系统的

And this causes a frequency change Δf. The resonant point tracing algorithm describes how to detect Δf. So it can introduce a feedback frequencydifference -Δf through a closed loop to realize the resonant state o In the digitaldetection scenario, using staircase wave to replace saw tooth wave, it can overcome a lot of shortcomings in the analog system. The character of the staircase wave affects the detection precision directly. This thesis analyzes a high precision scenario producing a staircase waveform in detail. It can reduce the number of the bits in D/A converter greatly. This thesis proposes another method to improve the detection precision in case that the A/D converter has comparatively little number of bits, while this method will not increase the cost of the system greatly.

在谐振式光纤陀螺中，环形谐振腔的旋转使得谐振腔的谐振频率发生了变化，从而产生了一个与旋转速度成正比的频率变化值△f，谐振点跟踪算法描述了如何检测出△f，从而可以通过闭环在系统中引入反馈频差-△f，实现光路的谐振状态；在数字闭环检测方案中，用阶梯波作为反馈信号来代替锯齿波，可以克服原来模拟系统中锯齿波的很多缺点，阶梯波的性能直接影响着系统的测量精度，本论文详细分析了一种高精度阶梯波生成方案，使得所需D／A的位数大大降低；本文还分析了A／D转换器对系统测量精度的影响，提出了一种A／D转换器位数较少的情况下提高系统测量精度的措施，同时又不会增加太多的系统成本。

The paper discusses the develop model, the function modules, the database design principle and the system's safety and trustiness, and designs the network projects.

论文对系统的开发模式、系统功能模块、数据库设计原则、系统的安全可靠性、系统的网络方案等进行了探讨。

The function of synthesis experimental system for automatic detecting the tubular motors was introduced in this article.

本文介绍了管状电机自动测试综合试验系统的功能，并对实现这些功能的硬件系统和软件系统进行了较为系统的阐明。

Twin-screw extruder design should include twin-screw extruder, overall scheme of the types of extrusion system design, the design, the transmission system, the design of the system, heating and cooling system design, the design of control system, etc.

双螺杆挤出机设计应包括双螺杆挤出机类型的确定，整体方案的确定，挤压系统的设计，传动系统的设计，加料系统的设计，加热冷却系统的设计，控制系统的设计等。

The mathematical model for undercarriage load simulation system of a certain airplane is established in this paper.

建立了某型飞机起落架负载模拟系统的数学模型，将起落架位置干扰量作为系统的不确定参数，设计了系统输出力矩跟踪空气动力载荷谱的非线性控制规律并进行了系统仿真。

Confronted with the development of economic and our entrance of WTO though analysis the environment of living and the condition of themselves, banking industry have cognizance of that customer is the basis of living, in order to upraise the standard of service, meet the changing and increased needs of customers, bank must correct range the product factor, made them work efficiently.

面临入世及国内经济的发展，银行业通过认真分析自身条件与生存环境后认识到，客户是生存发展的基础，要提高服务水平，满足客户不断变化增长的需求，就必须对生产要素进行合理配置，使其协调运作，才能发挥最大效益。2001年9月，西安市工行综合业务系统投入运营，综合业务系统以全方位、综合性为设计目标，将原来分散于各独立系统的业务、数据汇集成为由多个子系统构成的大型业务处理系统，基本覆盖工行目前承办的各项柜面业务，满足金融业务品种不断创新的集成环境需求。

The phylogeny and applied prospect of MES are summarized in the paper. The principle of this system is analyzed from the point of view of acoustics. The surveying and filtering technology of auxiliary parameters, sounding data and the theory of image form, backscatter strength data processing, are researched deeply in the paper. The optimal model of velocity of sound is given. For sound ray tracing, some methods of correction of sound ray curve are developed. At the same time, an ideal model of sound ray tracing is proved and given. The GPS technology is applied for the determination of tide, attitude of vessel. Moreover, some methods are given. As an important topic, the systematic error is discussed in the paper. Some filtering methods are researched in this paper. Based on the current methods of image processing, the procedure and methods are tested and given that adapt to sonar image processing.

本文研究的工作是在总结多波束声纳测深系统的发展历史、应用前景的基础上，从声学角度分析了多波束系统的工作原理；对多波束辅助参数的测定和滤波方法、测深数据的滤波方法、多波束声纳图像的形成机理、图像处理以及最终应用等作了比较深入的研究；得出了适合于多波束精密深度计算的最优声速模型和声线改正模型；提出了 GPS 载波相位定位技术用于多波束辅助参数测量的思想、算法，改善了多波束系统的作业模式；系统地分析了深度数据的误差来源和类型，首次将系统误差作为影响测深精度的主要因素给以研究，并给出了削弱系统误差的方法，提高了深度数据的质量；对多波束声纳图像的形成、处理方法进行了细致的研究，给出了适合多波束图像处理的算法和流程，并从理论和实践上对声纳图像的应用进行了比较全面的研究。

This thesis includes eight chapters: chapter 1 introduces the development background and target; chapter 2 expatiates the primary algorithms of cryptography; chapter 3 explains feasibility research report; chapter 4 shows the requirement analysis report; chapter 5 summarizes the preliminary design report; chapter 6 includes detailed design report and partial source codes; chapter 7 discusses the software testing report; chapter 8 acquires a whole-length summarization.

本文共分为8章：第1章介绍密码学综合实验系统的开发背景与目标；第2章阐述了密码学的主要加解密算法及原理；第3章为该系统的可行性研究报告；第4章是需求分析报告；第5章叙述了系统的概要设计；第6章介绍了系统的详细设计及部分编码；第7章为该系统的软件测试报告；第8章是对全文的总结。

By making a numerical analysis of the bistable stochastic dynamical systems, we find that the effect of an input sinusoidal signal is also a sinusoidal signal in the output, and the effect of the white noise is a Wiener process. When the system parameters are small enough, the coupling effect between the sinusoidal signal and the white noise can be largely weakened.

随机共振是双稳系统在周期信号和噪声的作用下表现出来的非线性现象，当系统的非线性与信号和噪声之间存在某种匹配时，通过对系统施加适当强度的噪声，可以提高系统对信号的响应，系统输出的信噪比对噪声强度表现出一峰状曲线[11] 。

I calculate model of the underfloor air conditioning system with radiation of the floor, find that among the underfloor air conditioning system with radiation and underfloor air conditioning system without radiation and a ordinary one blow air conditioning system, the system has the characteristics that underfloor air conditioning system with radiation is smaller, more economic, more energy-conserving.

笔者通过对一个带有地板辐射的地板送风空调系统的模型进行计算，发现带有地板辐射的地板送风空调系统与无地板辐射的地板送风空调系统以及普通的上送风空调系统相比较，系统具有送风量更小，更经济、节能的特点。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。