本文详细介绍了四进制pwm光纤通信系统相位抖动的分析方法。
This paper describes in detail the method to analyze the Phase jitter in the four-level PWM fibre optic communication systems.
基于雷达回波信号的PGA算法是在时域估计和校正系统相位误差的一种方法，算法较简单。
PGA algorithm based on radar echo signal is one method of estimating and correcting phase error in time domain, and its algorithm is simple to use.
位置回路采用PD控制算法，以增加系统相位裕度，减弱系统振荡，保证控制系统具有良好的动态特性。
The position loop use the PD control algorithm, to increase the system's phase margin, reduce the system's oscillation and ensure that the control system has good dynamic characteristics.
在大功率晶体管逆变器——电动机驱动系统中，它不但可用来对电动机电流的波形、相位、幅值和频率进行精细控制，而且能快速地检测出故障电流。
In a drive system of power transistor inverter-motor, not only can it be used in fine control of motor current waveform, phase, amplitude and frequency, but can also be used to sense, fault current.
在某相位编码毫米波雷达系统中，要求很高的目标速度测量精度，因而目标多普勒频率测量电路的设计比较重要。
The design of target doppler frequency measurement circuit is very important in phase coded MMW radar system because of the high measurement precision requirement of target speed.
复值小波变换能准确分辨出信号中所包含的幅值信息和相位信息，因而，适用于电力系统的故障信号的检测。
Because complex wavelet transforms can exactly identify amplitude and phase information in signal to be dealt with, they are suitable for detection of fault signals in power system.
在脉冲相位键控(PPK)再入遥测系统中，除了传输常规遥测信号外，还要传输特种遥测信号，即单次宽脉冲信号。
Telemetry signals, which are not only convention but also a special type-single wide-pulse ones, are transmitted by the pulse Phase Key (PPK) Reent rant Telemetry system.
在典型的通信系统中，调制过程是数字信号加载在载波的幅度值、载波的频率或者载波的相位上。
In the model communications system, the modulation process also is loaded the digital signal in the carrier scope value, the carrier frequency or on the carrier phase.
在某相位编码毫米波雷达系统中，由于对目标速度测量精度的要求很高，因此目标多普勒频率测量电路的设计也具有比较重要的地位。
The design of target Doppler frequency measurement circuit is very important in phase-coded MMW radar system because of the high measurement precision requirement of target speed.
FIR数字滤波器以其良好的线性相位特性被广泛使用于现代电子系统中。
In the modern electrical system, FIR digital filter is widely favorable for many applications due to its well linear phase characteristics.
涡流检测信号中的相位信息能反映检测系统的某些特性，讨论用数字相关法提取相位特征信息。
Digital correlation method was used to extract phase information as the phase information of eddy current testing signals could reflect the characteristics of detecting system.
实验表明这样的系统工作稳定可靠，与偏振编码一样，相位编码也可用于自由空间的量子密钥分配。
The set up is stable and secure and it is proved that the phase can be used as coding in the free space QKD just like the polarization.
传统的相位差测量系统，因其工作的频段窄，测量精度低，已不能满足现代相控阵技术的要求。
With its narrow operating frequency scope and low measuring precision, traditional phase difference measuring system can 't satisfy the requirement of modern phase array technology.
为了解决这个问题，查莱特完善了一个使用光脉冲偏振和相位的系统，而不是它的强度，以此来记录电码。
To solve the problem, Charlet perfected a system that uses the polarization and phase of a pulse of light, rather than its intensity, to encode data.
特别是线性系统，相位响应有其严格的定义和意义。
Its phase response has strict definition and meaning especially for linear system.
本文提出了采用单片机和数字滤波技术对一种港口双曲线无线电导航系统的相位信号进行滤波处理和巷识别的方案。
Scheme is proposed of using a computer on sline and digital filtering technique to perform digital filtering and lane identification of the phase signals of a port radio navigation system.
与一般干涉仪相比该系统也因相位压缩而使工作的线性范围扩大了220倍。
Compared with common interferometers, the linearity range of this system was enlarged by 220 times for phase compress.
例如，它是常见的仍发现在电力基础设施UPS系统使用诸如相位控制scr和湿电池的成熟技术。
For example, it is common to still find UPS systems in electricity infrastructure using mature technologies such as Phase Control SCR and wet cell batteries.
多波束测深系统中，相位检测法是实现超宽覆盖测量的关键技术之一。
In a multi, beam bathymetry system, phase detection is a key for achieving super, wide coverage.
讨论了单输入单输出非线性最小相位系统的动态输出反馈镇定。
The paper discusses dynamic output feedback stabilization of minimum phase nonlinear systems with single input and single output.
将制作的锁相放大器应用在了利用声波的相位差定位的系统中。
Then the LIA is used in a system which finds out the location of a sound source.
通过镜像映射将非稳定过程转换成最小相位系统，然后用闭环增益成形算法求解鲁棒控制器。
An unstable process is transformed into a minimum-phase system through mirror-injection, then solve the robust controller using closed loop gain shaping algorithm.
并针对非最小相位系统，提出了一般情况下控制规则基的设计原则。
The design principles of the control rule base under common conditions for non-minimum phase systems is proposed.
论述了由多片单片机构成的波控系统，因为波控系统的相位计算和控制是由软件实现的，所以这种波控系统具有简单、灵活的特点。
A beam steering system consisting of multiple single chip processors is described. It is simple and flexible because its phase calculation and control is implemented by software.
相位信息是电力系统的一个重要特征，正交或双正交的复小波是实时提取电力系统中相位信息的有力手段。
Phase information is one of emphasis characters in the power system orthogonal or biorthogonal complex wavelet is strong means to extract phase information in the power system in time.
实验结果表明，当伺服放大器增益和输入信号的幅值较大时都有可能促成系统的相位突变。
The experiment results show that phase phenomena are probably caused while the servo amplifier gain and the amplitude of input signal increase to some extent.
为同时抑制时滞及非最小相位系统的超、负调和加快系统响应，本文提出一种基于模糊推理的智能内模控制系统。
Aiming to decrease overshoot, undershoot and settling time of non-minimum phase system with time delay, this paper proposes an intelligent IMC control system based on fuzzy inference.
电力系统基波幅值、相位、频率扰动是最基本的电能质量扰动。
Amplitude deviation, frequency deviation and phase deviation are basic power quality disturbances.
电力系统基波幅值、相位、频率扰动是最基本的电能质量扰动。
Amplitude deviation, frequency deviation and phase deviation are basic power quality disturbances.
应用推荐