查询词典 digital signal

In Chapter 2, a detailed survey on digital image watermarking is presented. InChapter 3, an optimal scheme is proposed to use Human Visual System model tocompute masking function. It will be used to control the strength of watermark signalfor optimal embedding. In Chapter 4, we propose a novel watermarking scheme based on lattice vectorquantization. Some important transform coefficients of the original image are firstlymapped into the nearest neighboring lattice points by using lattice vector quantizer,then watermark signal is added to the lattice points.

本文讨论了数字图像水印及其在多媒体安全中的应用，主要围绕下列问题进行研究和创新：1、优化的水印嵌入模型：本文对基于直接序列扩频技术的水印算法进行了改进，根据人类视觉系统感知模型，提出了优化的水印嵌入模型，在不可感知性条件的限制下，使水印的鲁棒性达到最高。2、基于格矢量量化的图像水印：本文提出了基于格矢量量化的多比特盲水印算法，不需要原始图象就可以实现水印信号的检测和译码。

Currently, digital TV mainly has about seven chips, like Signal demodulator chip, video-control chip, MPEG-2 decode chip, video processing chip, HDMI interface chip, audio frequency treatment chip and audio frequency amplification chip.

目前数字电视里主要芯片有信号解调芯片、视频控制芯片、MPEG-2解码芯片、视频处理芯片、HDMI接口芯片、音频处理与音频放大芯片，也就是大约7片IC。

The method can be applied to new digital video signal designing, encoding and image quality assessment.

此问题的解决，有利于进一步研究新的数字视频信号设计、编码和图像质量评价。

In the digital video signal processing the technology of video moving object detection is very important.

视频运动目标检测是数字视频处理、分析应用的一个重要领域，在民用和军事上有着广泛的应用。

Testing system's stability by transmitting digital video signal .

对系统的稳定性作了传输数字视频信号的测试实验。

The history of video monitor technique has experienced three generations:first generation,traditional simulation video monitor system;second generation,hard disk - video tape recorder based video monitor system and the third generation,digital video monitor system based on compressing the video image at the place of signal resource.

纵观视频监控技术的发展历史，它主要经历了三代：第一代，传统模拟视频监控系统；第二代，基于硬盘录像机的视频监视系统；第三代，基于信源压缩的数字视频监控系统。

Data acquisition is widely used in the field of radar signal processing, digital image processing and virtual instrument.

在雷达信号处理、数字图像处理和虚拟仪器等领域中，数据采集都得到了广泛的应用。

By starting from the engineering projects of IP and SoC for deep sub-micron and nanometer IC, Vivace has built up a scalable team model and made joint efforts with the first-class international design team in developing the key circuit technology for integrated digital video and mobile TV signal processing.

以深亚微米和纳米集成电路 IP 和 SoC 的工程项目为起点，芯慧同用建立了可倍增的团队模型；并与国际顶级设计团队联合，开发集成化数字视频和移动电视信号处理的关键电路技术。

NBy starting from the engineering projects of IP and SoC for deep sub-micron and nanometer IC, Vivace has built up a scalable team model and made joint efforts with the first-class international design team in developing the key circuit technology for integrated digital video and mobile TV signal processing.

合并，取得了美、新和国内带头风险投资公司的充足基金，增强了以美国技术和市场为背景的EDA、设计服务、尤其是DSP技术的精、深、创新的领军团队（CEO Cary Ussery and CTO Mark Indovina，吸引了以成功无加工线IC设计公司带头人和美国东部投资公司为首的资本运作团队的直接介入，建立了Integrated国际化团队支持注册在中关村北京集成电路设计园。

This paper introduces the research and implementation of all-purpose high-speed test adapter for ADC. The main contents includes two methods about how to testing the static parameters and dynamic parameters for ADC. The servo loop method is proposed to static parameters, by using the test principle of high-precision voltage source, high-precision voltage meter and digital comparator. To dynamic parameters, the DDS chip of AD9851 is used to generate sine waves with high signal to noise ratio, then the high-s...

servo loop ； FFT ；本文介绍了关于ADC高速通用测试适配器的研究和实现，主要介绍了测试ADC芯片静态参数和动态参数两种方法，针对静态参数，提出了用伺服环的方法，采用高精度电压源，高精度电压表和数字比较器的测试原理；针对动态参数，提出了用DDS芯片AD9851产生高信噪比的正弦波，采用高速采样模块采集数据，最后用FFT算法对采集的数据进行处理。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。