By analyzing the inerference in power plant in view of dcs ( distrbuted control system ) used in power plant , the hardware technics of anti - interference , including isolating , screening , grounding , balance and power distribution and the software technics of anti - interference in microcomputer monitoring and control system of power plant are introduced simultaneously 以分散控制系统为例，分析了火电厂中的干扰，介绍了火电厂微机监控系统中的抗干扰技术，包括隔离、屏蔽、接地及电源干扰的抑制等，同时介绍了软件抗干扰技术。
To improve anti - jamming technique by spread spectrum close to monochromatic frequency , so that enhance the ability of anti - active - jamming and anti - passive - jamming , anti reconnaissance , anti - radiation missile , anti - stealth , by means of multi frequency spread spectrum and hopping spectrum instead of mono - frequency spread spectrum , realizing strong processing system for anti - interference signal , providing the method of generating of chirp signal and corresponding matched filter system 摘要为改进线性调频雷达系统所采用的在单色频率点附近扩谱抗干扰技术，加强制导雷达站具备抗有源、无源干扰，反侦察，抗硬杀伤的反幅射导弹和反隐身的能力，通过将单频点扩谱改为多频点扩谱跳谱，实现了高抗干扰信号处理系统，给出方案中在中频段实现的线性调频信号产生方法以及对应的匹配滤波处理系统。
In chapter three , the theory of particular anti - jamming technologies are analyzed , especially the spread spectrum ( ss ) is one of the most important anti - jamming technologies , including direct sequence spread spectrum ( dsss ) , frequency hopping spread spectrum ( fhss ) and other improved technologies 第三章研究了时域、频域、功率域多种抗干扰技术的抗干扰机理和定量描述抗干扰能力的方法,其中扩展频谱技术是主流的抗干扰技术,包括直接序列扩频和跳频技术以及它们的改进方案。
It has many benefits due to its ultra - wideband nature which including the following : not sensitive to channel fading , low transmit power , extremely difficult to intercept , low complexity of transceiver structure , fine range resolution ( centimeter scale ) for location and so on this paper combines uwb technology and mobile ad hoc network technology , concerting the lasn project of national key laboratory of communication , researchs the baseband process cell of uwb communication transceivers on the base of arithmetic research and spot test 本文结合uwb技术和移动自组织网( manet ,即mobileadhocnetwork )技术,配合通信抗干扰技术国防重点实验室uwb技术研究项目“ lasnproject ”的工作进展,在算法研究和现场测试的基础上,对uwb通信节点样机的基带处理单元进行设计研究。样机结构包含三大模块:天线、用分立器件形成的射频电路、由fpga构建的基带处理单元。
This system ' s hardware is composed with portable computer , data acquisition and sensors , it adopted the modularization method in the design of hardware which makes the test instrument very small and light , high antivibration capability , easily installed and taken down , so the test instrument can do experiment in the running vehicle 软件设计中利用了dll技术，采用bc和vb进行模块化开发，使得系统软件具有很好的通用性、灵活性和可扩充性。系统采用硬件抗干扰技术和软件数字处理技术是本文论述的两个关键，是从测试系统的微观的角度来解决实际问题。
The paper gives a detailed study to the general system structure , working principles and the actual soft and hardware designing methods . it sets forth a set of methods suitable for the data collection , analyses , treatments and test - process control . the anti - interference technology and the distance diagnosis and maintenance basing on internet technology is also discussed here 本文对系统的总体结构、工作原理以及具体的软硬件设计方法进行了详细论述，提出了一套适合于汽车综合性能检测的数据采集、分析、处理与检测过程控制的方法，并对系统的抗干扰技术和基于internet技术的系统远程诊断与维护方法进行了探讨。
