查询词典 transmitter-receiver

In a system of space optical communication,it will influence to bit error rate of the communication system when the optical transmitter wiggles as vibration of the satellites platform.

在空间光通信系统中，由于卫星平台的振动，使得光发射机发生摆动，从而对通信系统的误码率产生影响。

Valdemar Poulsen demonstrates the first arc radio transmitter for high-quality voice transmission in his Palo Alto laboratory.

1903年，丹麦人波尔森展示了首个弧无线电发射机的高品质语音传输在他的Palo Alto实验室。

The acoustic phased arc array transmitter can be used in azimuthal acoustic reflection logging. It evaluates the azimuthal variation of borehole formation acoustic properties, which is useful for complex reservoir recognition and evaluation.

这种相控圆弧阵声波辐射器用于方位反射声波测井新技术中，可评价井旁地层声学性质沿井周方向的变化，有助于复杂油气藏的识别和评价。

The acoustic phased arc array transmitter can be used in azimuth acoustic reflection logging and evaluate the azimuth variation of acoustic properties in the borehole formation and also be useful for complex reservoir recognition and evaluation.

这种相控圆弧阵声波辐射器可用于方位反射声波测井新技术中，能评价井旁地层声学性质沿井周方向的变化，有助于复杂油气藏的识别和评价。

The numerical simultion results were analyzed on azimuthal characteristic of acosutic field. The analysis results show that the acoustic energy generated by the phased arc array transmitter radiates onto sidewall in certain azimuthal range.

对模拟声场的方位特征进行的分析表明：相控圆弧阵声波辐射器产生的声波能量基本向某一周向角范围的井壁入射；进入地层的声波在一定周向角范围内传播。

The arc array transmitter is composed of many ceramic flexural vibrators which are arranged in an annulus. Directional radiation is realized by controlling the vibrating phase of each vibrator.

声波测井圆弧阵发射换能器由多个压电振子沿着圆周排列，通过控制各个振子的激励时间可以实现向某个方位方向的声波辐射。

Much of the installed base of pressure transmitters needs to be upgraded to leverage PAM applications, representing a huge opportunity for suppliers to replace existing conventional transmitters with smart units," according to Analyst Allen Avery, the principal author of ARC's "Pressure Transmitter Worldwide Outlook.

ARC&全球压力传送器前景&报告的主要作者、研究员Allen Avery表示：&大部分安装了压力传送器的工厂需要升级以促进PAM应用，这对供应商而言代表了一个替换现有传统传送器为智能传送器的巨大商机。&

The scheme is executed in two steps: 1 We detect and select a best-conditioned subchannel in a power control sampling period; 2 For the selected subchannel, the transmitter adjusts the power by conventional fixed step size close-loop power control algorithm and alterable step size close-loop power control algorithm respectively.

此方案分两步执行：（1）在一个功率指令更新周期内，从所有子载波中选出一个最佳的传输子载波；（2）对选出的此子载波，分别采用基于固定步长的传统闭环功率控制算法和基于可变步长的改进闭环功率控制算法动态的调整其发射功率。

But one of its advantages is that, unlike other devices, it does not require a bulky generator box to house the transmitter.

但与其他设备不同，这种设备的优势之一是它不需要巨大的发电盒子来容纳传感器。

Specifically include: camera, wireless surveillance equipment, DVR, monitors, car chargers, starter and FM transmitter, etc..

具体包括：摄像机、无线监控设备、DVR、显示器、车载充电器、启动器及FM发射器等。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。