通信系统

In this paper,ADSP-TS201 Digital Signal Processoris adopted to design the digital intermediate frequency communication reconnoitering system.

采用ADSP-TS201高速数字信号处理器进行数字中频通信侦察系统的设计，利用DSP超高性能的处理能力以及由可编程逻辑器件FPGA支持的高速接口数据交换能力，实现了通用的通信侦察信号接收处理平台。

This paper introduces the implementation of the communication between PC and PLC based on the cylinder processing machine .

对基于缸体加工机床的PC与PLC组成的集散控制系统的通信实现进行介绍，包括通信协议、硬件连接及软件设计。

A system and method for automatically directing a communication antenna to point to a desired wireless communication transceiver, is presented herein.

这里提出了一种自动引导通信天线指向希望的无线通信收发信机的系统和方法。

Multiple-input multiple-output based on multiple antenna array and space time coding techniques can take full advantage of the trait of wireless channel to improve the system capacity and quality of communications, without increasing the transmitting power and frequency usage, therefore, they has become one of the key technology hotpots of current and future wireless communications.

基于多天线阵列的多输入多输出和空时编码技术，充分利用无线信道特性，可以在不增加发送功率和频谱的条件下提高整个系统的容量和通信质量，已成为当前及未来无线通信关键技术的研究热点。

The purpose of this thesis is not only to overcome multipath interference by spread spectrum but also to improve the performance of the system by employing RAKE receiver to recombine some multipath signals.

扩频技术特别是直接扩频技术也是对抗多径干扰的一种非常有效的技术，其中的RAKE接收技术不但能够抑制干扰；而且还能利用多径干扰的能量提高信噪比，极大的改善了系统的性能，并且扩频技术是现在唯一能工作在负信噪比条件下的通信技术，所以扩频技术在水声通信中的应用也越来越受到关注。

Based on the architecture characteristics of a Multi-Transputer concurrentprocessing system, this paper analyzes channel communication on Transputer networkand the relation of task traffic overhead with job run efficiency.

本文基于Multi－Transputer并行处理系统的结构特点，分析了Transputer网的通道通信及任务通信开销对作业运行效率的制约关系。

Progresses of millimeter wave subcarrier fiber communication technology for future generation mobile communication are summarized in this paper.

综述了用于下一代移动通信的光纤毫米波副载波通信技术的研究进展。介绍了系统的基本构想和涉及的关键技术。

Substation automation is the secondary substation equipment (including measuring instruments, signal systems, relay protection, automatic devices and remote devices, etc.) through a combination of functions and optimize the design, use of advanced computer technology, modern electronic technology, communication technology and signal processing technology, on all major substation equipment and transmission and distribution lines of automatic monitoring, measurement, automatic control and computer protection, and integrated communications and scheduling automation features.

变电站综合自动化是将变电站的二次设备（包括测量仪表、信号系统、继电保护、自动装置和远动装置等）经过功能的组合和优化设计，利用先进的计算机技术、现代电子技术、通信技术和信号处理技术，实现对全变电站的主要设备和输、配电线路的自动监视、测量、自动控制和微机保护，以及与调度通信等综合性的自动化功能。

At first, an outer surface electric intensity integral equation, involving the resistive coupling of earth, is put forward for the buried finite-length conductor segment.

本文研究通信线路附近存在金属导体系统时，电力线路对通信线路的电磁危险影响问题，本文研究内容和结果如下： 1。

As the preview of the final, the three members explained to us the buildups, applications and manipulation of the system in English. Combining computer with communications not only materializes our feature, but also joints this theme :GOING BEYONGD THE BOUNDARY!

作为决赛的预演，小组的三名成员用全英文向我们说明了系统的组成应用，操作而电脑与通信的结合，不但体现出了我们北邮的通信特色，也更加贴合了大赛的题目GOING BEYONGD THE BOUNDARY！

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。