数字信号

The validation of the design relies on the language environment of MATLAB,the behaviour level simulation of the digital filter is achieved by programming,that is totally different from other digital filter designs which depend on special tools for filter design and analysis in MATLAB signal processing tools box.

依靠Matlab软件的语言环境验证设计方法，编程实现数字滤波器的行为级仿真，这与其它数字滤波器的设计中利用Matlab信号处理工具箱中专门用于滤波器设计与分析的工具完全不同。

Aiming at the constraint of analog input signal in digital receivers,a kind of well adaptive signal conditioning circuit is designed in this paper.

针对中频数字接收机中对输入模拟信号的要求，设计一种适应性良好的信号调理电路。

Digital spherometer is a revolution to traditional spherometer. This paper mainly introduces a kind of means about subdivision of grating moire fringe and its device used on digital spherometer system.

数字球径仪是对传统球径仪的革命，本文主要介绍了一种莫尔条纹信号软硬件相结合的细分方法及其装置在数字球径仪的应用。

This number is a little deceptive because only 480 to 486 of these lines contain video information; the remaining 39to 45 lines are reserved for sync pulses to keep the television's circuits synchronized with the video signal.

因为在这些线中的只有80到486条包含了电视信号的数据；剩余39到45条行被同步脉冲保留用以维持电视能与信号一起同时被使用，所以这一个数字稍微具有一定的迷惑性。

This system includes three units of signals' sample,processing, and display.

本文设计了以DSP作为中央处理器的数字电路系统，包括信号的采集、处理、显示三个单元，实现了对整个系统的控制与信号处理。

An RF signal is sent to the nearest base station, which sends the signal to a digital telephone exchange and on to the main telephone network.

一个RF信号发送到一个最近的基站，它把信号发送到数字电话交换，到主要电话网络。

By generating all essential clock signals for MPEG playback, and converting digital video inputs to either NTSC or PAL video signals, the SP232EEN-L is an essential component of any low-cost solution for video-CD playback machines.

通过产生所有必要的MPEG播放时钟信号，并转换为数字视频输入或NTSC或PAL视频信号，SP232EEN - L是一个任何视频光盘播放机的低成本解决方案的重要组成部分。

The well-grown hMSCs of the first to second generation were chosen to perform the record and analysis with whole cell patch clamp technology, Type PC-IIB patch clamp amplifier （developed by Huazhong University of Technology was adopted in this experiment）.

实验采用PC-IIB型膜片钳放大器，由计算机发出指令经数字量数据／模拟量数据转换经放大器输出到细胞，细胞信号由放大器放大再经模／数转换后记录到计算机，保存在数字硬盘上供分析调读，记录与分析软件为IBBClamp，采样间隔100μs。

The PXI modules include:PXI-1044 AC power supplies,14 slots and 3U box,PXI-5152 digital module,PXI-4072 digital multimeter module,PXI-5422 function signal generator module,PXI-5660 RF signal analyser modult,PXI-8351 zero slot controller module , PXI-6115 multi-function DAQ module , PXI-4461 dual-channel DAQ module,PXI-2593 matrix module and so on.

根据测试的要求所选用的PXI模块包括PXI-1044交流电源14插槽3U机箱、PXI-5152数字化仪模块、PXI-4072数字多用表模块、PXI-5422函数信号发生器模块、PXI-5660 RF信号分析仪模块、PXI-8351零槽控制器、PXI-6115多功能DAQ模块、PXI-4461双路数据采集模块、PXI-2593多路复用器/矩阵模块等。

The modulation mode of baseband signal and working parameters of radar can be changed agilely.

本文设计了基于DSP的AD9857实现数字上变频方案，该方案由DSP产生不同编码的数字基带信号，并实现对AD9857的控制。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。