本文提出了一种相位干涉法。用来测量表面声波速度的相对变化。
A phase interference method, for measurement of the relative change of surface acoustic wave velocities, is presented.
基于卫星载波相位干涉测量原理，研究了利用北斗双星系统确定车辆航向的相关技术。
Based on interferometry measurement theory of satellite carrier phase, the technology of land vehicle heading determination through Beidou Bi-Satellite System was studied.
值得注意的是在相位干涉法中，只用一块相位模板，就可以调整写入光纤布拉格光栅的波长。
It is noteworthy that the wavelength of the fiber Bragg grating would be tuned via only a phase mask in a phase mask interferometer.
微波鉴相器建立在相位干涉的原理之上，通过相位干涉把相位信息转化成便于处理的幅度信息。
Microwave phase discriminator (MPD) is used to translate the phase information to amplitude information which easy to be processed by the theory of phase interference.
在证明了多基线的相位干涉仪不产生测向模糊的充要条件后，讨论了两种用长基线组合解测向模糊的算法。
After a sufficient and necessary condition of phase interferometer unambiguous direction finding is proved, two methods of ambiguity resolution by combination of long baselines are presented.
在相位干涉仪测向系统中，通常都认为基线倾角对相位的影响是可以通过几何投影的方法得到等效基线来消除的。
In the system of measuring Angle of phase interferometer, it is considered that the impact brought by baseline obliquity on phase can be eliminated by equivalent baseline from geometric projection.
根据传统光学干涉原理研制出的相位调制型光纤传感器，其突出优点是灵敏度高。
The optic fiber sensors of phase modulation type developed by the interference theory in traditional optics are high sensitive.
本文介绍偏振干涉相位细分中应用双光束分光系统的必要性，分光系统的优选原理及结构。
This paper introduces the necessity of double beam splitting system applicating in polarization interference phase subdivision and the optimized principle of this beam splitting system.
利用简单的电路构成实时相位检测器，对干涉信号中的相位信号进行同步检测，最终获得实际振动的振幅频率。
The real time phase detector is constructed with a simple circuits. The amplitude and frequency of the vibrations are measured by synchronously detecting the phases in interference signal.
相位解缠是SAR干涉测量数据处理中的一个关键步骤之一，解缠结果的好坏直接影响最终数字高程模型的精度。
Phase unwrapping is one of the key steps for the processing of InSAR data. The quality of the unwrapping results affects the final DEM directly.
本文应用相位移激光全息干涉法研究板状结构的热应变。
In this paper, the thermal deformation of a plate is measured by Phase shifting laser holography interference.
提出了会聚偏振光干涉法测量波片相位延迟量的新方法。
Put forward a new method of assembling polarization-interference to measure the phase retardation of wave-plate.
分析结果表明，利用三天线构成的双基线机载干涉SAR是改进相位展开过程、提高高程测量精度的有效方法。
The results show that dual-baseline airborne interferometric SAR using three antennas is an efficient scheme to improve phase unwrapping processing and improve height measurement accuracy.
在光栅谱衍射干涉法的基础上，本文提出用色散效应产生的相位体微分干涉条纹，进行实时假彩色编码的原理。
A new principle is proposed to pseudocolor-code the differential interference in the grating-diffraction interferometry with extended white light illumination by using dispersion effect of a prism.
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.
提出了一种基于二维短时傅里叶变换的干涉相位图解缠方法。
A two-dimensional phase unwrapping approach based on two-dimensional windowed Fourier transform (WFT) is proposed.
研究和建立了以几何光学近似光散射理论为基础的激光相位多普勒空间干涉条纹模型。
A theoretical model of laser phase - doppler sizing anemometer based on the geometrical optics approximation of light scattering is studied.
这种多卫星组合可提供沿轨道向的干涉相位信息，从而进行慢速目标的检测。
The combine of the cluster satellites can obtain the phase of the along-track interferometric SAR (AT-InSAR) to measure the slow moving targets.
讨论了合成孔径声纳的干涉相位图降噪问题。
Noise reduction for interferometric phase images in synthetic aperture sonar(SAS) is addressed in this paper.
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.
研究表明干涉场中的相位鞍点以及涡旋点的位置与光束的离轴参数、束腰宽度、相位以及相对振幅有关。
It is shown that the positions of phase saddles and vortices depend on the off-axis parameter, beam width, phase and relative amplitude of beams.
探讨干涉合成孔径雷达(INSAR)中干涉相位图的噪声抑制方法。
The phase noise suppression methods applied on the interferogram of interferometric synthetic aperture radar (INSAR) are studied.
传感器利用注入结电流直接调频的半导体激光(LD)产生外差干涉，从而实现了干涉相位的线性检测。
A heterodyne interference is caused by a frequency modulation of a laser diode (LD) with a ramp injection current, and a linear phase detection is realized.
该方法的主要装置包括一个用于控制刻划机运动的光栅干涉仪和一个相位扫描机构。
The main devices of the method include a grating interferometer, which controls the ruling engine motion, and a phase scanning mechanism.
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.
简要说明了干涉仪合成孔径声纳基本原理和信号处理过程：合成孔径成像、干涉图获取与处理和相位解卷。
InSAS basic principle and signal processing including SAS imaging, interferogram acquisition and processing, phase unwrapping are simply introduced.
相位差放大技术(PDA)是干涉测量领域里一种提高相位分辨率和测量精度的手段。
Phase difference amplification (PDA) was proposed as a means of improving phase resolution and accuracy in interferometric measurement.
在半导体激光正弦相位调制干涉仪中，光源输出光强的变化是测量误差的主要来源。
In sinusoidal phase modulating laser diode interferometer, the main error source is the variation in output light intensity of light source.
在半导体激光正弦相位调制干涉仪中，光源输出光强的变化是测量误差的主要来源。
In sinusoidal phase modulating laser diode interferometer, the main error source is the variation in output light intensity of light source.
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