The researches on the combat effectiveness of radarew system focus on the abilities , applications and effectiveness of radar ew equipments and systems . in order to make quantificational analyses , mathematics modeling and distributed simulation are adapted 对雷达对抗系统作战效能评估研究正是从定量的方面对雷达对抗装备和系统的作战能力、应用方式及其对抗效能进行研究,并通过数学建模和分布式仿真推演进行计算和分析。
The main researches are as follow : 1 . the ground , the former conditions , the key technology and the mode of pcma are researched and analyzed first , then produce a way of frequency estimate via correlation , by compared with other frequency estimate methods 本文主要研究工作如下: 1 .本文首先分析和研究了pcma技术的产生、前提条件、特点、关键技术和应用方式等,并通过与常用的频率估计方法作比较,找到了一种从相关值入手的思路。
The study of the eva value evaluation model not only helps to perfect the value evaluation system info but helps to improve the decision ability of the investors and administrators , which has long - term effect both in theory and in practice 加强eva价值评估模型的研究,尽快探究其在我国企业的应用方式不仅有利于完善我国的价值评估理论体系,而且有利于提高投资者以及管理者的决策能力,因此,对eva价值评估模型的研究具有重要的理论与现实意义。
In the name of divinatory historian , the differences between the diviners ' real identities and the differences between the divinatory methods are significant and help us examine the transmission , acceptance , and textualization of " zhouyi " in the spring and autumn period 其间在“卜史”名义之下，掌易者实际身份之差异及《易》之实际应用方式之差异之于考察春秋时代或谓《左传》 、 《国语》时代《周易》文本之传播、接受及其形成情况皆负重要意义。
Electronic commerce ( ec ) is a new model of business in the open network environment of the internet , based on browser / server application mode , which realizes the customer ' s online shopping , online business between the traders and electronic online payment 电子商务( electroniccommerce ，简称ec )是在internet开放的网络环境下，基于浏览器服务器应用方式，实现消费者的网上购物、商家之间的网上交易和在线电子支付的一种新型的商业运营模式。
The database not only forms the basis for city planning , land management , engineering works , administration and security activities , it also provides potential for the smo and users to develop more new products and applications . an example is the community map on internet project 该数据库不仅是城市规划、土地管理、工程计划、行政工作及保安事宜的参考基础，亦是极具潜力的资源，测绘处及使用者可利用数据库的资料发展更多新产品及应用方式。
Firstly , the discrete multi - tone processing in an adsl central office - side interface card is detailedly introduced . the processing mainly includes timing , framing , interleaving , forward error correction , cyclic redundancy check , constellation encoding , inverse fast fourier transform processing , prefixing , d / a converting , and amplifying . secondly , a kind of interface named utopia level 2 is used as the network interface , with which many adsl devices are linked with one atm layer 本文比较详细地阐述了数字用户线接入模块( dslam )开发方案中， adsl局端接口模块的dmt编码与调制过程，讨论了其组网应用方式以及基于atm的网络侧接口utopia2技术，分析了adsl与其它宽带接入技术的相互联系和优缺点，并介绍了方案中所采用的一些关键技术，包括在线插拔技术、系统同步启动和故障自动重起技术以及高速数字信号完整性的保证技术等等。
From the principle of cryptography , this dissertation discusses all components of pgp . complying with the standard of openpgp and e - mail , the author improved the method of pgp ' s application and presented a pgp ' s utility system based on web used for e - mail . according to experimental system , the operational principle and mode is illustrated 本文从加密学的原理出发，对pgp的各个组成部分进行研究分析，并遵照pgp和电子邮件的应用标准，对pgp当前的应用方式进行改进，提出了一个用于电子邮件的基于web的pgp加密应用系统，阐明了具体的工作原理，对照笔者实际开发的系统模型，详细地阐述其具体的工作方式。
This article has studied the deficiency and shortcoming of various kinds of methods of the parameter measurement of transmission line at present , proposed the measurement under operation on the basis of gps , researched gps application way and error that may appear in the power system synchronal sampling , put forward the parameter computing technology based on the information of both sides of transmission line , which solved some problems that exist in the parameter measurement , especially the problem that exist in the zero - sequence parameter measurement of transmission line with mutual inductance 本文研究了目前输电线路参数测量的各种方法，分析了其中存在的不足和缺点，提出了基于gps的输电线路参数在线测量方法，研究分析了gps在电力系统同步采样中的应用方式以及可能出现的误差，在同步采样的基础上提出了基于双端信息的线路参数计算方法，较好地解决了输电线路参数测量中存在的一些问题，尤其是多回互感线路零序参数测量困难的问题。
It is lacking of authoritative when the argument takes place . in order to overcome the shortness above , cooperating with technical intendance office , we present a new design of clock software based on client sever model , using network time baseline as time - checking , keeping the data in public sever to improve security and veracity of the data ' s about time - checking 为克服以上缺点，通过与陕西省技术监督局的合作，我们提出新的计时软件的设计方案，基于客户服务器模型，以网络时间基准作为时间证据的基准，并将该数据保存在公用服务器的应用方式，以提高作为时间证据的数据的安全性和准确性。
