出了在水声信道下利用MIMO技术提高信道容量,并在接收端进行MMSE-DFE均衡来消除符号间干扰(ISI)。
- People in this locality used to take two meals a day. 这儿的居民过去每天吃两餐饭。