同步

Next referring to a MIMO-OFDM system, the design criteria of preambles are derived. After that different patterns of preambles are discussed and simulated.

然后，本文根据MIMO-OFDM的系统模型，讨论了前导字的设计准则和几种实现结构帧同步、粗符号同步的表现，并对802.16d协议的前导字结构进行了解释。

Clock drift and undetermined characteristic of transmission, will deteriorate the precision of clock synchronization of distributed system.

时钟漂移与传输延时的不确定性是分布式系统时钟同步中一个不容忽视的问题，它直接影响同步精度。

This paper introduces the application of the high precision clock of GPS in the positioning system, including the synchronization in wireless communication link and in time-measurement of acoustic signal.

本文介绍了GPS高精度时钟在定位系统中的应用，包括对无线通信链路的同步和水声信号时间测量的同步。

IEEE 1588 precision clock synchronization protocol can effectively solve the time synchronization problem in distributed measurement and control system,and it is also one of the core technologies of the new test system standard bus LXI.

IEEE 1588精密时钟同步协议有效地解决了分布式测控系统时间同步问题，也是新测试系统总线标准LXI的核心技术之一。

The design scheme of synchronous control system on production s process of color plate is introduced.

介绍了彩钢板自动生产线的主驱动变频同步控制系统方案，阐述了主驱动变频同步控制系统的设计原理。

A description is made on the problems of open die forging for synchronizer cone naves .

论述了同步器锥毂开式模锻存在的问题，提出了同步器锥毂闭式精锻新工艺和新型模具结构。

Results of the experimentation compared with the simulation exhibited superiority of the stator current and pull-in torque, therefore the new hybrid motor should be more valuable in practical applications.

实验测试的数据以及仿真的结果表明，在稳态电流与同步牵入转矩方面的性能与磁滞电机相比永磁磁滞同步电机的性能有明显的改善，它是一种很有实用价值的新型电机。

The statistical properties of mobile radio channel are studied by means of computer simulation, especially in wideband channel.

应用准同步思想，构造了新的扩频码，扩频码在零相移附近具有极低的互相关值，满足准同步码分多址系统的要求。

The SYNCHRO METER rotates clockwise,when reaches to 12 clock,close the ACB, then turn off the SYNCHRO METER, carry out load-sharing (raise the keep-running D/G speed or slow down the de-parallel D/G speed).

当同步表指示灯顺时针方向旋转，到达12点钟位置之前，将&ACB&和闸，和闸成功后，关掉同步表开关，然后进行负载转移（即增加运行发电机的转速，减少将要解列的发电机转数）。

It s rope trolley type has mainly single trolley basic type with wire winding system, single trolley with through grab wire coinding type, double trolley type with main trolley and compensation trolley ,single trolley with four drums and planet reducer synchronous type and single trolley with four drums and electric synchronous type.

其牵引小车的型式主要有单小车钢丝绳缠绕系统基本型，单小车钢丝绳贯穿抓斗缠绕式，带有主小车和补偿小车的双小车式，单小车四卷筒行星减速驱动同步型，单小车四卷筒电气同步型。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。