用信号叠加技术减少电图的噪声干扰。
Noise of electro-grams was reduced using signal averaging technique.
视频字符的显示原理是将字符点阵信号与原始视频信号叠加。
The principle of displaying a video character is that a character dot matrix signal is superimposed upon an original video signal.
目的：探讨无创性经食管信号叠加直接记录窦房结电位（SNP）的技术。
Objective To explore a noninvasive transesophageal signal averaging technique for direct recording of sinus node potential (SNP).
解调器解调接收的反射信号，该信号叠加在微波发生器产生的微波信号上。
A demodulator demodulates the received reflected signal, which has superimposed on it the microwave signal which originates from the microwave generator.
提出一种基于FPGA的实现卫星定位信号与视频图像信号叠加的设计方案。
A design scheme to realize the superposition of satellite positioning signal and video signal image based on FPGA (field programmbale gate array) was proposed.
研究方法：建立了水树精确数字仿真模型，提出一种新的在线绝缘诊断方法：高频信号叠加法。
Research methods: in this paper, an accurate water tree model has been created. We have successfully developed a new hot-line diagnostic method called "high frequency superposition method".
该技术主要采用低通滤波和电容耦合，将数据信号叠加到电源信号上，通过同轴电缆，实现长距离功率能源与数据混合传输。
It adopts coaxial cable as the media for the data signal and power signal mixture transmission. Thus the goal of high-speed and long-distance transmission can be achieved.
使用线形馈源时，操作者产生一个标准信号叠加到信号的不同部分，但是结果从不会像使用抛物面碟面得到的那样强大、清晰。
When using a line feed, telescope operators produce a unified signal by adding up the different parts of the signal, but the results are never as strong and clear as they are with a parabolic dish.
本文借助于层栅理论和琼斯矢量综述其机理方面的理论与实验研究工作，并举例说明基于旋转场辨向各种测试手段中信号叠加方案的一般分析方法。
Based on the layered phase grating and revolving field discrimination, a laser Doppler vibrometer system has been studied which provides a potential method of velocity measurement.
叠加提高了信号的信噪比，使研究人员能够更清楚地跟踪每一个独特的信号在月球内部传播的路径和行为。
Stackingimproved the signal-to-noise ratio and enabled the researchers to moreclearly track the path and behaviour of each unique signal as it passedthrough the lunar interior.
如果不进行“调零”修正，所产生的偏置量就会叠加到输入信号上产生误差。
Unless it's corrected by "zeroing," the resulting offset produces an error by adding to the input signal.
偏移电压被直接叠加到信号电压之上，可以被模型化为一个未知的电压源，与已知信号相串联。
The offset voltage adds directly to the signal voltage and can be modeled as an unwanted voltage source in series with the intended signal.
如果不采取措施将叠加到信号上的串模噪声减到最小，串模噪声会对测量产生严重的影响。
Normal mode noise can seriously affect measurements unless steps are taken to minimize the amount added to the desired signal.
它减少了波形失真度和平均叠加次数，提高了生物医学信号提取水平。
Extraction level of biomedical signals is improved by reducing wave distortion and average superposition times.
在地震勘探资料处理中，相位问题是影响有效地震反射信号实现同相叠加的重要因素之一。
The phase problem is one of the important factors that effect seismic reflective signal stack in same phase.
结构物对爆破振动荷载的动态响应，是其对于不同优势频率的细节信号的不同的动态响应的叠加的结果。
Under blasting vibrating load, the dynamic response of the structure results from the superposed results of its dynamic response to various dominating frequency detail signals.
这些延迟会造成“梳状滤波效应”(相位的抵消和叠加)，这会改变拾取信号的音质。
This delay can cause "comb filtering" (phase cancellation and addition), which alters the miked signal's tone.
通过硬件采集的VEP信号经过叠加平均处理后仍含有大量背景噪声，不能直接用于诊断分析。
After processing of overlaying and averaging, VEP Signal acquired by hardware still has a large amount of background noises and is unable to be used in diagnosis directly.
本研究探讨了耳机以叠加法和分离法传送双重听觉信号的知觉特点。
The perception features of double auditory signal transmitted by headphone with overlap method and separate method are discussed in this paper.
本软件也可用于叠加图片来增加暗弱目标的信号强度。
Astrometrica can also be used to stack a number of images, adding up the signal of a faint object.
文章对叠加在ZPW- 2000a型无绝缘轨道电路上的DX3型道口信号设备错误报警问题，提出了合理的解决方案。
The paper suggests a good solution for solving the problem of wrong alarm by DX3 type crossing signal equipment on ZPW-2000A jointless track circuit.
地球物理信号通常表现为多个这类信号的叠加，为多维分形特征。
Geophysical data are the stack of these kinds of signals and thus present multi-fractal characteristics.
最后由信号的振幅和噪音协方差矩阵来确定每道的优化加权因子并作加权叠加。
Finally, the optimum weighting factor of each trace is determined with the signal amplitudes and noise covariance.
提出了一种能够抑制多径干扰的基带波形设计方法，该方法是通过保持传输信息速率不变，在成形滤波器第二个零点叠加信号来实现的。
A waveform design method that can restrain the multipath effect was proposed. It was achieved by placing signal on the second zero point of waveform filter and keeping the information rate.
在叠加剖面中，下伏反射界面的反射信号同相轴呈连续的或带有限个间断点的连续层状图像，各种干扰则呈无规则的图像。
In a stacked seismic section, reflection events from underlying interfaces appesr as a continuous layered image, or a pseudo-continuous layered image with finite breaks, noises being irregular.
例如，在测量小直流电压的系统中，开关的接触电势将会被叠加到信号上。
For example, in a system for measuring small DC voltages, the contact potential of the switch will be added to the signal.
本系统备有两种信号处理方法；叠加平均法和自适应平均法。
In this system, two methods of signal processing, overlapping averaging and adaptive averaging filter, have been used.
实验室内研究需要产生包括混沌噪声在内的各种噪声，并叠加微弱周期信号作为微弱信号检测系统的信号源。
In laboratory study, all kinds of noise including chaotic noise, are needed to be generated, which iterated with weak periodic signal is used to be signal source.
实验室内研究需要产生包括混沌噪声在内的各种噪声，并叠加微弱周期信号作为微弱信号检测系统的信号源。
In laboratory study, all kinds of noise including chaotic noise, are needed to be generated, which iterated with weak periodic signal is used to be signal source.
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