A digital communication system is introduced to replace analog system used in underground locomotive carrier communication system.
提出了在架线电机车载波通信系统中，用数字通信取代模拟通信方式。
The characteristics of power line channel are the foundation of designing the low voltage power line carrier communication system.
低压电力线信道特性是设计低压电力线载波通信系统的基础。
Analyzing the automobile carrier communication system from the communication point, including signal coding, decoding, modulating and demodulating and the receiver strategy.
从通信系统的角度分析了汽车载波通信系统应该采取的策略，包括有信号的编码、解码，调制、解调，及接收端策略。
The measurement and examination of wave trap coil and coupling filter used for power line carrier communication system are an important part to ensure the electric power system operating normally.
为解决现有电力载波通信系统中线路阻波器、结合滤波器的性能测试方法中存在的问题，提出了一种集自动测试、高速采样和数据处理于一体的新型智能式测试系统方案。
The study of the aircraft carrier battle group (CVBG) communication countermeasure system is a very important problem.
航母战斗群通信对抗系统的研究是一个十分重要的课题。
An intelligent lighting system for railway goods yard based on spread spectrum power line carrier communication technique is proposed.
用扩频电力线载波通信技术设计了铁路站场智能化照明系统。
Japanese, a symbolic system of its social communication, is a component of the Japanese culture as well as a carrier.
日语不仅是作为社会交际工具的符号体系，它也是日本文化的载体和日本文化的一个组成部分。
The electric energy data tele-metering system is an important constituent in power system automation and the implementation of power line carrier communication is a key component.
远程抄表系统是实现电网自动化、电力商品化的重要技术保证，其中配电网载波通信系统的实现又是其中很重要的环节。
In a digital communication system, usually there exist carrier frequency offset between the sender and the receiver.
在数字通信系统中，发送端和接收端的载波往往存在一定的频差。
In wireless communication system, there is a large frequency bias between carrier frequency and local oscillating frequency. AFC is contributed to eliminate it.
在无线移动通信中，接收机的本地振荡频率和载波频率之间往往存在较大的频率偏差，AFC用于克服此频偏。
This paper issues a kind of Angle measuring tracking method for conical scan without hollow motor in moving carrier satellite communication system.
提出了一种在动载体卫星通信控制系统中，无需空心电机的圆锥扫描测角跟踪方案。
The automatic remote measuring system of the carrier communication is how to use a main station to control the unmanned carrier, remote substations.
本文主要叙述在六十路电缆载波通信系统中，如何实现有人站对所辖大量无人站设备进行自动监视和测试——即自动遥测。
But they are very expensive and can't be popularized. So because of it, I design a performance test virtual system of power line carrier communication network.
但是它们都非常的昂贵，不能普及，本文针对此，设计了电力线载波通信网络的网络性能虚拟测试仪。
The core of the controlling system is the single-chip computer. and the conveying of the signal adopts the communication technology of powerline carrier wave.
系统控制核心是单片机，信号的传输采用电力载波通讯技术。
Then, the system block of two chaotic communication system is given, I, e. chaotic carrier modulation system and chaotic carrier key system.
在此基础上给出了两种混沌保密通信系方案，即混沌载波调制系统和混沌载波键控系统。
There are many communication modes in remote monitoring system, such as optical fiber, wireless transmission, cable mode, power line carrier, etc.
远程在线监测系统可以选择多种通信方式：光纤、无线、电缆、电力线载波等等。
A lighting supervisory control system of railway stations based on power line carrier communication technology is introduced with its operation principle, system structure and engineering application.
介绍了一种基于电力载波通信技术的铁路车站照明监控系统的工作原理和组成，并以工程为例说明系统的实际应用情况。
A computer serial port communication system using laser beam as a carrier is proposed, with the emphasis on its hardware composition and software design consideration.
报道了一种以激光为载波通过计算机串口实现计算机之间通信的实验装置。重点介绍了该系统的硬件构成及软件设计方案。
Digital phase lock loop base on fuzzy logical control, which is used to recover carrier in communication system.
基于模糊逻辑控制的数字锁相环，用于通信系统中的载波恢复。
As a kind of semiotic system of human communication, language is the carrier of culture, which reflects different cultural psychology of different nations.
语言作为一种人类交际的符号系统，具有承载文化的功能，不同的民族文化反映了不同的民族文化心理。
The study of the aircraft carrier battle group (CVBG ) communication countermeasure system is a very …
航母战斗群通信对抗系统的研究是一个十分重要的课题。
This paper presents the approaches of link to system mapping for OFDM/multi-carrier mobile communication system by analysing some materials.
如果他们用于基于OFDM技术的多载波通信系统评估不是很有效，迫切需要新的有效的映射方法来更好地评估OFDM通信系统。
This system use electric power carrier wave communication chips, the channels between which are changed to telephone lines, to realize the long-distance communication of data.
本系统还运用电力载波通信芯片(将信道改为电话线路)实现了数据远程通信。
The system works with SC1128 signal rush and AT89C51 single chip to kernel. With net communication and electric carrier technology to complete control long-distance machine.
SC1128 扩频通信芯片和AT89C51单片机为核心，结合网络通讯和电力载波技术的远程控制技术的应用。
Language is a system of symbols based on physiology, psychology and physics. It is a specific social action and a carrier of information used for human communication in a society.
语言是基于生理学，心理学和物理学的符号系统，既是特定的人类行为，又是人类信息交流的载体。
The technology of low voltage powerline carrier spread spectrum communication and the auto meter reading system based on it are introduced in this paper.
本文就低压电力线扩频载波技术及其在自动抄表中的应用进行了研究。
A power line communication system based on the special carrier chip LM1893 is introduced in the paper.
根据教室电器节能系统的需要，介绍了基于电力线载波芯片LM 1893的电力线载波电路的设计。
A power line communication system based on the special carrier chip LM1893 is introduced in the paper.
根据教室电器节能系统的需要，介绍了基于电力线载波芯片LM 1893的电力线载波电路的设计。
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