蜂窝技术

In recent years, wireless location technology based on cellular network has been focused.

1引言近年来基于蜂窝网络对MS进行定位估计的无线定位技术受到广泛的关注。

The older examples include the transistor, the laser and cellular wireless technology.

过去的一些例子包括晶体管、激光以及蜂窝无线技术。

Finally, we expound the applications of the wireless location technology in the cellular system and point out some topics about wireless location which will be studied in the following days.

最后，阐述了蜂窝系统中无线定位的应用，提出了无线定位技术有待进一步研究的课题。

Mandatory demand of the government and markets own driver, make the upsurge of wireless orienting technology research of cellular network appeared in the world.

由于政府的强制性要求和市场本身的驱动，国际上出现了基于蜂窝网络无线定位技术的研究热潮。

GSM (Global System for Mobile Communications) is an open, nonproprietary system that is the dominant cellular technology throughout the world today.

GSM是非专有的开放系统，它是目前遍布全球的主导的蜂窝电话技术。

The technology is used in cellular telephone systems in the 800-MHz and 1.9-GHz bands.

在800MHz和1900MHz频段上的蜂窝电话系统采用此技术。

A device that combines data modem and cellular telephone transceiver technologies in a single unit.

一种设备，负责将数据调制解调器和蜂窝电话收发信技术组合在一个设备单元里。

With that, emphases were be put on the basic principle、methods and its advantages in the study on the characteristic of the microcell based on ray tracing method of determinate analysis means.

接着重点阐述了利用射线跟踪技术这种确定性的分析方法预测无线电波传播特性的基本原理、方法，以及它在微蜂窝小区的电波传播特性研究中的优势。

The main works are as follows:The dissertation gives a discussion and generalization all kinds of location methods fundamental principle then compares these methods performance, realizable complexity and applied circumstance.

本文在深入研究了无线蜂窝通信系统的定位技术基础上，阐述了作者在其中几个问题上所做的工作详细讨论和总结了各种定位方法的基本原理，并且对这些方法的性能、实现复杂度和适用环境进行讨论比较。

In the predicable future, mobile cellular network will still be the most popular technology for Wireless Internet.

可以预见的是，移动蜂窝网络以其成熟的技术、可靠的服务质量保证以及高服务覆盖率，将继续在未来的无线互联网业务中扮演主要角色。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。