查询词典 analog signal

By sampling echo signal demodulated and A/D transform, sampling value is transmitted to SCM for compare, division, calculation, and exporting gain code to control signal range; furthermore controlling the AGC circuit, realizing amplification control to echo signal, consequently stabilitate the signal range in a window for the later circuit.

通过对检波后的回波信号进行采样，经过A/D变换，采样值送入单片机内部进行比较、判别、计算，然后输出可控制信号幅度的增益码去控制AGC电路的受控级，实现对回波信号的增益控制，从而使得输出信号幅值稳定在一个窗口内，供后续电路处理。

An optical packet exchanger is provided which, in a situation where a transmission path for an optical packet is to be switched by using an address signal, prevents the transmittable capacity for the information signal from being decreased, and which facilitates the extraction of the address signal even if the modulation speed for the information signal becomes high.

提供了一光分组交换器，在一种情况下通过使用一地址信号来交换光分组的传输路径，防止信息信号的可发送容量降低，并且即使在信息信号的调制速度变高时，也便于提取地址信号。

First, by taking into account not only interband effects but also intraband effects, such as carrier heating , spectral hole burning , two-photon absorption and ultrafast nonlinear refraction and the interaction of control pulse and signal pulse in SOA, the relationship between the performance of TOAD (including flatness of switching window, chirp of output signal and extinction ratio of the demultiplexed signal) and the parameters of input pulse (including the wavelength and power of control and signal pulse) are studied.

首先，在考虑到由于带内效应，诸如载流子热效应、谱烧孔效应、超快非线性折射效应和双光子吸收效应而导致得非线性增益压缩效应以及控制光和信号光相互作用情况下，研究了TOAD的各性能参数，包括开关窗口的平坦性、输出信号的啁啾特性、解复用信号的消光比特性等与输入控制光和信号光的波长及功率的关系，在此基础上对TOAD性能进行了优化。

Our method is different to [7], which needs additional end-point detection to cut off cough signal from input signal and then using cough signal to carry out DTW algorithm. In our method, we using sliding window to catch different signal to carry out DTW algorithm, which avoids additional end-point detection. DTW method has computation complexity problem.

有别於相关研究[7]中，需要额外的端点侦测处理，将输入讯号中含有咳嗽声音的部份切割以后，再进行DTW侦测处理，在我们所提出的方法中，利用移动视窗取得不同段落的讯号，进行DTW侦测处理，即可免除额外的端点侦测。

Wavelet multi-resolution analysis is applied to decompose the signal into multiple-level and the wavelet coefficient modules of its high-frequency components are obtained. The wavelet coefficient modules of a broken signal can be extracted by software demising. The threshold of demising is decided by the difference between the wavelet coefficient modules of a broken signal and those of a noise. The wavelet coefficient modules of the broken signal were shown in different levels, then the faults can be detected and distinguished by the integrated features of the variant levels' wavelet coefficient modules.

利用小波多尺度分解技术，将信号进行多尺度的小波分解，得到不同尺度下的信号高频分量的小波系数模值，并根据奇变信号和噪声信号小波系数模值的差异，采用软阈值去噪法，对其高频分量小波系数进行去噪处理，获取不同尺度上突变信号的小波系数模值，实现对故障的检测，并可根据不同尺度上小波系数模值的对应关系，实现对多重并发故障的区分。

First it changed the variety of capacitive into the variety of voltage by charge amplifier ,then demodulates the carrier wave signal modulated by the accelerometer signal and passed thought the low pass filter ,at last ,output a direct current signal which is directly proportional the accelerometer signal ,the circuit has the function of measuring the variety of capacitive and the specialties of higher sensitive and better linearity.

介绍一种可用于微机械电容式加速度计检测的接口电路，该电路利用电荷放大器把电容变化转变成电压变化，再对被加速度信号调制的载波信号进行解调，经过低通放大滤波，最后得到与加速度信号成正比的直流电压信号，具有测量差分电容变化的功能和灵敏度高、线性好的特点。

The design was optimized for maximum signal intensity by simulation and experiments. The size of focal spot in the micro-channel capillary was optimized. Fluorescence signal was enhanced 2～3 times when increasing the diameter of focal spot from 10μm to 50μm (full of the inner wall of capillary), through which the sensitivity and signal-noise ratio were also improved. A technique of using refractive matching liquid was presented. The fluorescence signals were boosted up and the signal collection efficiency was also meliorated when using this method.

通过理论分析和实验优化本系统的设计：优化聚焦于微通道中的激发光斑大小，增大聚焦到毛细管内径中的激发光斑尺寸，使光斑尺寸由最小的10μm增大到50μm，光电倍增管接收到的荧光信号提高了2-3倍，从而提高系统的信噪比和灵敏度；提出在聚焦物镜处加折射率匹配液的方法，加匹配液后的荧光信号得到了增强，因而提高了荧光收集效率和灵敏度。

In order to advance the capability of correlation signal detection method, a new method for LFM signal detection,based on the technology for ambiguity resolution of stagger repeated frequency, is proposed. Using the method, the signal in low signal-to-noise ratio can be detected very well and its parameters can be estimated more precisely too.

本文提出基于重频参差解模糊技术的信号参数估计方法，通过相位解模糊，实现了在低信噪比条件下对信号参数更有效地侦取，并对处于白噪声环境下的窄带和超宽带LFM信号进行了仿真，验证其有效性。

It has proved that under the circumstance of low signal/noise rate, for either single LFM signal or multi-LFM signal, compared with traditional methods, this method can more effectively inhibit different kinds of Gaussian noise, avoid the influence of cross term and identify useful signal.

结果表明，在低信噪比情况下，无论是针对单分量LFM信号还是多分量LFM信号，该方法都可以比传统方法更有效地抑制各种高斯噪声，摆脱交叉项的影响，识别有用信号。

In video processing, good at research design as follows: the freezing of the video signal processing, video signal storage deal, LCD driver board design, TV signal processing, video signal and appears somewhat like a mirror, picture-in-picture deal with such .

在视频处理方面，擅长于如下方式的研发设计：视频信号的冻结处理，视频信号的存储处理，LCD驱动板的开发设计，TV信号的处理，视频信号的倒像和镜像，画中画处理等。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。