查询词典 waveform digitization

The commonly used Gaussian pulse and Gaussian Monocycle cannot satisfy the FCC's frequency mask constraint well, in order to satisfy the request of coexistence and interference mitigation for the optimized waveform design, SSA (Soft-Spectrum Adaptation)-UWB scheme was proposed.

摘要常用的高斯脉冲及高斯单周不能很好地满足FCC的频率掩模约束条件，为了满足频谱共存、干扰避免的要求进行波形优化设计，我们提出了软频谱适配SSA（Soft-Spectrum Adaptation）-UWB方案。

When the nonlinear layer which has weak nonlinearity is thin and far away from the seismic source which be low energy, compared with the corresponding results in linear antis, the medium nonlinearity produces abort 1/10~1/4 and 1/10~1/3 differences of instantaneous dominant frequency aid bandwidth. These instantaneous feature differences of seismic waves induced by the nonlinearity of media become weaker and weaker with the decrease of source energy. However, with the increase of the wave travel path within the mummer layer, the nonlinear accumulation effect could still keep such phenomena as the waveform distortion and instantaneous dominant frequency and bandwidth variations in records.

在本文给定的弱非线性介质中（非线性炽较薄且远离震源），在震源能量较低的情况下，介质的非线性效应会造成地震波瞬时主频和频宽相对于线性介质情况分别为1/10~1/14和1/10~1/3左右的变化量此外，随着入射波能量的下降，介质非线性所造成的地震波瞬时特征的变化量减小，但随着地震波在穿越非线性介质时路径的加长，非线性作用的累积效应使得波形畸变和频率分布特征的变化等现象得以维持。

SP. transient electromagnetic method: An electromagnetic method in which the waveform of the transmitted signal is a pulse, step function, ramp, or other form which can be considered to be nonperiodic and in which measurements are made after the primary field has stopped changing.

瞬变电磁法：一种电磁勘探方法，其中发射信号的波形是一个脉冲，阶跃函数，斜升函数或其它可认为是非周期的信号形式，且测量是在一次场停止变化后进行的。

The number of repetitions per unit time of a complete waveform, as of an electric current.

频率：单位时间内某种完整波动的重复次数，例如电流

Single open-circuit faults are characterized by distinctive patterns of the output voltage waveform, which is divided into four sections in a period.

把逆变器输出电压波形在一个周期内分为4个区，则可以发现单个元件开路的相应故障特征。

Analyzed the characteristics of these methods,the paper proposed the optimum solution which is according to the object of actually request of waveform control.

在对这些控制方法的特点作了相应的分析后，从波形控制的实际要求出发，提出了最有前途的方案。

As to the waveform management of phased array radar, two strategies based on IMM algorithm is studied, which are covariance matrix orthogonal and mutual information methods.

对于相控阵雷达波形管理，研究了两种基于IMM的自适应波形策略：协方差矩阵"正交"法和互信息量法。

In chapter five, the base band signal process of CDMA base station simulator system is introduced, including channel coding and decoding, interleave and disinterleave, PN sequence generator, orthogonal spread spectrum and quadrature Spreading, scrambling code, power control, digital forming filter, the capture and track of PN code, dispreading and demodulation, etc. Some FPGA design graphic and waveform simulation of base band transmitter module is given and realization algorithm of base band receiver is discussed in detail.

第五章介绍了CDMA基站仿真系统的基带信号处理过程，包括信道编译码、交织与去交织、PN码发生器、正交扩频与四相扩频、扰码、功率控制、数字成形滤波器、PN码的捕获与跟踪、解扩与解调等，并给出了基带发射机模块的部分FPGA设计原理图和波形仿真，详细论述了基带接收机模块的实现算法。

It can realize the function of the traditional oscillograph but also can store, reproduce, analyse and deal with the waveform.

它不仅可以实现传统示波器的功能，而且能够存储、再现、分析和处理波形。

Make optical power as high as possible and waveform displayed by oscillograph big enough.

使光功率尽量高，示波器显示的波形足够大。

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。