Phase modulated resolvers can be used to model the relation between the sidereal time right ascension and the hour angle.
工作在调相状态下的旋转变压器可以用其相位模拟恒星时与赤经、时角的关系。
With the shift-phase modulated multiple chopper circuit, the equivalent switch frequency can be improved, so it can be used in large power occasion.
采用移相调制的多重斩波电路,可以提高等效开关频率,因此可应用在中大功率场合。
The shape measuring of a diffuse abject is conducted based on 2-D digital image processing phase modulated fringe pattern acquired by the projection of Ronchi rulings.
对投影光栅方法获得的位相调制空间载波图进行二维数字图象处理,实现了散射物体的三维曲面测量。
The sound signal is Doppler FM modulated based on the analysis of the moving track of the original source, and then phase modulated according to the interaural time difference.
该方法通过对原始声源运动轨迹的分析,对声源信号进行多普勒调频,并根据耳间时间差对双耳信号进行调相。
Contour modulation is a technique in which a phase-modulated signal waveform and amplifier output impedance work together to maintain higher efficiency over a sizable output power back-off.
轮廓调制结合了一种相位调制信号的波形和放大器的输出阻抗,可在某个较大型输出电源关闭后保持更高的效率。
The random binary phase code phasing PD fuze is a novel modulated system of noise.
随机二相码调相PD(脉冲多普勒)引信,是一种较为新颖的噪声调制引信体制。
Modulated reflection method is used in general for measuring phase lengths of waveguide net-work in construction of electron linear accelerators.
通常,利用调制反射法测量高能电子直线加速器波导网络的相长度。
A parallel operation control method based on a modulated phase tracking method was designed for high reliability requirement of uninterrupted power supply used in gun command system.
针对火炮指挥系统供电电源高可靠性要求,设计了一种采用相位调制跟踪法的全数字式电源并联系统。
We propose the quadratic constrained formulas for the design of linear phase cosine modulated paraunitary filter banks given in references .
本文提出了一种线性相位精确重建余弦调制滤波器组的二次型约束设计公式。
In this paper we study linear phase maximally decimated FIR cosine modulated filter banks, in which each filter has linear phase and is obtained by modulating the prototype filter by cosine sequences.
现研究了一种具有线性相位的最大抽取FIR余弦调制滤波器组,该滤波器组中每一个滤波器都具有线性相位,且由原型滤波器经余弦序列调制得到。
In this paper, a PD radar signal is researched, which is modulated by randomly staggered pulse sequence whose phase is also modulated by random binary-phase code.
本文研究了随机脉冲位置调制与脉冲之间随机相位调制相结合的脉冲多卜勒雷达信号。
Two modulated structures are found in presaging time, which are ordered intermetallic phase.
在时效的前期阶段观察到两种长周期调制结构。
Signals with sinusoid modulated phase is the general form of micro-Doppler signals in radar echoes from targets with micro-motions.
正弦调制相位信号是微动目标雷达回波微多普勒信号的一般形式。
Three features parameters derived from the instantaneous amplitude, instantaneous phase, instantaneous frequency and power spectrum of analogue modulated signals are presented in this article.
首先介绍从信号幅度、相位、频率及功率谱等特性中提取的三种特征参数,应用这三种参数采用人工神经网络对模拟调制信号进行了识别。
Two sidebands are filtered into two paths and are modulated by two phase modulators with complementary data.
信号两个边带分成两路分别由两个相位调制器用相反数据进行调制。
Based on the traditional flowmeter , a new type flowmeter is fablicated utilizing the features of the fiber2optic in fluid , in which the amplitude , phase or frequence of the light may be modulated.
利用光纤在流体中光的强度、相位、频率等受流量调制的特性,在传统流量传感器的基础上,可以制得新型的光纤流量传感器。
It can be used to observe phase objects, and the interference fringes can be modulated on the continuously changed phase objects for measurement.
特点是既可用来观察位相物体,也可把干涉条纹调制在位相连续变化的物体上进行测量。
When Fourier transform is used to demodulate the modulated fringe pattern, the phase of deformation is calculated and furthermore the deformation is measured accurately.
利用傅里叶变换法,解调出了变形场的相位,从而实现了物体变形场的精确测量。
When a thin plate is heated by a beam of modulated continuous laser, a temperature wave generates and propagates along the plate with amplitude decay and phase delay.
通过连续激光调制对薄板试样进行局部周期加热,采用红外扫描测温技术记录动态温度分布。
The variation of brightness and chromaticity of output image with modulation depth in phase-modulated colour encoding image is investigated.
本文讨论了位相调制彩色编码输出图象的色度、亮度随调制深度变化的规律。
In this paper, a current control mathematical model is established with fixed switching frequency for three-phase pulse width modulated (PWM) converter.
建立了三相电压型PWM整流器电流控制数学模型,输入电流在静止坐标系下实现了固定开关频率的解耦控制。
The in-pulse feature analysis is made on the signals with single-frequency, and those signals respectively being linearly frequency-modulated, phase coded. The simulation results are given.
对单频信号、线性调频信号、二相编码信号、四相编码信号进行了脉内特征分析,给出了仿真结果。
A method using cubic-spline interpolation to process correlation peaks was proposed to improve the precision of BOC-modulated signal PN code phase measurement.
提出了利用三次样条插值法,处理BOC调制信号相关谱主峰及副峰的数据,以提高相位测量精度的算法。
Pulse compression; Linear frequency modulated signal; Phase encoding signal; Echo signal; ADS;
脉冲压缩;线性调频信号;相位编码信号;目标回波信号;ADS;
These surfaces have a smoothly modulated profile which is amenable to the theoretical model of rough surface scattering. These specimens can also be used as phase screens.
这些样品表面具有连续平滑的起伏轮廓,符合粗糙表面散射研究的理论模型,也可用作相位板。
Signal demodulation of automatic block with audio frequency shift modulated track circuits was implemented with phase-locked loop (PLL) technique and a singe chip microcomputer.
利用锁相环(LL)窄带跟踪特性,与单片机结合,实现自动闭塞系统移频信号解调。
A power converter circuit (3) drives a switching device by the pulse-width modulated wave for converting a direct current into the three phase alternating current.
电力变换器主电路部(3),其根据该脉冲宽度调制波对开关元件进行驱动,将直流电压转换为三相交流电压;
The power density spectrum of an inner-phase-modulated optical fiber resonator is analyzed theoretically and experimentally, which is valid for any source coherence time.
从理论上详细分析了光纤环形腔有内相位调制时的输出光电流功率谱密度函数,该理论对任意相干长度的输入激光光源都是有效的。
Matches the use with it the programmable microcomputer phase-lock frequency modulated transmitter which is the our company produces.
与之配使用的是我公司生产的可编程微电脑锁相调频发射机。
Matches the use with it the programmable microcomputer phase-lock frequency modulated transmitter which is the our company produces.
与之配使用的是我公司生产的可编程微电脑锁相调频发射机。
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