查询词典 train signal

Aiming at the signal processing problems that exist in online fault diagnosis for train running gear, based on discussing the principle of characteristic spectrum analysis, a method of full period and uniform angle sampling is applied, which transfers the vibration signal from time domain into angular domain. The angular domain signal is transferred into corresponding characteristic spectrum using FFT. Through spectrum estimation and analysis, fault characteristic spectrum values of running gear components are acquired to distinguish their faults.

在讨论特征分析方法原理的基础上，针对机车走行部故障在线监测过程中存在的信号分析与处理问题，运用整周期等角度采样方法将时域振动信号转换为角域信号，采用FFT变换将角域信号变换为对应的特征频谱，通过谱估计、谱图分析得到机车走行部各零部件的故障特征谱值，再根据该特征谱值识别机车走行部各零部件的故障。

Based on the research of signal processing and detection performance analysis,the joint criterion, which combines the detectable velocity percent with the effective system cycle is presented.GMTI performances of some classical formations,such as the Cartwheel, Pendulum,SAR-Train and so on,are evaluated by it.

在信号处理和检测性能分析的基础上，提出了一种测速比和时间效用比的联合指标，作为衡量编队系统整体GMTI能力的标准，比较了Cartwheel、Pendulum、SAR-Train等典型编队的GMTI性能。

When digit signal orbital circuit is adopted in the equipment, which is used to transmit train-to-wayside information and location train position, the length of digital signal orbital circuit should be the minimal measure unit of distance interval between trains.

采用数字轨道电路作为车－地信息传输设备及列车定位设备时，列车之间的安全间隔距离必须以数字轨道电路的长度作为最小计量单位。

With the train speed increasing, it's required for the motorman to drive according to the direction of cab-signal, rather than the ground signal. It demands a hundred percent preciseness of the reliability while the cab-signal working.

随着列车运行速度的提高，要求司机按照机车信号指示开车而不看地面信号，这对机车信号工作的可靠性提出100%无误差的要求。

Orbit train detection, train orbit before the signal, information processing system will be collected signal processing, the corresponding train sentence parking orbit.

详细说明：列车入轨检测，列车入轨前发出信号，信息处理系统将采集信号处理，判决列车进入相应轨道停车。

In view of the problems existed in multi-level train hoisting signal system of coal mine, a kind of simple and practical hoisting signal unit combining the requirement of hoisting signal with practicality is designed.

针对煤矿多水平串车提升信号系统存在的问题，按提升信号的要求结合实际设计一种简单实用的提升信号装置。

In a signal box, a map of the stretch of track the signal box is controlling is normally put up on the wall, and when a train enters a particular block, a light representing that block, alight representing that block on the map lights up to show the train' s location.

在信号塔内，一个控制信号线路图通常置于墙上，当一列车驶入特定的区段时，该区段的灯亮起以显示车的位置。

The key of this task is how could we get the orderliness of train traveling signal. There are some introduction to the analyse ways of train's approaching signal. It emphasizes on the analyse of using syntony demodulation technology to final the long-distance coming train. At the same time, it gives a preliminary analyse in the signal for different cases, takes a research on the identified technology for the coming train, designs and assembles the hardware and software of this system. All of them have got past the test on the spot and got a satisfying result""

课题中的关键是如何得到列车运行信号的特征规律，在本文中对这些列车接近信号的一些分析方法作了介绍，着重分析了采用共振解调技术发现远程来车的信号，同时针对不同情况下的信号进行了初步分析，研究了来车的识别技术，并对系统的软硬件进行了设计和组装，通过了现场试验，得到了令人满意的结果

The realization monolithic integrated circuit system double audio frequency, this radio has used double audio frequency decoding chip MT8870, demodulates the tonic train signalling from the frequency-modulated signal, and separates the double tonic train signalling from the tonic train signalling to enter the double audio frequency decoding electric circuit implementation letter command to decode, thus carries on the low gear rate using the frequency modulation channel the control command transmission.

为实现单片机控制的双音频解码，本收音机采用了双音频译码芯片MT8870，从调频信号中解调出音频信号，并从音频信号中分离出双音频信号进入双音频解码电路实行信令解码，从而利用调频信道进行低速率的控制指令的传输。

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。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。