抗干扰

This thesis introduce the properties of sea clutters, sea clutters elimination, development direction and anti-interference.

简要介绍了海杂波特性，海杂波的抑制技术和发展方向，以及脉冲多普勒雷达抗干扰技术。

The paper gives a systematic introduction to RS 232C technology and analyzes in details the designed circuits of MCMCS 51 AVR and RS 232C and anti interfering methods of the comports .

系统介绍RS-232C串口技术，详细分析MCS-51单片机与RS-232C串行接口的设计电路和该接口的抗干扰技术的方法。

Further more, this design concretizes the chip's redundancy, Finites State Machine, signal's correction and the Genetic Algorithms, the design capability and the ability of anti-jamming are improved, thereby, we manufacture the claw's controller, which has high dependability and can be used in outer space.

此外，还将器件冗余、有限状态机、信号纠错、遗传算法等多种技术融合到具体的研制过程中，进一步提高了整个系统的设计性能与抗干扰能力，从而研制出了具有高可靠性，能够满足舱外工作需求的手爪控制器。

The paper is an important part of tenth-five national defense scientific research. Using correct coding technology we research anti-jamming technology of millimeter communication system. The method of code is serial coherent convolved code.

本论文是&十五&国防科研项目的重要组成部分，主要采用信道中纠错编码的手段研究了毫米波通信系统的抗干扰问题，编码的方法选用串行级联卷积编码。

Secondly, the thesis analyzes the design principle of hardware system, and descries the architecture of the solution. It analyzes how to implement AD converter, IDT72V3690 circuit, FPGA chip EP1C2214 design, including RAIDO disk control and application of embedded microprocessor LPC2214.Thirdly, the thesis descripts the design and realization of embedded software of LPC2214. First of all, it brings out the thinking of software layer, and designs the software architecture.

其次，叙述了基于USB总线硬件系统的体系结构及设计原理；详细介绍了如何实现AD转换电路抗干扰以及如何采用嵌入式处理器LPC2214、高速缓存IDT72V3690电路、FPGA芯片EP1C2214等电路设计实现简易RAID0存储阵列；重点叙述了FPGA设计ATA控制器和RAIDO逻辑的过程，介绍了FPGA内部逻辑是如何工作，将数据有序高效地并行存储到磁盘中去的。

On the surface of grating to be tested, quantity and density of diffracted light interferometric fringes are difference of interferometric fringes of incident light and grating...

采用共光路的方案，使光路具有很强的抗干扰能力。

The communication technology used in GPS is a direct sequence spread spectrum structure. Using C/A Gold codes, it can cope with wideband noise (such as thermal noise and channel noise) or low power narrowband interference by its processing gain. But DS-SS can not reject high power narrowband interference completely. So we need an anti-jamming filter to reject the narrowband interference by using adaptive filters prior to dispreading.

它是利用直接展频的一种架构，因此，此系统能藉由C/A码的展频处理增益，来对付ㄧ些宽频的干扰或是低能量的窄频干扰，但是它无法应付高能量的窄频干扰，因此我们需要一个抗干扰滤波器在解展频之前来先将干扰去除。

In order to enhance the anti-interference ability of the system, the system power supply divides into 3 parts.

为了提高系统的抗干扰能力，此系统电源分为3部分。

Uses the automated control not only on the galvanization production line to be possible to raise the product manufacturing efficiency and to reduce worker's labor intensity, and has the very good economic efficiency and the social efficiency, galvanizes on the production line to be possible to realize the automated control using PLC, PLC has the reliability to be high, the compatibility is broad, has the correspondence function, the structure modulation characteristic, therefore how to use good PLC to become the galvanization production line automation control key, auxiliary to galvanized the automatic production line driving with PLC by the frequency changer to carry on the automatic control, had the structure to be simple, the programming was convenient, the operation was flexible, the use safe, worked stable, the perform reliably and the antijamming ability strong characteristic, was one kind of very effective automatic controlThe way, is galvanizes the production to realize, the low cost, the high grade automated production development direction highly effective.

在电镀生产线上采用自动化控制不但可以提高产品生产效率和减轻工人的劳动强度，而且有着非常好的经济效益和社会效益，电镀生产线上运用PLC则可以实现自动化控制，PLC具有可靠性高，适应性广，具有通信功能，结构模块化的特点，因此如何使用好PLC成了电镀生产线自动化控制的关键，用PLC辅以变频器对电镀自动生产线行车进行自动控制，具有结构简单、编程方便、操作灵活、使用安全、工作稳定、性能可靠和抗干扰能力强的特点，是一种很有效的自动控制方式，是电镀生产实现高效、低成本、高质量自动化生产的发展方向。

We have developed many kinds of optical methods to measure the insect flight. For example, a beating force measurement method reduces the uncertainty caused by air turbulence; a flow measurement using a frame straddling technique decreases the interval between exposures of the flow;extracting the weak distorted fringes on the dragonfly wing by a correlation algorithm; measuring the camber deformation of a dragonfly wing using projected comb fringe without hypothesizing that the wing is a rigid plate. By measuring the beating force, wing kinematics and flow, simutantously, we can analyze the relationship among many flight parameters.

本研究针对昆虫运动的特点，研究开发了测量昆虫运动，特别是自由飞行昆虫运动的光学方法，包括：风洞中扇翅力的测量，解决高灵敏度光学测量的抗干扰问题；帧头帧尾流场测量方法，解决由CCD拍摄帧频导致的测量速度低的问题；调制相关算法，解决透明翅膀上散射光较弱问题；梳状条纹投影法，解决翅膀弓形变形测量问题，不需要以往的翅膀刚性平板或刚性条杆假设；多参数的综合测量，解决各参数间的相位匹配问题。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。