查询词典 tracking ball

Television tracking system is a kind of passive image recognizing and tracking equipment. It can separate the targets form the field, certain their position, estimate their movement trend and realize the real-time tracking of the targets, at complicated background and according to standard television system type.

电视跟踪雷达是一种被动式成像跟踪设备，能在比较复杂的背景下按照标准的电视制式，提取与分离视场内的目标，确定目标位置，估计目标运动趋势，实现对目标的实时跟踪。

Theoretical analysis and simulation shows that the direction driving motor accelerates first, and then decelerates to compensate for the eccentricity when the satellite is deviated from laser center with a certain distance, and reacquires the tracking satellite. The needed time from reacquisition to tracking is affected by motor acceleration, telescope′s detecting precision, and detector′s response and treatment time, and the effect of detector precision on the reacquisition and re-tracking time is greater, as a result, the detector response and treatment time is decreased to the least.

理论分析与仿真结果表明，当卫星偏离光斑中心一定距离时，指向驱动电机先加速后减速，补偿这个偏心，重新捕获跟踪卫星；重新捕获到跟踪所需时间受电机加速度和望远镜探测精度以及探测器响应处理时间影响，其中探测器精度对重新捕获到跟踪所需时间影响较大，探测器响应处理时间要减小到最小；为了使从捕获到跟踪过程中卫星始终在扫描光斑范围内，经纬仪驱动电机的最小角加速度为25.5°/s2。

The effect of outer scale of atomospheric turbulence on tracking precision of tilted tracking system is studied by considering G-tilt power spectrum and the residual variance of tilted tracking system.

中国科学院光电技术研究所，成都610209 [2]中国科学院研究生院，北京100039文章摘要：从G倾斜功率谱和倾斜跟踪残余误差两个方面分析了大气湍流外尺度对倾斜跟踪系统跟踪精度的影响。

Product features: 1, automatic satellite system power automatically begin searching and tracking satellites; 2, Express to capture the use of WRS algorithm for finding stars at Express looking for about 15 seconds to track satellites; 3, receive real-time tracking of satellite signals, high-speed DVB identification code in order to achieve continuous flow of radio and television programs to watch; 4, automatic identification in the frequency and be able to accurately identify the location on the target satellite; 5, scanning electron velocity EBF sweep mode to ensure that the system 100 times per second tracking sweep speed, so that the antenna system to ensure that the system at all under any uninterrupted for watching satellite television programs and allowing the system to greatly increase the service life; 6, self-diagnosis can be their own fault diagnostic equipment, including communication links, sensors, drives, etc..

产品功能：1，自动寻星系统通电后自动开始搜索跟踪卫星；2，快速捕捉利用WRS寻星算法在15 秒左右快速寻找到跟踪卫星；3，接收信号实时跟踪卫星，高速识别DVB 码流以实现连续收看广播电视节目；4，自动识别能够在频率和位置上准确的辨别目标卫星；5，电子波速扫描 EBF扫模式保证了系统每秒100次的跟踪扫速度，使天线系统保证系统在任何条下都能不间断的收看卫星电视节目且使系统的使用寿命大大增加；6，自我诊断可以自行诊断设备故障，包括通信链路、传感器、驱动装置等。

The principle of outside installation mechanism in laser tracking measurement system is introduced and a spherical mechanism method is adopted to design the 2D tracking circumrotatory mechanism according thedevelopment of laser tracking measurement system in global.

作者根据国内外激光跟踪测量系统发展情况，介绍了外置式激光跟踪测距系统的原理，采用球形跟踪伺服装置的设计思想，设计了两维旋转跟踪伺服装置。

In order to tracking with the beacon facular real time and high precisely for fine tracking system in space light communication, a suit of fine tracking control flat based on high frame frequency CMOS camera is designed, image processing and control algorithms are all integrated into the large scale FPGA chip.

针对空间光通信系统对信标光斑实时准确跟踪需求，设计了基于高帧频相机的精跟踪处理控制平台，并将图像处理和控制算法全部集成在大规模现场可编程门阵列芯片内部。

In the key step of this method (the process of contour tracking), the paper puts forward the concept of grid right-correlation flag to determine the initial segment of tracking curve. In the tracking procedure, the trend of subsequent points are determined by the combinatorial values of neighborhood cells, and a method is designed to avoid contours crossing. In order to obtain high-quality contour line, it adopts it adopts the linear interpolative method to show a contour chart of accurate localization and better visual effect.

在该方法的关键过程中，提出栅格右关联标志的概念，并据此确定初始追踪段；追踪过程中依据邻域栅格值的组合特征确定后续点的走向，设计了避免等值线交叉的处理措施；为获得高质量的等值线图形，采用线性插值方法，得到准确定位和视觉效果较好的等值线图形。

An improvement of streamline tracking technique was proposed to overcome its main shortcoming. The tracking direction of planar or sphere tensor is regularized by using energy minimization technique in tracking process.

对Streamline跟踪技术进行改进，采用能量最小化技术对面形或球形张量的跟踪方向进行校正以提高Streamline算法的准确性。

According to the diffraction theory used in DVD system, we propose a new theory to analyze the RF signal and tracking error signal of Super-RENS disk. Then we use simulate the tracking error signal under beam aberration. Finally we use FDTD method to simulate the tracking error signal at defocus.

我们亦根据传统光碟片的绕射理论，提出一新的架构用於分析此近场结构，并用此理论进行射频及偏轨信号的模拟；接著探讨在有像差产生的情形下，其对偏轨信号的影响，最后用有限时域差分法验证在失焦下，偏轨信号的变化。

Against the characteristics of particles' movement in FST, the dissertation utilizes the advantages of three particle tracking methods, puts forward integrated particle tracking strategy, and realizes the particle tracking effetely.

针对脱硫塔中粒子运动的特点将3种方法有机地结合起来，充分利用了三种粒子跟踪算法的优点，实现了粒子轨迹的有效跟踪。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？