查询词典 signals

The basic information consists of luminance information and chrominance difference signals. During the composition into one signal, the chrominance signals can interfere with the luminance. Therefore, the television technique has to adopt appropriate modulation methods to eliminate the interference between luminance and chrominance signals.

基本信息由亮度信息色差信号组成，由于在合成中，色度信号可能会干扰亮度信号，因此，还要采用适当方法消除色度信号和亮度信号之间的干扰。

Third, the discussion of the corresponding relationship of the real angles to the apparent real angles is performed, the asymptotic bias and MSE of real angles are given. Fourth, based on above conclusions, the analysis of two typical cases is made by numerical analysis and computer simulation: Case A when the impinging signals are divided into desired signals and interfering signals: it is shown that similar to Cyclic estimation of DOA, the smaller the separation between interfering direction and signal direction, in general, the smaller the estimation variance.

首先，研究了无穷快拍时信号数目有误的最大似然估计，引入了视在真实角度的概念；其次，导出了视在真实角度最大似然估计大样本时的分布以及渐近均方误差的解析表达式，而且还证明了：Stoica性能分析结果是现在的分析结果在信号数目准确时的特例；第三，讨论了真实角度与视在真实角度的关系，给出了真实角度的渐近偏和渐近均方误差；第四，依据前面的结果，利用数值分析和模拟实验的方法对两种典型情况做了分析： 1 在入射信号被分为干扰信号和所需信号情况下：结果表明：与CyclicDOA估计一样，干扰方向与所需信号方向靠的越近，所需信号估计的方差越小，越远离，方差越大。

The main results that have been accomplished in the paper are listed below: 1. Accumulated lots of experimental data of life-parameter signals with the equipment of detecting the wounded. 2. Provided a method of frequency domain signal integration based on FFT to detect non-contact life-parameter signals. 3. Built up an algorithm of lifeform identification which was based on the time and the frequency domain analysis of life-parameter signals. 4. Developed an application software of life identification for the wounded detecting equipment system S2000?

取得的主要研究结果有：1、用现有的伤员探测实验平台采集了大量生命参数信号，积累了实验数据，为信号处理及信号特征提取研究打下良好的基础；2、提出了基于FFT频域积累的方法进行非接触生命参数信号分析与检测；3、综合时域、频域中生命参数信号特征分析的实验结果，形成生命体识别算法；4、为52000—l型伤员探测装备样第2页第四军医大学硕士学位论文机研制了伤员探测生命体识别软件系统。

The use of mobile phone signal isolator, can be automatically designated to form the framework of an effective s你好eld to block mobile phone signals in the magnetic field, edsun-2010 mobile phone signal blocking s你好elding device is 10-40 meters in diameter in the range of effective to make GSM / DCS / CDMA / PHS mobile phone models, such as in你好bitory signals to the space to block the effects of mobile phone signals, so that can not be made and answered the phone, but do not affect the space outside the normal mobile phone signal transmission, leaving the MDPB set up mobile phone signal jammer-type space, the phone signal will not be interference, isolation, be able to resume normal use.

施用型手机信号断绝器，能在指定的规模内AUTO形成能够有用阻断手机信号的屏蔽磁力场，edsun-2010型手机信号阻断器的屏蔽直径是10-40米规模，在该规模内有用使GSM/DCS/CDMA/PHS等型号的手机信号被按捺，到达该空间内手机信号阻断的效验，使手机无法打出以及接听，但又不影响该空间之外的手机信号的正常传道输送，离开设置有MDPB型手机信号滋扰器的空间之外，手机信号将不会被滋扰、隔央视屏蔽外文减写离，便可恢复正常施用。

More specifically, the invention relates to an antenna (1) comprising: first (2) and second (3) linear sub-antennas which are equipped with sensors (21-2M, 31-3N) forming first and second line segments and generating a basic signal, the angle between the respective directional vectors of the first and second tangents to the midpoint respectively of the first and second line segments being between 30 DEG and 150 DEG ; an antenna processing device (4, 5) forming combined signals; a signal-processing device (6, 7) generating combined useful signals; a device (8) for calculating the correlation coefficients (Cij between the combined useful signals; and a device (8) for generating a detection signal (Rij when a correlation coefficient exceeds a threshold.

