查询词典 signal

Through monitoring of railway signal and making a judgment, can help the track signal maintainer to repair the failure device and avoid accident occurring This thesis designs one kind of railway signal test instrument based on ARM/DSP structure.

通过对铁路信号做出监测以及判断，可以帮助信号设备维护人员对故障设备进行及时修复从而避免事故发生。

It put forwarded the concept of comfortable natural wind at first and confirmed the types of comfortable natural wind signal. Meanwhile, it decided to use the preferential-selecting natural wind signal as the control signal.

研究中首先提出了舒适性自然风的概念，确定了舒适性自然风采样信号的类型，并提出用优选自然风样本作为随机自然风控制信号。

If at this point the mouse on a control chip output identified as bright signal, B tube output for the secret signal, mouse and so on signal processing, and chip processing will cause the receiving component to receive tube B and mouse chip output voltage of light determine the minimal threshold dark changes.

若此时鼠标芯片对甲管输出识别为亮信号，乙管输出为暗信号，鼠标依此对信号进行处理，而芯片的处理必引起接收组件中甲乙接收管的输出电压及鼠标芯片对亮暗判别阀值的微小的变化。

The results show that amplitude of defect signal is adversely affected by lift-off variations,but phase difference between defect signal and lift-off loci is almost unchangeable.After analyzing the characteristics of the phase difference with the chang of frequency,a conclusion that defect signal is approximately vertical to lift-off noise at a well-selected frequency is obtained.

结果表明提离增加会显著降低缺陷信号的幅值，但并不影响缺陷信号和提离轨迹之间的相位差，通过分析相位差随检测频率的变化规律发现：存在一个合适的频率可使缺陷信号和提离干扰之间出现90°的相位差。

Fig.5 mp53 mRNA in situ hybridization signal in human HXO-Rb44 cells(Fig.a, experimental group,EG;Fig.b, control group,CG).The signal as violet-colored fine granules localized in the cytoplasm,EG weaker than CG,×1 000;Fig.c, mp53 mRNA dot blot signal,EG weaker than CG

图6～8 人HXO-Rb44药品细胞 p16、p21WAF1及Rb 免疫调查组织化学反应性，a为实验组，b为对照组，免疫调查反应细颗粒位于药品细胞核和药品细胞质，EG强于CG，×1 000；c为Rb、p21WAF1及p16蛋白斑点印迹免疫调查反应性，EG强于CG。

By the analysis for the characteristic of singular value of ideal signal and noise, it's pointed out that there is a big turning point in the singular value curve of ideal signal, but not in the one of noise, so the concept of curvature spectrum of singular value is proposed, which can effectively describe the turning point state of singular values of noisy signal.

分析了在Hankel矩阵方式下理想信号和噪声的奇异值特点，指出理想信号的奇异值曲线存在一个很大的转折点，而噪声的奇异值曲线则很平坦。

With analysis on the control model, an improved automatic tuning method for arc-suppression coil is proposed, that is: adopting voltage feed forward control to restrain interfere of 50Hz displacement voltage, which can improve the characteristic of the injected signal significantly, make the injected signal without reference to unbalanced network and neutral displaced system. Another innovation is detecting the magnitude of neutral point signal-frequency voltage to judge the resonant state, which improves the sensitivity and accuracy of resonant judgement effectively.

基于对控制模型的分析，提出了一种新的注入变频信号的消弧线圈自动调谐方法：通过电压前馈校正控制的引入，有效抑制了50Hz工频电压对注入信号的干扰，使得注入信号不受电网不对称及中性点位移电压的影响；提出以中性点注入信号电压幅值最大做为新的谐振判据，有效提高了谐振状态判断的灵敏度和准确度。

The two digital signal types are the on-off signal and the pulse train signal.

这两类数字信号分别为通断信号和脉冲序列信号。

The reliability of PLC is very high in the industry control system, and it is superiority in the railway signal system because it can replace signal connector in the railway signal system, the soft touch spot can be used infinitely in theory.

本系统还采用微机监测的方式，监测PLC控制系统工作的可靠性，并将各种段内作业记录备案，实现了机务段的现代化管理。

The link tester's tone generator part generate sound signal and the sound signal will be send to the target cable which connect to the Rj45/Rj11 interface, then near the target cable (about 20cm) will induce tong signal filed .

l 线路通link tester寻线器由于它是利用了感应寻线原理来寻找线缆，所以它不需打开线缆的绝缘层，在线缆外皮上的不同部位找到它。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。