数字信号

As the ligament between analog signal and digital processing, the high performance A/D converter is more and more important for the whole design system.

作为模拟信号和数字处理之间的纽带，高性能的A/D转换器对设计系统的实现至关重要。

An automatic seismic signal detector based on a fast algorithm of energy spectrum has been developed for digital accelerograph.

我们在能量谱快速计算的基础上，研制成功了用于数字化加速度仪的自动地震信号检波器。对一个连续系统进行了不变数字模拟，该系统被认为是作为单自由度系统加速度计的转换函数。

A video card , also called a graphics card or video adapter , converts digital output into an analog video signal that is sent through a cable to the monitor .

视频卡也称图形卡，显示卡或显示视频适配器，它将数字输出转换成通过电缆发送到显示器的模拟视频信号。

An adaptive filter based on Data-Reusing Least-Mean-Square algorithm has been proposed and applied in magnetocardiography to suppress ambient noise.

提出了一种基於数据重置最小均方算法的自适应数字滤波器，并将其应用於抑制心磁信号的背景噪声。

In this paper,a kind of digital lockin amplifier used in FOG signal detection is designed.

提出了一种用于光纤陀螺信号检测的数字锁相放大器的设计方法。

In practical applications of the data collection system designed to quantify the number of external analog signals into a computer for processing.

在实际的应用中数据采集系统的目的是把外部模拟信号进行数字量化后送入计算机进行处理。

So, it is becoming more and more common to deal with analog signal with digital circuit.

因此，越来越多的信号处理工作趋向于在数字领域来完成。

These methods will be applied to the design of oscilloscopes, digital oscilloscope measurements can be realized weak signal functions.

将上述方法运用到数字示波器设计中，可增加数字示波器测量微弱AM 信号的功能。

An image display apparatus includes a display having data holding function, a vertical drive circuit sequentially and selectively scanning matrix form display elements, and a horizontal drive circuit writing a voltage among binary voltage preliminarily assigned depending upon the digital data of the image signal. The horizontal drive circuit and the vertical drive circuit are operated for performing selective scan of respective display element for at least m times in one frame period. The vertical drive circuit is constituted of n number of sequence circuits and logic operation circuits for outputs of the sequence circuits, where n is smaller than m, a period from inputting to the sequence circuit to outputting from the final stage being less than or equal to half of one frame period, and at least one of the sequence circuits being used with selectively inputting a plurality of inputs.

提供了一种图象显示器，其具有显示部，在矩阵上排列的象素内保有数据保持的功能，根据保持的数据进行显示；垂直驱动电路，对构成显示部的矩阵状显示器以每行按顺序作选择性扫描；以及水平驱动电路，对于由垂直驱动电路选择的行显示器件，根据应显示的图象信号数字数据，从预先分配的二进制电压中写入电压，并利用水平、垂直驱动电路，与应显示的图象信号同步，在1帧期间至少m次对各显示象素进行选择性操作，以此进行多色调显示，垂直驱动电路由满足n＜m的n个顺序电路和其输出的逻辑运算电路组成，顺序电路的输入从最后级输出为止的期间为1帧期间的1/2以下，并且，n个顺序电路的至少一个的输入是切换多个输入系统而使用。

This provides the theoretical basis for that using the lower frequency update data-rate device synthesises wideband LFM signal with bandwidth near to the phase update data-rate of the devices.

数字方式形成的LFM信号具有线性度高、相干性好、控制灵活等优点，这是模拟方式无法比拟的。但是，由模拟方式合成的LFM信号的相位是连

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。