讨论了全息光学头聚焦误差信号检测的基本原理。
The principle of the detection of the focusing error signal in a holographic optic head is dis - cussed.
光斑尺寸法是数字光盘信息存储中的典型聚焦误差探测方法。
Spot size detection method is representative method to obtain a focus error digital optical disk storage system.
分别以动态聚焦模块校正聚焦误差，以网格插值算法软件校正“枕形”畸变。
The focussing error is corrected by means of dynamic focussing module and the "pillow shaped" distortion is corrected with the software of the grid interpolating algorithm.
针对二维振镜存在的聚焦误差问题，根据产生聚焦误差的原理，采用动态聚焦技术补偿聚焦误差。
According to the principle of focusing error for two dimensions laser galvanometer scanning, a dynamic focusing optical model for correcting this error was put forward.
基于自聚焦误差检测和光路可逆原理，分析并实验证明了利用一种多功能全息透镜来测量类镜表面平整度的可行性。
A multifunctional holographic lens is presented based on autofocus error detection and the principle of reversibility of light. Its feasibility of the mirror-like surface is described.
为了处理这个问题，提出了一个新的方法，聚焦变换的基础上鉴别协方差矩阵，以消除噪声，并因此减少聚焦误差。
To deal with the problem, a new method of focusing transformation based on differentiating covariance matrix is proposed to eliminate noise, and hence reduce the focusing error.
自聚焦主要由两个重要步骤组成，即相位误差估计和相位误差校正。
Autofocus generally encompasses two distinct steps, i. e. phase error estimation and phase error compensation.
主要介绍GRIN透镜在红外波段聚焦光斑直径的测量方法及误差分析。
The measurement method and error analysis method of GRIN lens focal spot diameter in IR wavelength are described.
基于射线声学的虚源法，通过具体算例，分析了典型声源声聚焦引起的测量误差。
Here the measurement errors due to acoustic focusing of typical sound sources are analyzed by detailed examples based on the method of image sources in the Ray Theory.
研究了机载合成孔径雷达运动补偿中可以补偿任意阶相位误差的相位梯度自聚焦(pga)算法，提出一种PGA快速算法。
PGA algorithm, which can compensate any-order phase error in airborne SAR motion compensation, is discussed in this article. A fast PGA algorithm is also proposed.
加权相位梯度自聚焦（PWEPGA）算法考虑了距离变化对相位误差的影响，扩展了PGA算法的应用范围。
Phase Weighted Estimation PGA(PWE PGA)is suggested which takes into consideration the range dependent phase error, so the PGA can be used in more fields.
合成孔径声呐成像中，主要通过自聚焦校正剩余相位误差。
In synthetic aperture sonar imaging, the residual phase error is mainly corrected via autofocus.
提出了一种基于高阶统计量分析的相位误差估计算法，用于SAR图像自聚焦。
In this paper, a new method of phase errors estimation based on higher order statistics is proposed for SAR imagery autofocus.
基于最小熵准则的自聚焦rd算法在一般rd算法的基础上引入最小熵准则来补偿由于大斜视角引起的相位误差，改善图像聚焦效果。
RD algorithm based on minimum entropy criteria carries out the correction phase errors caused by high squint Angle via searching error coefficients for improving the imaging focus effect.
从投影显示系统典型的动态聚焦方法与投影管特殊的荧光屏结构以及光学处理等方面对投影显示系统的动态聚焦电压误差进行研究。
Dynamic focus voltage error of projection display system was studied in this article. Parabola dynamic focus method, projection tube shape and optics processing were analyzed.
论文第二章详细分析了各种相位误差的来源及它们对图像产生的影响，对几种现有的自聚焦算法进行了描述，指出实际应用过程中应该注意的问题。
Chapter 2 introduces the sources and influences on images of all kinds of phase errors, analyzes existing some autofocusing algorithms and lays stress on considerations for application.
在激光切割中，激光聚焦头必须实时跟随工件表面的随机误差，使焦点始终落在工件上。
In laser cutting, laser head must trace random errors of workpiece surface so that laser focus is located at workpiece surface all along.
研究了设计参量和制作误差对其聚焦性能的影响。
The system has voltage auto-adjusting functions of optics focusing and CRT's focusing.
对多聚焦图像和多光谱彩色图像分别采用计算图像信息熵和均方根误差、计算图像平均梯度的方法对融合的性能进行评价。
There is explicit characteristic of correspondence reflecting the droplet transfer among the electric, spectral and image information based on time information fusion.
对多聚焦图像和多光谱彩色图像分别采用计算图像信息熵和均方根误差、计算图像平均梯度的方法对融合的性能进行评价。
There is explicit characteristic of correspondence reflecting the droplet transfer among the electric, spectral and image information based on time information fusion.
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