英语单词大全
词典释义 例句

fixed signal

英 [fɪkst ˈsɪɡnəl] 美 [fɪkst ˈsɪɡnəl]
电力
fixed signal
网络  固定信号; 固定信号机; 讯号灯

  1. The frequency signal is mixed with a fixed frequency signal, and goes through a low-pass filter. Then the approximate stationary low frequency signal is predicted using ARMA model;
    通过与固定振荡频率的信号进行混频、低通滤波得到差频信号来反映油水浓度的变化。对具有近似平稳特征的低频信号建立ARMA预测模型；
  2. The recursive in order least-squares ( LS) algorithms can be applied to estimation and identification of FIR or AR system parameters where a fixed set of input signal samples is available and the order of the model is un-known.
    阶递归最小二乘（LS）算法适用于观察样本个数固定且模型阶数未知时FIR或AR参数的最佳估计和识别问题中。
  3. Materials and Methods With a fixed monitor unit or a fixed signal collecting time, the output factors were measured under a Varian clinic-6 and a Mevatron 77 linear accelerators.
    材料与方法在VarianClinic－6和Mevatron77电子直线加速器下采用固定机器输出量和固定测量电离室信号采集时间两种方法测量了输出因子。
  4. The resistance ratio of soil can be set as a fixed value, a sine signal or a signal according to the soil data obtained from a specific field.
    系统可以模拟土壤比阻为固定值、正弦信号或实测的土壤扰动力信号等输入条件下的加载力。
  5. This paper introduces a kind of rough property test method of radar receiver with on-line test, which estimates radar property according to the signal noise ratio of fixed object echo signal.
    为了对雷达接收机性能进行在线测试，本文提出一种雷达接收机性能粗略测试方法，该方法是根据固定地物回波的信杂比来估测雷达的工作性能。
  6. Adjusting the switching frequency at which the signal is time-division transferred, the basic frequency signal is transferred through n branches within one signal cycle efficiently, and each branch works for a fixed 1/ n of the signal period.
    调控电路分时传递的切换频率，将主频信号在一周期内由n条支路在其固定的1/n时段分时有效地传递，其合成即为滤波器传递的主频信号。
  7. From fixed time signal control system, responsive control system to adaptive control system, urban traffic control system has gone through several decades of development and continues developing with the development of technology.
    城市交通控制系统经过几十年的发展，从固定配时信号控制系统、感应式控制到自适应控制系统，不断地随着科技的发展而进步。
  8. According to application much function block is fixed and fabricated in 0.6 μ m mixed signal CMOS process.
    根据应用系统确定了保护芯片所需功能模块，然后采用0.6μm混合信号CMOS工艺制作。
  9. The coefficient error and the fixed point calculation error of the digital signal processor in a TDM/ FDM transmultiplexer are analyzed, so are their effects on the frequency performance and system noise of the processor.
    本文分析了TDM/FDM变换复接系统中数字信号处理器的系数误差和定点运算误差，以及两种误差对于系统特性和噪声特性的影响。
  10. Application of some experience and reference for the fixed loading and unloading and automatic signal system in main shaft
    主井定量装卸载及信号自动化系统的应用
  11. In many projects surveys, all needs some kind of fixed frequency sine signal to take the drive source, mainly proposed and introduces the design and the realization method of one kind of high accuracy sine drive Signal Source.
    在许多工程测量中，都需要某种固定频率的正弦信号作为激励源.本文介绍一种高精度正弦激励信号源的设计与实现方法。
  12. Improvement of Fixed Frequency Sine Signal Generator by DDS
    基于DDS的固定频率正弦信号发生器的改进
  13. The Simple Circuit With High Performance in Detecting Main Pulse of non Fixed Period from noisy Signal
    简单而性能良好的非固定周期峰值检测电路
  14. The switch power get fixed signal by PWM control mode and use the strain circuit of wave to supply the smooth current to the workgroup agriculture motor, and to improve the quality of power net.
    通过电路中的脉冲宽度调制方式得到固定周期的控制信号，同时结合电路中的滤波电路，从而使工作组中的农用电机得到平滑的工作电流，进而提高了农用电网中电能的质量。
