查询词典 signal

In the system of signal acquisition, the A /D converter confined the input value of analog signal voltage.

在数字信号采集系统中，A /D转换器对输入的模拟信号电压有一定的限制。

The A/D converter is the bridge from analog signal to digital signal and the key and bottleneck of the development of electronic technology.

A/D转换器是模拟信号通向数字信号的桥梁，是电子技术发展的关键和瓶颈。

Many signal processing algorithms aim at complex signals,so it is important to create complex signal from the bandpass real signal.

许多信号处理算法是针对复信号的，因此，从实带通信号中产生复信号是信号处理中的一个重要问题。

Then, it introduces the main contents of the signal handing for chillers, such as signal picking and signal pre-handing.

接着，论文介绍了冷水机组故障诊断系统信号处理的主要内容，包括信号采集、信号的预处理等。

The time-history velocity response signal of pile can be decomposed by Sym wavelet. The power spectrum value can be extracted from some specified spectrum range. These values from one signal makes up the characteristic vector representing this signal. The relationship between characteristic vector of pile and pile defect type can he established by using BP artificial neural network. Abundant time-history velocity response signals of pile can be acquired by numerical simulation method.

利用Sym小波对基桩速度响应时程曲线进行小波分解，对指定频带上的信号分量进行特征值提取，提取的特征值为反映各频带范围内体现能量分布的功率谱均值，提取的特征值可构成反映信号特征的特征向量，同时利用BP人工神经网络的非线性映射特性建立特征向量和基桩缺陷类别之间的一种对应关系。

It is the relationship of the true signal to the noise signal, known as the signal-to-noise ratio, which is of most interest to the communication engineer.

这是关系的真实信号，噪声信号，为信号与噪声的比例，这是最感兴趣的通信工程师。

Fluxgate sensor inducts the environment magnetic field, outputs the compass course signal to the CPU system. This signal then is transformed into digital signal. CPU processes it and then gains compass course. When use rotary mathod to measure the deviations, CPU first collects timed the compass course come from the Fluxgate sensor, then calculates automatically their deviations and the correspondent coefficients. Based on all this, CPU can calculates out the real-time magnetic course or the real-time ture course, then sents them to display on the digital displayer.

本系统采用磁通门传感器来直接敏感合成磁场，输出罗航向直流感应电压信号送A/D转换器进行转换，并经CPU计算处理得到罗航向度数值，以及利用&旋回法&测定自差时，CPU按照船舶旋回的角速度定时地采集罗航向度数值，在此基础上CPU自动地计算出各采集罗航向上的白差，再由此计算出自差系数，并实时地解算出磁航向值或真航向值，送数码显示器显示。

To convert the signal to IF, a local oscillator signal is mixed with the RF signal to produce the IF frequency of 10.7 MHz.

如果把信号，本地振荡器信号与射频信号混合，产生了070兆赫的频率。

Secondly, making use of the good time frequency characteristics of the wavelet analysis in the signal processing, the wavelet softthreshold filtering of the swing CO2 welding voltage signal under the arc discharge sense was carried out, showing the possibility of removing the peak current of the shortcircuit transition and improving the signal-to-noise ratio.

二是利用小波分析在信号处理上良好时域、频域局域性，对电弧传感方式下的摆动焊接电流进行了软阈值滤波，取得了良好的效果，消除了短路过渡所造成的峰值电流，提高了信噪比。

dwpi patent database of thomson group was chosen, led signal display technology patents between january 1, 1965 to december 31, 2008 were collected and the associated patent database was established. derwent innovation index patent analysis system was chosen, these led signal display technology patents were analyzed deeply from the total amount of patent applications, key led patents and key patent holders respectively. the present patent status of abroad and china's were compared. the patent strategy of developing our nation's led signal display technology was also discussed.

选择thomson集团的dwpi英文专利数据库，采集1965年1月1日到2008年12月31日期间的led信号显示技术专利文献，建立英文专利数据库；再选择derwent innovation index专利分析系统，分别从专利申请总量、重点专利技术和重点专利持有人等方面，对led信号显示技术专利进行深入的分析，并对比分析国内外led信号显示技术专利的现状，提出发展我国led信号显示技术的专利策略。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。