简介了当今流行的JPEG有损压缩技术和相移技术。
The popular lossy-JPEG image compression arithmetic and phase-shifting technology are introduced.
本文提出一种基于数字条纹投影与数字相移技术的三维形面测量系统。
A method based on digital fringe projection and digital phase shifting technique is proposed in this thesis for 3d shape measurement.
提出了一种利用相移技术测定光纤PZT相移控制器相移特性参数的方法。
This paper presents a new way to measure the characteristic parameter of the phase shifting controller made of fiber with PZT by phase shifting.
相移器是相移干涉计量中的关键技术，对测量精度有很大的影响，关系到相移技术的成败。
Phase shifting is the key technique in phase shifting interference metrology and it greatly effects the measuring precision even results in a failure.
在基于格雷码和相移技术进行三维测量的过程中，相移光栅的非正弦性对测量精度有较大的影响。
In 3d sensing based on gray-code and phase shifting, non-sinusoidal phase-shifting gratings influence the precision markedly.
通过相移技术获取调制度值的调制度三维测量法，不可避免地存在相移误差，从而降低测量精度。
Phase shift error is inevitable in the course of getting modulation value of 3-d measurement with phase shifting technology, and then decreases measurement precision.
而在ESSPI的定量测量中应用相移技术，可以使测量精度大为提高，因此被广泛用于无损检测领域。
The phase-shifting method which is used in ESSPI can improve the precision of the measurement greatly. So the phase-shifting method is used in Non Destructive Testing widely.
提出了基于载波组合相移技术的电流型电力有源滤波器，在较低的开关频率下实现了等效的高频载波效果。
With this technique, the effect of equivalent high switching frequency converter has been obtained with low switching frequency converter.
提出一种新的光学轮廓术线性编码轮廓术，它利用周期线性结构光编码三维物面，并辅以相移技术来解调相位。
A new optical profilometry linearly coded profilometry is presented. It USES a periodic linear structure illuminating light to code the surface and the phase shifting technique to decode the phase.
实验以一平面石膏为测量对象，根据测量结果，验证了该方法的正确性和有效性，对采用相移技术的三维测量法具有重要的意义。
Experimental results show the method correctness and validity through having an experiment on testing a gypsum plane. The way is significant for the 3-d measurement with phase shifting technology.
以结构光条纹相位为信息载体，采用相移技术精确地测量结构光条纹成像过程中相位的变化，实现高分辨的光线追迹，得到点列图。
The phase changes in the imaging process can be tested accurately by the phase-shifting technique and then used for ray tracing to get the spot diagram.
讨论了应用模型化测量方法，使用模型平移产生精确相移，使用波形重构技术精确合成周期信号的频率。
The modeling measurement method is discussed, the precise phase moving is produced by using model moving, and the precise frequency is made by using the waveform synthesizing technique.
通过仿真和实验，研究了STS - SVM组合变流器的输出频谱特性，并与常规s VM技术和载波相移spwm技术进行了比较分析。
The output harmonic feature of the multi-modular converters with STS-SVM is researched and analyzed through simulation and experiment, compared with the conventional SVM and CPS-SPWM.
相位恢复去包裹技术是相移干涉中的重要环节。
Unwrapping is an important link to ensure precision phase measuring in phase shifting interference techniques.
级联型多电平变频器控制策略除了采用载波相移PWM技术外，阶梯波算法也是一种比较好的控制策略。
The carrier shifted-phase PWM technique can been used in cascade multilevel inverter, in addition, the step waveform strategy is good strategy, too.
实验表明，镀膜技术可望成为改善DF B激光器单模工作的一种辅助方法。实验结果有助于理解相移对激射特性的作用。
The experiment shows that this technology can hopefully become one of the aided methods to improve single mode probability of DFB laser.
该系统采用了数字相移条纹投影技术，测量具有非接触、全场、精度较高及快速等优点。
The system adopts digital phase-shifting and fringe projection techniques and its measurement has advantages of non-contact, the whole field, higher precision, and quite high speed.
虚拟无线电技术正在不断的蓬勃发展，该文提出了一种基于虚拟无线电思想的二进制差分相移键控信号软件解调算法。
The technology of virtual radio is developing rapidly, a new DPSK signal software demodulation algorithm is proposed based on virtual radio.
本文提出的基于载波相移穴CPS -SPWM雪技术的级联型变流器同时具有CPS - SPWM技术与多电平变流技术的优点，因而有广泛的工程应用前景。
A novel cascade multi-level converter with carrier phase-shifted SPWM (CPS-SPWM) technique is proposed in this paper. This converter has good prospect in engineering due to its perfect performance.
研究了集光栅技术、莫尔技术、相移干涉术为一体的虚光栅移相莫尔条纹法测量量块的原理及关键技术。
The virtual grating phase shifting moire fringe method is studied to measure the parameters of gauge block which combines the techniques on grating, moire, and phase shifting interferometry.
在动态测试领域中，数字散斑干涉技术常用到的相位处理方法有时间平均法和空间载波相移法。
In dynamic measurement field, when using digital speckle pattern interferometry, we always deal phase with time-average method and spatial carrier phase-shifting method.
健壮有效的相移算法是干涉图处理中一个非常关键的技术。
A robust and effective phase shifting algorithm is important to process interferogram.
分别采用双波长法和相移法研究了光弹性条纹的自动分析技术。
The application of two-wavelength method and phase shifting for automatic analysis of fringe patterns resulted from photoelasticity was investigated.
偏移四相相移键控（OQPSK）是一种适用于在限带非线性信道中使用的高效恒包络数字调制技术。
The offset quadrature phase-shift-keyed(OQPSK) is an effective digital constant envelope modulation for band-limited nonlinear channel.
这种技术能承受工作周期和相移的变化，并带来硬件模块化的好处。
This technique tolerates duty? Cycle and phase? Shift variations, and offers hardware modularity.
通过对42V／360A相控阵雷达阵面电源的研制，阐述了相移软开关PWM技术的特点和必须解决的关键问题。
Designing a 42V/360A power supply for phased-array Radar, expatiate characteristic of PS-ZVS-PWM technology and key technical point of solution.
在超快光学瞬态相移的测量中，结合线性啁啾脉冲与频谱干涉技术，可以获得啁啾脉冲相移随频谱的变化规律。
Extracting spectral phase differences between two linear chirped pulse from the spectral interferogram is simulated based on Fourier Transform Spectral Interferometry.
而当我们使用相移补偿技术，使两个速率相匹配后，得到了非常清晰的图像。
But when we use phase shift compensation technique and make the line shift rate of the camera match the rate of the image, we can get very distinct image.
无相移滤波技术引入了分析化学信号处理领域。
The zero phase shifting filter technology was introduced to the field of analytical chemical signal process.
无相移滤波技术引入了分析化学信号处理领域。
The zero phase shifting filter technology was introduced to the field of analytical chemical signal process.
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