  15. And the method of parametric spectrum estimation could not realize the analysis of a fixed percentage bandwidth which is necessary for noise signal, the structure vibration signal, etc.
    采用参数谱估计方法，则不能实现等百分比带宽分析。对于噪声和结构振动等信号，需要进行等百分比带宽分析。
  16. Loop detector module which measure travel time using loop detectors fixed in roads and traffic signal timing parameters;
    感应线圈部分通过埋置在道路上的感应线圈以及交通信号参数来计算道路的行程时间；
  17. The former is a time alignment network used to solve the time alignment problem and to extract fixed dimension feature vectors from input speech signal.
    其作用是完成时间规整功能，从输入不等长的语音信号特征矢量序列中提取固定长度的特征矢量；
  18. The results of the experiment show that the vibration amplitude of the stator matches the detected signal under the fixed frequency. And the temperature signal and vibration signal is successfully separated.
    初步实验研究表明：在固定的频率下，检测振动振幅与振动信号特性吻合得很好，而且成功的将振动信号和温度信号分离。
  19. When any logic value in modu-lation signal varies to a large extent, the fixed frequency shift in FSK signal main-tained.
    当调制信号的任一逻辑电平在一个较宽范围内波动时，调制输出的FSK信号能够保持一个固定大小的频偏。
  20. Purpose To evaluate the difference between the fixed monitor unit and fixed signal collecting time methods in measuring of output factors.
    目的研究固定机器量和固定信号采集时间两种不同条件下测得的输出因子差别。
  21. Besides, with I/ Q sub-sampling, digital processing is simplified, but a fixed phase lag between I and Q signal exists after odd/ even separation.
    采用正交欠采样技术能简化数字处理，但奇偶分离后的I、Q两路信号之间存在着固定相位差。
  22. Since the traditional method with fixed signal for time distribution can not meet the requirement of the frequently changing situation, an intelligent traffic signal control is needed to guarantee the favorable passage of vehicles in a single intersection.
    传统固定信号配时控制方案已不能适应交通情况频繁变化的需求，迫切需要一种智能交通信号控制方法来保障车流顺利通过单交叉路口。
  23. In some strong fixed interference circumstances, however, the vortex signal power is not maximal.
    然而，在一些有强固定干扰的场合，涡街信号的功率并不占优。
  24. FM Doppler radio of the fixed distance system transmits frequency modulated continuous wave signal, through the signal processing of the difference frequency signal which is gotten by mixing the transmitted signal and the received signal, the speed and distance information of the target can be valued.
    调频多普勒无线电定距系统发射调频连续波，通过对发射信号与回波信号的差频进行信号处理，从而得出目标的速度信息以及距离信息。
  25. In complex battle field, it is hard to have good performance with fixed signal processing procedure and only the information about target and environment contained in radar echoes. This is the problem that conventional radar faces and needs to be solved for further development.
    在复杂多变的战场环境中，仅利用雷达回波中携带的目标和环境信息及一成不变的信号处理方式很难得到良好的性能，这是传统雷达所面临的问题，也是雷达进一步发展需要解决的问题。
  26. The new binary coded GA multiuser detector maps the constellation points into binary strings with fixed length by adopting the discrete characteristic of signal constellations.
    二进制编码的遗传算法多用户检测算法充分利用了信号星座图的离散特性，将每个星座点映射成固定长度的二进制串，很好地利用了遗传算法和参数编码的隐含并行性。
  27. Although the adaptive signal control is better than the actuated signal control and the fixed signal control generally, the adaptive signal control is not universal key to solve all signal control problem.
    尽管自适应信号控制总体上优于感应信号控制和定时信号控制，但自适应信号控制并不是解决所有信号控制的***。
  28. Then, based on the complexity of frequency hopping communications environment, content proposed a method named posterior compressive sampling, both eliminate the interference of fixed frequency signal and ensures the efficient acquisition of frequency hopping signal.
    第三部分的内容根据跳频信号的复杂通信环境，提出了基于子空间投影技术的后验压缩采样方法，既消除了定频信号的干扰，又实现了跳频信号的高效采集。