查询词典 digital coding

The relationships of signal-to-noise ratio of sampled signal, analog filter before analog-to-digital converter and sampling rate have been discussed, the results of the discussion have instructiveness for the design of digital receivers.

该文讨论采样后信噪比与模数转换器前的模拟滤波器以及采样率之间的关系，所得结论对数字接收系统设计有指导意义。

The digital algorithms of integral and discrete wavelet transform are presented for purpose of electric power system protection, based on the analysis of wavelet transform for sampled digital signals under the Shannon sampling theorem.

从电力系统继电保护应用的角度，结合香农采样定理，深入探讨了连续信号和离散信号的小波变换的关系，给出了离散信号的积分小波变换和离散小波变换的数字计算方法。从理论上研究了信号小波变换的误差与尺度函数和小波函数的关系。

Moreover, other peripheral in communication with the ICH 38 may include, in various embodiments of the invention, integrated drive electronics or small computer system interfaces hard drive, USB ports, a keyboard, a mouse, parallel port, serial port, poppy disk drive, digital output support e.g., digital video interface (DVI, or the like.

此外，与ICH38通信的其他外围在本发明的各实施例中可以包括集成驱动器电子电路或小型计算机系统接口硬盘、USB端口、键盘、鼠标、并行端口、串行端口、软盘驱动器、数字输出支持例如，数字视频接口

With the popularity of interactive digital TV, the concept of digital home has penetrated into people's life.

随着计算机网络的发展和交互数字电视的普及，数字家庭的概念不断深入民心。

Meanwhile, the application of interactive digital TV middlewares provides digital families an open, flexible, extensible and portable value added service platform.

同时，交互数字电视中间件技术的应用，给数字家庭提供了一个开放、灵活、易扩展、可移植的增值服务平台。

While library resource sharing is shifting to the new networking environment era, it is also in face of a lot of new challenges and"Access versus Assets"is becoming the new theme of the resource sharing in this new networking era, based on this point this thesis studies the development and the transformation of the resource sharing both in practice and in theory in the networking environment, particularly focus on a serial of issues, including the construction of resource sharing system, digital information resource, digital library, interlibrary loan, document delivery service and collection development etc. The writer also analyzes the coexsitence of the traditional resource sharing and modernizational resource sharing and the relationship between them in 21st, explores the revolutionary changes of resource sharing as the"Assets"model is driving to the"Access"model, discusses the development of specific collection for a single library and how to construct a seamless integrated information resource system in the networking environment, systematically studies and introduces the new organization model of resource sharing, especially emphases that document delivery is the key of the success in resource sharing, and finally tries to outline the main trends which will influence resource sharing.

本文立足于网络环境下资源共享的新主题：存取与拥有，研究和分析了网络环境下资源共享及其体系建设，包括电子信息资源、数字图书馆建设、馆际互借、文献传递服务、文献资源建设等几方面在理论和实践中的发展和变革；论述了21世纪初网络环境下传统型和现代型两种层次并存的资源共享；探讨了文献资源建设从"拥有"模式到"存取"模式的重大转变、特色馆藏建设和无缝一体的网络信息资源体系的建设途径；较为全面、系统地研究和介绍了网络环境下资源共享的新型组织模式的形成及其特点；强调了文献传递是实现资源共享的关键；并试图准确把握网络环境下资源共享研究和实践的发展趋势。

The interoperability of digital libraries is becoming more and more important with the development of digital resources.

随着数字图书馆的发展，各种资源间的互操作性也变得越来越重要，人们也一直致力于对分布式资源进行统一检索的开发。

In the development of the home's inside receive/send controller , the two level interrupt receive device , which was compose of interrupt controller , was adopted to realize the home's digital signals' collection , the A/D converter was adopted to realize the home's digital signals' collection . The A/D converter was adopted to realize the home's analog signals' collection .

在家庭智能化内部收发控制器的设计中，采用中断控制器组成二级中断接收装置实现对家庭数字信号的采集，采用A/D转换器实现对家庭模拟信号的采集，采用译码器实现对数字信号的传出。

The inventer controller composed by separated analog devices before has developed into analog-digital or full digital controller based on microprocessor.

逆变控制器的发展经历从分立元件的模拟电路到以专用微处理芯片为核心的电路系统，并从数模混合电路过渡到纯数字控制的历程。

The invention refers to a method to correct universal frequency of electric communication technique, its character: make signal index quantization on the complex number of cross product, to directly reflect the quantized numerical value of tangent value and the located quadrant of imaginary and real parts, use inverse tangent ROM table to discriminate the processed result, then make loop filter and phase accumulation on the discriminated result to obtain error-correcting angle, and use digital controlled oscillator to make table look-up and quadrant adjustment to obtain correcting factor; use the relationship of trigonometric function in each quadrant to compress inverse tangent look-up table ROM and digital controlled oscillator look-up table ROM.

一种涉及电通信技术的通用频率纠正的方法，其特征在于：它采用如下步骤：经过叉积的复数进行信号指数量化处理，通过该复数虚、实部信号的指数量化结果的差值及其极性直接反映虚、实部的正切值的量化数值以及所处象限，将处理后的结果通过反正切ROM表进行鉴频，鉴频后的结果经环路滤波和相位累加，得纠偏角度，通过数控振荡器针对纠偏角度进行查表和象限调整，得到纠正因子；通过个象限之间的三角函数关系来压缩反正切查表ROM和数控振荡器查表ROM的大小，本发明资源耗费小，效率高，可极大地节省内存资源。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。