Traditionally, phase detection in DSLRs has been conducted by a dedicated AF sensor.
传统上，数码单反相机使用一个单独的对焦感应器进行相位侦测。
This article introduces a technology of time amplifier based on frequency converter. It can be used for phase detection of sine period signal or determination of time delay.
本文介绍一种基于频率变换的时间放大技术，可用于正弦周期信号的相位精确测量或延迟时间测量。
FFT phase detection technique was applied to analyze SMI signal.
用快速傅立叶变换相位探测技术(FFT)分析自混合干涉信号。
Used lock-in amplifier SR844 for hardware phase detection and compared with software detection.
利用锁相放大器SR844对产生的信号进行模拟鉴相，并同软件鉴相结果比较分析；
In a multi, beam bathymetry system, phase detection is a key for achieving super, wide coverage.
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。
The frequency and phase detection module is very easy to realize by programmable digital devices.
同时，其鉴频鉴相算法表达式简单，易于用可编程数字器件实现。
A new method which determines the complex refractive index of absorbing medium with SPR phase detection is proposed.
提出了利用SPR相位差法测量吸收介质复折射率的方法。
Transverse Zeeman laser is the ideal light source of phase detection in biomolecular interaction based on SPR principle.
横向塞曼激光器是基于SPR原理的生物分子相互作用相位检测的理想光源。
The AFC system consists of three major sections: (1) phase detection system, (2) signal process, and (3) regulating system.
AFC系统包括三个主要部分：(1)鉴相系统，(2)信号处理，(3)调节系统。
Sequentially it gives a simple and effective method for accurate phase detection of the segmented mirrors of a huge combined mirror.
结果表明，该方法可有效提取出相位信息，从而为分立表面的大型光学镜面各单元的精确定相提供了一种简单有效的方法。
The property of digital filters for spatial phase detection significantly influences the accuracy and the speed of phase demodulation.
在空间载波条纹位相检测中，滤波函数的选择对解调相位的精度和速度起着决定性的作用。
The phase detection and curve-fitting techniques have been used in processing the interferogram, and sub-pixel measuring error has been obtained.
在干涉图的处理中，采用了相位检测和曲线拟合技术，得到了亚象素的测量精度。
The phase signal of the surface profile is detected from the sinusoidal phase-modulating interference signal using a real-time phase detection circuit.
利用实时相位检测电路，从正弦相位调制干涉信号中解出被测量物体表面形貌的相位。
AIM: to realize digital phase detection methods in brain magnetic induction tomography (MIT) system and to find a phase detection method with high accuracy.
目的：为实现用于脑磁感应成像系统中的数字鉴相方法，寻求一种高精度的相位检测手段。
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.
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 novel phase detection algorithm that does not need complete period sampling, phase-locked loops or complex electrocircuit hardware was presented in this paper.
本文提出了一种无需整周期采样、无需锁相环和复杂电路硬件的相位检测算法。
Using the optical chopper to modulate the detected light to make it related to the reference squarewave signal is a common method of locking phase detection of weak signals.
其中利用光学斩光器对被测光进行调制使其与方波参考信号相关是对微弱光信号进行锁相检测的一种常用方法。
In this paper, principle of signal and data processing of precision phase detection system is introduced. Hardware and software principle and system work procedure is also specified.
本文介绍了精密相位检测系统的信号和数据处理工作原理，并对该系统的硬件、软件原理和系统工作流程均作了阐述。
The paper details the USES of phase detection discriminator in radar receiver, describes the theoretical analysis and circuit design, and gives out the practical circuit and test requirements.
详细分析雷达接收机中鉴频器的作用，进行理论分析和电路设计，并给出具体电路和调试要领。
A novel fundamental frequency and initial phase detection method based on DSP is proposed, which can be used to get synchronous fundamental frequency voltage or current signals of power system.
提出了一种基于数字信号处理器的基波相位和频率校正检测方法，可用于电力系统中电压或电流基波分量同步信号的获取。
Phase detection of projected grating is an effective method which can be used to measure the shape of a 3 D object.
投影栅相位法是检测三维曲面形体几何尺寸的较为有效的光学手段。
This paper gives a computer simulation for chaos phenomena of sampling phase-detection frequency synthesizer.
对锯齿形取样鉴相频率合成器中的混沌现象进行了计算机模拟。
This paper gives a computer simulation for chaos phenomena of sampling phase-detection frequency synthesizer.
对锯齿形取样鉴相频率合成器中的混沌现象进行了计算机模拟。
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