查询词典 digital signal

Besides, when digital system is employed, the huge relative bandwidth signal can be generated on intermediate frequency.

此外，数字方法还可以在中频上产生出相对带宽很大的信号。

VPDN of CDMA 1X is utilized here, combined with traditional dispatching and automation technology, a digital multifunctional information platform is built in the scheduling center The dispatching and mornitoring management of the transfonnations at interzone signal point are realized here.

该系统利用CDMA1X分组域的VPDN专线网，结合传统的调度自动化技术，在调度中心构建数字化多功能信息平台，实现了对区间信号点处变压器运行状态的实时监测与控制，同时也为铁路10kV自闭／贯通线上故障测距和故障诊断提供了相关的有效依据。

To overcome the bulky , inflexibility of traditional analog d ither system,a new solution for ring laser gyroˉ scope was designed with field programmable gate array.T he digital dither control method was given and dither characteristics were analyzed by square wave driving signal s.

针对传统机抖激光陀螺模拟偏频系统体积大、难于控制的缺点，设计了一种基于 FPGA的全数字抖动控制方案，提出了数字抖动控制原理，分析了数字方波驱动信号的性能，实现了伪随机噪声的生成和注入。

In this paper, the jitter performance of high-speed digital serial communication based on electronic signal is investigated.

本论文主要研究的是基于电信号的高速数字串行通信系统中的时间抖动性能。

At the same time, considering the jumpiness or incline caused inaccuracy and pretermission when the capsule moving ahead, two couples of infrared ray and electron transducer were designed to detect the light signal of the corresponding parts of the capsule. After the addition operation compensation and differential coefficient, turning the little different simulation signals of the body and cap of the capsule into digital signals for detection. It is more accurate for detection and stable to the disturbance. Step electromotor was used for the capsules direction turning which solved this problem efficiently. The capsules were ranged in order according to their colors with the cap at the same direction.

同时考虑到胶囊行进过程中跳动、倾斜及随机干扰造成的误判、漏判，设计了两对红外光电传感器用以同时检测胶囊上下两个边缘部位的光信号，两个检测信号经加法运算补偿、微分运算处理，将体现胶囊的帽、体微小几何尺寸差别特征的弱模拟信号直接转变成数字量检测，提高了检测的准确率及抗干扰能力，并由步进电机控制胶囊掉头，有效地解决了胶囊体、帽的位置调整，分色调头排列，达到帽、体一致。

In the AC servo control system, using digital low-pass filter can restrain current feedback noise and improve the resolving power of speed feedback, but it may lead to phase lag of feedback signal and directly influence the response speed.

交流伺服控制中采用数字低通滤波可以抑制电流反馈噪声，提高速度反馈分辨率，但同时会带来反馈信号的相位滞后，将直接影响响应速度。

Lecturing the technical requirements and constitution of light transmitter and receiver; the theory of noise of light receiver; analytic theories of signal/noise ratio and bit error rate for digital light receiver; technique of coding and decoding of line.

讲授光发送机和光接收机的组成及其技术要求；光接收机的噪声理论；数字光接收机的信噪比和误码率分析理论；线路编解码技术。

An apparatus for recording a digital information signal in slant tracks on a longitudinal magnetic record carrier (10) is described.

描述了把数字信息信号记录在纵向磁记录载体（10）的倾斜磁道中的设备。

Source Module to provide digital modulation module base-band and bit synchronization signal BS (in experimental circuit board connected Link without manual wiring).

信源模块向调制模块提供数字基带信号和位同步信号BS（已在实验电路板上连通，不必手工接线）。

3A hardware platform design scheme of digital random noise signal generator is proposed, and it is successfully implemented by using the devices of FPGA and mass capacity memory and so on.

4首次论证并仿真实现了随机噪声环形SAR。环形SAR可以提供被照射区域的全视角(360度)图像，可以获得更多更精确的信息。

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。