更具体地，本发明涉及一种天线(1)，包括：带有形成第一和第二线段并产生基本信号的传感器(21-2M，31-3N)的第一(2)和第二(3)线性子天线，第一和第二线段各自中点的第一和第二切线的对应方向矢量之间的夹角在30°和150°之间；形成组合信号的天线处理装置(4，5)；产生有用组合信号的信号处理装置(6，7)；计算有用组合信号之间的相关系数(Cij的装置(8)；以及当某相关系数超过阈值时产生检测信号(Rij的装置(8)。

That system could collect simulation signals from four routes ( the height of the combine harvester, the grain humidity, the grain temperature and the grain flux) at real time, digital signals from two routes (field speed and rotate speed of grain elevator ) and GPS differential signals.

该系统能够同时集割台高度、谷物水分、谷物温度和谷物流量等4路模拟信号以及地速和升运器转速等2路数字信号和GPS差分信号，并且能够每隔1秒钟向CF卡存储一次信息。

A key point in Short Time Fourier Transform is the choice of window function. Although rectangle window is regarded as the first choice because it's featured by integral harmonic to filter signals and by DC component, decaying DC component and frequency shift of signals cause great error to rectangle window STFT. In addition, transient signals contain rich information of faults, but the fixed time window of STFT fail to collect these information.

STFT 算法关键问题之一是窗函数的选择，矩形窗以滤除信号整数次谐波和直流分量的特点自然称为首选窗，但衰减直流分量和信号的频率偏移对矩形窗 STFT 造成了很大误差；其次，暂态信号中含有丰富的故障信息，傅立叶变换固定的频窗忽略了这些特征信息。

In order to reduce the bandwidth for broadcasting the traditional TV signals, the interlaced video signals are used to transmit, but the flat-panel displays can not directly display the interlaced signals.

中文摘要爲了降低电视广播时的频宽，电视系统采用交错式的影像讯号来传送，但是平面显示器无法直接将交错式讯号直接播放，必须经过解交错的处理，将交错式讯号还原为循序式讯号，而解交错演算法的好坏，将直接影响显示器的画质。

There were no significant facilitating effects to the retention of signaled information in the overuse of text signals condition, but there were in the selective use of text signals condition. Experiment 3, in which 2 small experiments contained, studied the effects of reader-based factors. Experiment 3a examined the effects of the familarity to the text topics and the readers' reading levels. Experiment 3b explored the effects of cognitive style and the intention to use the text signals. The results were as the follows: There were no significant difference between the signaled and unsignaled conditions in the circumstance of high familarity to the text topics, but there were significant differences between them in the circumstances of lower familarity to the text topics. There were no significant differences between the signaled and unsignaled conditions for the field-independent participants, but there were for the field-dependent participants. All the participants with different reading levels were helped by the text signals.

实验3 对不同主体因素条件下文章标记效应进行了研究，分2个分实验，实验3a以高中二年级学生为被试，研究了文章主题熟悉程度与阅读水平对文章标记效应的影响，实验3b以初中二年级学生为被试，探索了读者不同的认知方式与标记利用的意向对文章标记效应的影响，实验3结果发现，读者的阅读水平、对文章主题的熟悉程度、认知方式和利用标记意向等因素影响着文章标记效应，在文章主题熟悉的条件下，有无文章标记无显著差异，但在主题不熟悉条件下，有文章标记的效果显著优于无标记的效果；对场独立被试而言，有无标记无显著差异，但对场依存被试来说，有标记条件显著优于无标记条件；文章标记对不同阅读水平被试都有显著促进效应；文章标记利用意向对场独立与场依存被试都有显著促进效应。

This paper presents a method, which uses the vortex sensor for gathering location signals of the narrow groove. In terms of the symmetrical characteristic of the edge of the signal, the paper adopts "reverse sequence cross correlation" method,i.e. cross correl ation analysis between the reverse sequence and original signals. This method makes full use of all the process of the signals, filtrating the stochastic signals, and can precisely locates the center of the groove.

文中采用了电涡流传感器来采集窄槽的位置信号，利用信号边沿部分对称的特点，采用了&倒序列相关&的方法，即用倒序信号与原信号进行互相关分析，充分利用了信号的全过程，滤除了信号中的随机成分，精确地求得窄槽的中心位置。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。