一个无反馈的开环（直接）系统直接产生对于输入信号的输出响应。
An open-loop (direct) system operates without feedback and directly generates the output in response to an input signal.
介绍了一种对无检定信号输出，流量上限超过检定系统最大流量的远传式流量计的检定方法。
An introduction is made of a method of calibrating the remote-transmission flowmeter that has no output of calibrating signals and whose maximum flowrate exceeds that of calibrating system.
着重分析了电流参考信号超前角(滞后角)、系统参数和驱动方式对无刷直流电动机系统动态性能的影响。
The influence of the leading Angle (lagging Angle) of the current reference signal the parameters and drive mode of the system to the dynamic characteristics are analyzed.
为了提高直流无刷电动机的控制效果，本文提出了一种基于DSP(数字信号处理器)TMS320 LF 2407 A芯片的高效直流无刷电动机控制系统的设计方案。
To improve the control effect of BLDCM, a novel design of high performance BLDCM control system based on DSP (Digital Signal Processor) TMS320LF2407A has been put forward.
研究采用高频注入法的无传感器直接转矩控制系统，通过注入特定的高频信号来追踪电机转子的空间凸极效应，以此得到转子位置和速度值。
In the sensorless control system, a specified high frequency signal is injected in to trace the magnetic anisotropy of the motor, by which we can get the value of rotor speed and position.
本文所介绍的天线有别于一般的侦察雷达，是一种无源的接收目标雷达信号的天线接收系统。
The antenna introduced in this paper is different from the ordinary reconnaissance radar, which is a passive antenna receptive system receiving target radar signals.
目的探讨研制一种无创性生理信号检测系统。
Objective: To search a kind of noninvasive physiologic signal examining system.
本文的重点在于系统的磁路设计，采用信号相关性运算比较被测钢管信号和模板信号缩小端头盲区的“无盲区”方法。
The main parts of the article are the designation of magnetic path for the detecting system and the "no blind areas" method, which is based on the signal relativity operation.
在适当场景下，引入无源中继系统可以达到解决弱信号的目的，同时不影响网络质量。
In some suitable condition, passive relay system can solve the problem of weak signals coverage without effects the network quality.
探讨了目前电梯门机系统存在的问题，提出了应用DSP数字信号处理技术为核心，无刷直流电机为驱动机的系统方案。
Discusses the problems existing in the door motor of elevator, puts forward the system project which takes DSP digital signal processing technology as core, DC brushless motor as driver.
在实际系统中，无源性是系统耗散性概念的一个特例。无源性正是供给率为输入输出信号之乘积形式的特例。
We consider passivity of system, a special class of dissipative systems, in which supply rate is represented by the product of the system input and output.
无源雷达系统接收到的信号有四部分组成：直达波信号、静物回波信号、动目标回波信号以及干扰噪声。
The signal received by passive coherent radar contain four-part: direct signal, echos of still object, echos of moving object, and interference.
由于遥测伺服跟踪系统无距离信号，目前国内外公开资料中还无一数学模型适用于此类系统。
No suitable mathematical model for the telemetry servo-tracking system without distance signals is discussed in unclassified articles.
站间是以车载设备为主的，由无源点式应答器、GPS列车卫星定位系统、多机校核系统构成的列车信号引导系统。
The train signal guiding system (on board) consisting of passive intermittent responder, train GPS system, and multiple computer checking system are equipped on the section.
侧音测距系统的最大无模糊距离受到侧音信号最低频率的限制。
The unambiguous distance of tone ranging system is limited by the lowest frequency of tone.
根据小波分析理论，针对无源北斗导航定位系统初始校频问题，提出了一种基于小波分析的信号特征提取算法。
According to wavelet analysis theory, a signal picking up algorithm based on wavelet analysis is proposed to solve problem of passive CNS initial frequency calibration.
基于DSP的全数字化无刷直流电机伺服系统，由包括DSP和片外存储器的以TMS320F240组成的小系统，及反馈信号采集模块2部分组成。
The servo system for full-digital BLDC motor consists of DSP, memory subsystem based on TMS320F240 and the module for feedback signal acquisition.
根据实验电路图抽象出信号传播无向图，建立系统的信号传播机制。
The signal in system is transmitted by the undirected graph which is abstracted from experiment circuit diagram.
最后，本文简要地分析了基于模拟电视信号的无源探测性能和定位精度，并分别与基于数字电视信号的无源雷达系统的相应性能作了比较。
Last, after analyzing signal characteristics and locating performance of analog TV, its detecting characteristics and locating performance are compared with those of HDTV signal.
介绍了一种基于DSC（数字信号控制器）无刷直流电机无传感器新控制方法，包括工作原理和系统组成。
This paper introduces a new control method of sensorless brushless DCmotor based on DSC, and gives its essential theory and system structure.
介绍了圆柱销的无接触精密检测系统，阐述了其光学系统、信号处理系统的工作原理。
In this paper, the precise measuring system for cylindrical cotter with no - contact is introduced.
系统在10分钟内(从发射车进入阵地定点至能给出“瞄准好”信号的时间)无依托瞄准总精度为1.5 '。
The total unsupported pointing accuracy of the system is 1.5arcmin within 10 minutes time from vehicle entering into the l...
系统在10分钟内(从发射车进入阵地定点至能给出“瞄准好”信号的时间)无依托瞄准总精度为1.5 '。
The total unsupported pointing accuracy of the system is 1.5arcmin within 10 minutes time from veh...
系统在10分钟内(从发射车进入阵地定点至能给出“瞄准好”信号的时间)无依托瞄准总精度为1.5 '。
The total unsupported pointing accuracy of the system is 1.5arcmin within 10 minutes time from veh...
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