通信的

In this paper, firstly we researched the relationships of the communicating distanceand the channel characteristic, the effect of the multiple scattering to the laserpropagation, the requirement of the laser communication to the ATP system and theway to determine the angular dispersion and receive field of view. It is proved that inlight haze weather, letting the input and output laser\'s wavelength are diferrent witheach other, after passing by the filter, it can avoid backward scattering effectually andfor the communication within 15km, the influence of the multiple scattering inatmosphere can be ignored.

论文对通信距离与信道特性、多次散射对光传输的影响、无线激光通信对ATP带宽的需求以及光束发散角和接收视场角等重要系统性能参数和指标进行了分析和研究，证明了在轻霾天气状态下，使系统中两终端发送的激光束波长各不相同，经过光束滤波，可以有效地消除后向散射干扰；在15km的通信距离范围内，大气中的多次散射对无线激光通信光传输的影响可以忽略。

This situation, especially for circuital resource administration, has brought about big challenge. We need to build a set of management system to satisfy the need of communication resource management, which is high-effect.

作为电力安全生产的支撑网络，电力通信网络也在随电网的发展不断扩大覆盖范围，这对通信资源管理特别是电路资源管理带来了严峻的挑战，迫切需要建立一套以数据为中心的通信资源管理系统来满足系统管理及通信调度的需求。

A first recording medium (1) containing a content encrypted by a content encryption key, a portable second recording medium (2), a terminal (10) to which the first recording medium and the second recording medium can be detachably attached, a communication device (20) to which the second recording medium can be detachably attached, and a server (40) connected to a communication device.

配备存储用内容密钥加密的内容的第1存储介质(1)、可搬运的第2存储介质(2)、可装卸第1存储介质和第2存储介质的终端(10)、可装卸第2存储介质的通信装置(20)、以及连接通信装置的服务器(40)，终端将用公开钥对通信钥和持有人ID加密后的第1加密数据写入第2存储介质，安装于通信装置，并送到服务器。

According to communication system frame of passing SIAS, this article designs a three-layer configuration to communication system, discusser every layer's function.

参考目前变电站综合自动化的通信系统构成，从总体上把该通信系统构成设计为三层，讨论了每一层的功能；详细介绍了通信系统的核心――通信管理机的设计，重点说明了IEC870-5-103规约在其中的应用过程，讨论了在应用中对所实际问题的处理办法。

For the breaker's "four remotion" communication requirements, the paper studies Modbus fieldbus communication protocol which is widely used in low-voltage electrical fields, and bring forward a plan of intelligent controller communication network based on Modbus fieldbus, which realizes the communication of intelligent controller and PC, and is good for the PC's centralized monitoring and management to the intelligent breaker.

针对断路器的"四遥"通信功能要求，论文研究了在低压电器领域广泛使用的Modbus现场总线通信协议，提出了基于Modbus总线的智能控制器通信网络设计方案，实现了智能控制器和PC机的双向通信，有利于实现PC机对智能化断路器的集中监控和管理。

The development and significance of chaology are introduced firstly. The general requirement of communication system and the application potential in secure communication are expatiated. The chaotic secure communication methods home and abroad are also summarized, including chaos spread spectrum communication, chaos key-shifting, chaos parameter modulation, chaos masking, chaos CDMA. The exiting problems and development direction are also pointed out respectively.

介绍了混沌学的发展过程和意义，阐述了通信系统的一般要求和混沌在保密通信中的应用潜力，综述了国内外现有的混沌保密通信方法，其中包括：混沌扩频通信，混沌键控，混沌参数调制，混沌掩盖，混沌数字码分多址等五大类，指出了各自存在的问题和发展方向。

To remedy the deficiency of intelligent electronic devices in data communication, Guangdong Power Test and Research Institute developed the PT Handshaker communication manager for substations, thus allowing real time data communication between IED and RTU or dispatching gate way, i.

针对使用的智能化电子设备在数据通信方面存在的问题，广东省电力试验研究所自行开发了PT Handshaker变电站通信管理器，来实现IED与RTU或调度端前置机的实时数据通信，即实时的通信协议的转换和数据处理。

I plan to work in a telecom company, or telecom-related fields so that I can better use my well-accumulated professional knowledge , stills in my last three years'working in the telecom industry.

