查询词典 signal

It is characterized by : the mechanical mouse moves and rolling around key operations into switching signals Circuit square with the square wave signal to substitute for the original mouse photosensitive sensors within the pulse signal, using the switch can be achieved mouse cursor movement and the mouse double-click a single operation, and the use of transmitting and receiving circuits instead of the mouse line, a remote-control mouse.

其特征是：将机械鼠标的滚动动作和左右键的作转换成开关信号，用方波电路产生的方波信号代替原鼠标内光敏传感器的脉冲信号，用相应的开关动作可以实现鼠标光标移动和鼠标的单双击作，而用发射和接收电路代替原来的鼠标线，可以实现鼠标的遥控。

This produced a lot of message in time and frequency area for analysis electroencephalogram.For electroencephalogram signal, they contain much temporary signal.

对于脑电信号，其中含有大量瞬态信号，这些信号对于疾病的诊断有重要的价值。

Curvilinear calcification suggests an aneurysm but is a less specific finding because it can also occur in craniopharyngiomas and sphenoidal masses. The intense enhancement of the residual lumen is relatively specific, but differentiation from other masses may be difficult on CT scans depending on the timing and degree of vascular enhancement. The MR imaging features are usually diagnostic, although they can be very subtle [2]. Significant signal heterogeneity is seen with T1 hyperintense signal due to subacute thrombus or flow related enhancement. Areas of T2 hypointensity can be seen due to intracellular deoxy or methemoglobin, calcification, or flow void.

线样钙化提示动脉瘤，但不是一个非常特异的征像，因为这也可以见于颅咽管瘤和蝶骨肿瘤，管腔样明显强化更特异些，但是在CT上与其他肿瘤鉴别可能是困难的，因为这取决与增强的时间与血管强化的程度，MR的特征性表现是更具有诊断意义的，即使有时候可能表现的非常细微，在T1上可以看到明显的不同信号成分，这是由于亚急性的血栓或流动相关增强效应，T2序列上可以看到低信号区域，这是由于细胞内脱氧或高铁血红蛋白，钙化，或流空效应。

As the mine accidents happen frequently in recent years, the detecting technology for microseism becomes much more important. However, there is no advanced microseism detecting system at home. It's pretty important for microseisms denoising and Reversion. A wavelet denoising method is presented here to process microseism signal, and the microseism record can get high signal to noise ratio. Meanwhile based on the software of LabVIEW, s design of real-time detecting system for microseism based on virtual instrument is presented. The advantage of the virtual instrument was sufficiently exerted to achieve the real-time detecting and analyzing of the microseism.

以往基于DSP或其他单片机的微震系统，其资源的有限性很难达到理想的采集效果，同时也难以完成先进算法的实现，而对微震信号的去噪与还原在监测系统中起着很重要的作用；在深入分析小波变换的信号去噪方法基础上，对微震信号进行了处理，得到高信噪比的微震记录，实现了对噪声的有效抑止；同时在LabVIEW平台软件设计的基础上，实现了一种基于虚拟仪器微震实时检测的设计方案，充分发挥了虚拟仪器的优势，结果表明基于LabVIEW的微震系统能很好地完成实时监测及其分析。

It discusses the design of hardware circuit of the vector analyzer, including the design scheme, the module of microwave receiver, digital IF, capture base signal, and Digital Signal Processing.

在硬件方面详细介绍了总体设计方案、微波接收模块、中频调理和数字化模块、基带信号捕获和数字信号处理器模块等。

By installing the microwave antenna and gravity accelerometer to the rotating flying object, the Digital Signal Processing systems inside it can receive the linear polarization electromagnetic wave emitted by the land microwave transmitter and the output signal of the accelerometer.

论述了在高速的旋转飞行体上安装微波天线和重力加速度计，由地面微波系统发射线极化微波，飞行体上的信号处理系统利用接收到的微波的线极化特性和重力加速度计输出的信号波形，对其飞行状态进行精确识别的技术。

Is 1000 ℃ diagraph scopes to 0~, adoption thermocouple, such as Nie chrome thermocouple, cent degree is an EU, it outputs the signal as 0~41.32 mVs, is changed to send a machine by milli- Fu, output a 0~10 mas, then convert into the 0~5 V electric voltage signal after the electric current-electric voltage transformation electric circuit.

对于0~1000℃的测量范围，采用热电偶，如镍铬热电偶，分度号为EU，其输出信号为0~41.32mV，经毫伏变送器，输出0~10mA，然后再经过电流——电压变换电路转换为0~5V电压信号。

Input signals are generated by either a 3 to 15 psi pneumatic signal, or a 4 to 20 milliamp electro-pneumatic signal.

输入信号是靠3至15 psi气动信号，或4至20毫安电-气信号而产生。

Positioner is used to control or throttle flow by modulating the air to the actuator in response to an external 4-20 milliamp control signal input which is converted to a proportional 3-15 psi pneumatic signal used by the positioner.

当外部4~20毫安控制信号输入转换成线性3~15 psi气动信号输入被采用后，定位器通过调节执行器气源流量来实现控制和调节阀门流量。

Positioner is used to control or throttle flow by modulating the air to the actuator in response to an external 4-20 milliamp, 0-5 VDC, or 0-10 VDC control signal input which is converted to a proportional 3 - 15 psi pneumatic signal used by the positioner.

当出现4~20毫安，0~5伏直流电，或0~10伏直流电控制信号输入时，将其转换成能用于定位器的3~15 psi线性气动信号后，这种定位器通过调节执行器气源流量来控制或调节阀门的流量。

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。