基于最小分辨对比度准则，研究了天空背景下红外点目标的最大探测距离估计方法。
This paper investigates the approach to estimate the maximum detection range of an infrared point_target against sky background based on the minimum resolved contrast(MRC)criteria.
根据激光测距方程，引入了等效散射面积的概念，分别建立了对点目标、扩展目标和线形目标测距的理论模型。
The theoretical models of point target, extended target and line target are established based on the concept of equivalent scattering area and laser ranging equation.
基于零波面理论，利用超声测距原理，介绍了3点定面测量船舶升沉位移的方法，设计了一种新型深海采矿船升沉信号采集系统。
Based on the theory of Zero-wave plane and the theory of Ultrasonic distance-measurement, introduces the ways how to measure the ship heaving signal according to the rule of 3-point forming a plane.
结果表明采用曲线拟合法能使测距绝对误差在3个采样点以内，与传统的反射波起始点确定方法相比有较大优势。
The absolute error is no more than 3 sampling points, so it has more advantages compared with the traditional methods to judge the start point of reflect wave.
首先，通过分析灰度图像中的灰度变化及测距图像中的测距值变化，分别求取各自图像中物体的特征点及特征边；
First, feature points and edges of the candidate planes of the objects in the intensity and range images are acquired by analysing the intensity and range variation.
基于高压输电线路的分布参数模型，使用线路两端电压、电流的正序和负序分量，对高压输电线路两点异相故障提出了一种新的测距算法。
Based on the distributed parameter model for transmission line, a new fault location method for short circuit fault of two points on different phases of the power transmission line is presented.
接着重点研究了激光测距的原理，激光扫描的现状、原理和设计和对点云的处理。
Then, we emphasize the principle of laser telemeter, the actuality, the principle, the design of laser scanning and the processing to cloud of points.
还提出了3点插值算法并将其用于目标距离估计，进一步提高激光雷达的测距精度。
A technique named 3-point interpolation is proposed to enhance the range accuracy further.
微机接触网故障测距装置能在电气化铁路接触网发生各种短路故障后自动进行故障诊断和故障点精确定位。
Feeder fault locator will carry out the automatic fault diagnosis and precise fault loca-ting after different short-circuits faults have occurred in electrified railway feeder.
高压电缆的金属护套交叉互联导致行波在多个波阻抗不连续点产生了复杂的折反射行为，这对高压电缆线路的行波故障测距产生很大的影响。
The reflection and refraction of traveling wave are quite complicated at the sheath-crossing point of high voltage power cable, due to its remarkably noncontinuous surge impedance.
对采用坐标展点器展绘碎部点坐标所测绘的大比例尺地形图的精度进行了系统地分析，并定量地给出了采用不同测距方式展点测图的点位中误差。
The precision of a large scale topographic map is systematically analyzed, which is measured and drawn with the help of coordinate point distributor for the distribution of the detailed points.
理论分析及EMTP仿真表明，这种测距原理不受来自故障线路对端不连续点反射波的影响。
The theory analysis and EMTP simulation show that the presented method is independent on the reflected waves coming from the remote discontinuity on the faulty transmission Line.
本文对光电测距仪进行公路曲线测设的误差大小作了分析，并结合公路曲线测设的允许误差进行分析对比，提出了控制置镜点到测点的距离以达到测设精度要求。
In this paper, the error of light-electric range finder in highway curve survey is analysed. The control distance between two survey station is presented so as to control the precision.
结构光测距技术的主要缺点是无法获取摄像机看不到或光源照不到的点的数据。为此，采用冗余多传感器构成无影视觉坐标测量系统。
The main shortcoming of range finding technique with structural light is that it is unable to obtain the data of points which are sightless by pickup camera or can't be illuminated by light source.
通过运用修正后的运动学模型对车身点实施测量，并与跟踪仪的实测距离数据进行比较。
Car body points were measured by using the modified kinematics model and compared with the distance data of laser tracker.
该算法利用双目测距及基于点对应的运动参数估计原理，求取探测器的姿态和位置信息。
Present a binocular vision-based motion estimation algorithm, this algorithm using binocular measurement method and points-corresponding motion estimation, is an estimate of explorer motion.
最后结合匹配点的位置信息通过计算机视觉测距原理获取探测器和小行星之间的相对位置和相对姿态。
Finally, the relative positions and attitudes between the asteroid and the explorer were obtained by computer vision principle associated with the position of the matching points.
最后结合匹配点的位置信息通过计算机视觉测距原理获取探测器和小行星之间的相对位置和相对姿态。
Finally, the relative positions and attitudes between the asteroid and the explorer were obtained by computer vision principle associated with the position of the matching points.
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