从事通信类或与通信类相关的职业，以便更好的发挥自己从事3年通信工作所积累下的丰富的专业知识和技能，包括负责通信设备的日常维护，无线网络规划，优化。

Specialized introduction: This specialized raise has the electronic technology and the information system elementary knowledge, can be engaged in each kind of electronic installation and the information system research, the design, the manufacture, the application and the development higher project technology talented person Main curriculum: The signal and the system, the digital signal processing, the correspondence principle, the microcomputer principle and the connection technology, the monolithic integrated circuit principle and the application technology, the DSP technology and the application, the EDA technology, the construction of data, embedded Linux using the programming, the feeling measure technical, the electric circuit theory series curriculum, the computer technology series curriculum and so on individual hobby * software and hardware research and development computer correspondence literature ping pong photography The experience and the personal experience * 2006.6.29-7.8 compile the staff management system management system using the C language, its basic service activity includes: The staff information warehousing, the revision, the inquiry, the insertion, deletes the staff information and so on * 2006.7.10-7.20 monolithic integrated circuit curriculum design period completes the stopwatch the design, namely the initialization timer is 99:99, 0 starts using the monolithic integrated circuit timer fixed time, fixed time arrives when 0s to transmit the signal to cause the buzzer bell, and may realize suspends, the continuation and the replacement function * 2007.7.2- 7.8 practises in Luoyang Big dragon Peony Communication facility Limited company, does has liquid crystal display monitor telephone one, simultaneously visited has served under somebody's banner the correspondence company, and studied has simulated the telephone the design electric circuit, had understood its basic principle * 2007.7.4- 7.18 completed the DSP curriculum in the school to design, realizes the FIR numeral filter, namely transmitted 25 from DSPThe height level, after advocates AC01 D/A to transform the simulation square-wave, then passes to again from AC01 carries on A/D to transform, produces the data signal, after the DSP numeral filter, finally produces the sine wave * 2008.8.1-8.15 to practise in the Zhejiang Jiang hua abundant power tool limited company, studies the computer software and hardware maintenance.

专业介绍：本专业培养具备电子技术和信息系统的基础知识，能从事各类电子设备和信息系统的研究、设计、制造、应用和开发的高等工程技术人才主要课程：信号与系统、数字信号处理、通信原理、微机原理与接口技术、单片机原理与应用技术、DSP技术及应用、EDA技术、数据结构、嵌入式Linux应用编程、感测技术、电路理论系列课程、计算机技术系列课程等个人爱好＊软硬件研发计算机通信文学乒乓球摄影实践经验及个人经历＊ 2006.6.29-7.8 利用C语言编写员工管理系统，其基本业务活动包括：员工信息入库，修改、查询、插入、删除员工信息等＊ 2006.7.10-7.20 单片机课程设计期间完成秒表的设计，即初始化定时器为99：99，利用单片机定时器0开始定时，定时到0s时发送信号使蜂鸣器响铃，并可实现暂停、继续和复位功能＊ 2007.7.2- 7.8 在洛阳巨龙牡丹通信设备有限公司实习，做有液晶显示屏电话机一部，同时参观了旗下通信公司，并学习了模拟电话的设计电路，懂得了其基本原理＊ 2007.7.4- 7.18 在校完成DSP课程设计，实现FIR数字滤波，即从DSP发送25个高低电平，经主AC01 D/A 转换成模拟方波，然后再传给从AC01进行A/D转换，生成数据信号，经DSP数字滤波，最后生成正弦波＊ 2008.8.1-8.15 在浙江华丰电动工具有限公司实习，学习电脑软硬件维护。

Through the incoming call transfer subsystem, the invention transfers users' incoming calls to the fixed satellite communication terminal on the plane, thus making users on plane able to communicate with users on the ground, and realizing individual air communication.

本发明利用来电转接子系统将用户的来电在乘坐飞机过程中的通信业务转移到飞机上的固定卫星通信终端，使乘坐飞机的用户随时可以与地面上的用户进行通信联系，实现了个人通信在空中的延续。

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％。