查询词典 control signal

Credits earned from successful completion of the courses such as Analogue Electronic Circuits, Digital Electronic Circuits, Signal %26amp; system, High-Frequency Circuit, Digital Signal Processing, Communication Principle, Mono-computers Principle and Application, Theory of Electromagnetic Field, Automatic Control Principle will entitle one the conferral of minor certificate.

五、授予学位：工学学士Ⅴ Degree Conferred： Bachelor of Engineering 六、辅修专业说明Ⅵ Conferral of Minor Certificate：选修并通过本专业如下所有课程：模拟电子线路、数字电子线路、信号与系统、高频电路、数字信号处理、通信原理、单片机原理与应用、电磁场理论、自动控制原理，共30个学分可获得本专业辅修证书。

Thus, the signal information is treated as virtually encoded data for the channel of interest, and may comprise essentially any type of signal that is known or determinable, such as a pilot, synchronization, traffic, or control channel.

因此，将信号信息作为针对感兴趣信道的虚拟编码的数据进行处理，可包括基本上任何类型的已知的或可确定的信号、如导频、同步、业务或控制信道。

According to pulse oddment counting principle, a pulse signal counting circuit for differential ring lasers is designed based on XC3S400AN, a kind of FPGA chip with high performance. The structure of the circuit is described in VHDL language and realized through sequence control and synchronization process of high accuracy/frequency clock signal.

根据脉冲零头计数原理，应用高性能的FPGA芯片XC3S400AN，基于VHDL结构描述语言，对高精度高频率时钟信号进行时序控制及同步处理，设计出一种四频差动激光陀螺脉冲信号计数电路，并进行了实验测试。

The topic in view of the existing technique level, the main factors, which influence the measurement precision of the large scale test system, are analyzed in this paper, and the solutions improving the precision are put forward.1 using the multi-channel independent AC to transfer DC module, the power supply of the digit part and the simulation part is discerption, reducing the crosstalk between the digital signal and the simulated signal;2The feedback self-checking module is constructed by singlechip compositive 16 high accuracy A/D , established a closed-loop control system through this module and improved system's overall precision effectively.

本课题针对现有的技术水平，分析了影响大型检测系统测量精度的主要因素，提出了提高精度的具体方案和办法：1采用了多路独立交流转直流模块，数字部分与模拟部分分开供电，减小了数字信号与模拟信号之间的串扰。2利用单片机集成的16位高精度A/D构建了反馈自检模块，通过该模块建立了一个闭环控制系统，有效地改善了系统的整体精度。

The matching device automatic test-board is the checking tool checked the matching device capability, precision and reliability are the technique of the the matching device, the precision is the precondition of checking the matching device, the reliability is credibility degree of the decision checking consequent.the topic in view of the existing technique level, the main factors, which influence the measurement precision of the large scale test system, are analyzed in this paper, and the solutions improving the precision are put forward.1 using the multi-channel independent ac to transfer dc module, the power supply of the digit part and the simulation part is discerption, reducing the crosstalk between the digital signal and the simulated signal;2the feedback self-checking module is constructed by singlechip compositive 16 high accuracy a/d , established a closed-loop control system through this module and improved system's overall precision effectively.

匹配装置自动测试台是检测匹配装置性能的检测工具，其重要的技术指标是精度与可靠性，其高精度是作为检测匹配装置的前提，可靠性是决定了检测结果的可靠度。本课题针对现有的技术水平，分析了影响大型检测系统测量精度的主要因素，提出了提高精度的具体方案和办法：1采用了多路独立交流转直流模块，数字部分与模拟部分分开供电，减小了数字信号与模拟信号之间的串扰。2利用单片机集成的16位高精度a/d构建了反馈自检模块，通过该模块建立了一个闭环控制系统，有效地改善了系统的整体精度。

The computer separately connects and controls the I/O end and A/D converter; the I/O end connects and controls the X, Y axis driving circuit and the semiconductor laser; the X, Y axis step-by-step driving circuit connects and controls the X, Y step-by-step electrical machines to control the dimensional platform; the beam of the semiconductor laser passes through the focusing drawtube with 0.1mm diameter to form the facula with the diameter less than 0.1mm; the facula irradiates on the detector surface of the XY dimensional displacement platform to produce the corresponding electric signals; the detector surface connects the A/D converter through the amplifier; the electrical signal is amplified and is converted into the data signal by the A/D converter and is sent to the computer for processing.

由计算机分别连接并控制I/O端口和A/D转换器，I/O端口分别连接并控制X、Y轴步进电机驱动电路和半导体激光器，X、Y轴步进电机驱动电路分别连接并控制X、Y轴步进电机，从而控制二维位移平台，半导体激光器的光束经过设有直径0.1mm小孔的聚焦镜筒形成＜0.1mm直径的光斑，光斑照射于设在XY二维位移平台上的探测器表面使其产生响应的电信号，探测器表面经放大器连接A/D转换器，电信号经放大器放大后，由A/D转换器转换为数据信号送计算机处理。

On account of the fact that the signal of total boiler radiant energy fully embodies the changes of combustion conditions in a boiler and can foreshow the variation trend of inlet flue gas temperature , the signal of total boiler radiant energy is introduced in the control system for superheated steam temperature .

鉴于锅炉总辐射能信号充分体现了锅炉内燃烧工况的变化，能提前反映烟道进口烟温变化趋势，为此，在过热蒸汽温度控制系统中引入了锅炉总辐射能信号，通过检测烟气温度及其变化趋势来提前调节减温水量，从而改善主蒸汽温度调节的品质。

In this design, a single-phase exciting signal generated by RC oscillatory circuit is applied to the rotor of synchro. The sine and cosine signals induced on stator are amplified by instrumentation amplifier and connected to the converter AD2S83, which is designed according to tracking goniometry. Digital logic control and address encoding are processed by FPGA, and the converted 16-bit parallel angle data and direction signal are transferred to DSP.

本设计中通过RC振荡电路为感应同步器转子提供单相激磁信号，定子上感应出来的正弦和余弦两路信号通过仪表放大器的差分放大之后提供给基于跟踪型测角原理的转换芯片AD2S83，通过FPGA实现数字逻辑控制以及地址解码，将转换后的16位并行转角数据以及方向信号送入DSP中。

In this design, a single-phase exciting signal gener AT ed by RC oscill AT ory circuit is applied to the rotor of synchro. The sine and cosine signals induced on st AT or are amplified by instrument AT ion amplifier and connected to the converter AD2S83, which is designed according to tracking goniometry. Digital logic control and address encoding are processed by FPGA , and the converted 16-bit parallel angle d AT a and direction signal are transferred to DSP.

本设计中通过RC振荡电路为感应同步器转子提供单相激磁信号，定子上感应出来的正弦和余弦两路信号通过仪表放大器的差分放大之后提供给基于跟踪型测角原理的转换芯片AD2S83，通过 FPGA 实现数字逻辑控制以及地址解码，将转换后的16位并行转角数据以及方向信号送入DSP中。

It is a computer control system with the high speed DSP single-chip computer TMS320VC33.The count functions of the signal of accelerometers and the signal of odometer have been designed with CPLD,and the communication functions have been achieved with peripheral equipment.

整个系统是以数字信号处理单片机TMS320VC33为核心的单CPU结构的计算机系统，CPLD的设计主要是实现对加速度计和里程表的输出信号的计数及实现DSP与外部的通信。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。