还分析了沿航迹干涉SAR中测速精度对基线测量精度的要求。
In addition, the requirements of velocity precision for the baseline precision in the AT-INSAR mode are analyzed too.
根据天幕靶测速原理,该检测与提取方法可以提高系统测速精度。
It is indicated that this method can improve the velocity measurement accuracy of flying projectiles base on skyscreen measuring principles.
基于这个模型分析了临界基线、测速精度,以及动目标检测等性能。
Then we deduce and analyze the performance for Critical Baseline, velocity resolution and moving target detection.
在影响多普勒计程仪测速精度的多种因素中,以声速的影响为最大。
Among the factors which affect the accuracy of Doppler log, the speed of sound is the most important one.
概述了精确获取测速雷达时间零点的重要性,分析了其对测速精度的影响。
This paper briefly introduces the importance of accurately determining time zero of a speed measuring radar, and discusses its effect on the accuracy of speed measuring.
W波段连续波相参多普勒雷达具有测速精度高的优点,广泛应用于多种测速场合。
The W-band coherent Doppler radar has high precision. It is widely used in speed measuring.
试验结果和理论分析表明:(1)散射粒子的特性参数是影响测速精度的重要因素;
The results show:(1) The choice of scattering particle is the main factor of influencing the velocity measurement;
介绍了二维相关测速的原理和实现方法,推导出该方法的二维测速范围和测速精度。
The principle and practical work method of the measurement were analyzed, the range and accuracy of this two-dimensional correlation speed measurement were deduced.
环形线圈车辆检测器的计数精度和测速精度关系到交通流量统计结果的准确性,是计量检定的关键项目。
The precision of count and speed test of inductive loop vehicle detector relates the veracity of traffic flux statistical result, which is verifiable key item.
文中给出系统硬件、软件设计结构和原理图,改善了原有光电测速精度,提高了系统工作稳定性和可靠性。
This paper presents the hardware, software design and structure diagram of the DSP chip which improves the system stability and reliability.
用80C552单片机和光电码盘配合改进的M/T法,检测铸轧辊的执行电机转速可获得大范围内测速精度。
The Improved M/T method with 80C552 and a photo- electricity coder to measure electro-motor' s rotation speed can achieve a large scale of rotation speed measuring precision.
工程实践应用表明,在测角精度比较低而测距、测速精度相对高的情况下,该方法可有效地提高轨道确定的精度。
Applications show that the method effectively increases orbit determination accuracy at low angular measurement accuracy and high ranging and range rate measurement accuracy.
针对目前VCM磁钢片轮廓尺寸的检测方法存在检测速度慢、精度低等问题,设计了基于机器视觉的VCM磁钢检测系统的总体结构。
The structure of inspection system on VCM based on machine vision is designed to meet the problems of dimensional inspection methods on VCM at present such as low speed, low grade precision and so on.
测速机构采用数字速度传感器测量皮带速度,精度高计量准确。
Velocimetry organization adopt digital speed sensor measuring belt speed, High precision measurement accuracy.
计算结果表明,使用经各种误差修正后的测速数据参与初轨计算能有效提高定轨精度。
The result shows that using velocity measuring data after error correction in preliminary orbiting computation can effectively improve the orbit determination precision.
实验测试表明,该设备具有较高的检测精度和检测速度,检测结果满足生产要求。
The results of our experiments show that, this device can get high precision and high speed, and the detection results satisfy the needs of practical production.
测得的结果为弹丸飞行方向上的速度值。该方法与雷达和常规天幕靶测速系统相比,测量精度较高。
Contrasted with the radar and the general sky-screen system, the method presented here has higher precision.
在潮汐河口河工模型试验中采用粒子测速(PIV/PTV)系统测量流场,具有快速、精度高的优点。
The velocity field measurement by use of the particle image velocimetry and particle tracking velocimetry ( PIV/PTV) system in a tidal estuary model test has advantages of high speed and accuracy.
本文在转速采样环节采用霍尔速度传感器作为电机速度采样器件,并且采用了M法和T法混合的方法进行测速,这样在低速和高速时都能保证采样精度。
In the aspect of speed sample, HALL speed sensor is adopt, and combined the m method and t method, so the sample precision can be ensured both in the high speed moment and low speed moment.
结果表明,改进后的测速系统精度可以满足要求,故障率大大降低。
The results show that the improved speed measurement system can meet precision requirement and can decrease fault rate.
为了提高弹丸速度测试的精度和抗干扰能力,提出了一种基于光电直流补偿的激光测速靶系统设计。
In order to improve accuracy of projectile velocity measurement and anti-jamming capability, a system of laser screens for velocity measurement with photoelectric DC compensation was presented.
为了兼顾检测速度和精度的要求,增强兴趣点的可信度,提出了线性搜索和区域搜索可信度增强方法。
For ensuring both detection speed and precision, and improve the credibility of interesting point, this paper presents linear search and area search methods for credibility enhancement.
该测速仪具有硬件电路简单,测速范围、测量精度及分辨力均高于目前转速表等优点。
The tachometer so designed and developed excels in its simple hardware circuit, wide range tachometric survey, high rate accuracy, and high resolution power as compared with conventional tachometers.
该系统具有检测速度快、精度高、非接触检测、闭环控制等特点,完全适用于回转体直径尺寸的在线检测和控制。
The system had many features such as high speed, high accuracy, untouched measuring and closed-loop control. The system is used on-line measuring and control of diameter measure.
分析了测速误差、精度与测点数、外推步长的关系。
The relation between the test accuracy with the number of measure spots and calculation step length was analyzed.
激光多普勒测速以其高精度、使用方便而在速度测试领域得到广泛的应用。
Laser Doppler velocity is widely used in the measurement field of velocity for its high accuracy and easy-used property.
对测速装置的要求是精度高、稳定可靠和检测时间短。
Requirements for the device of testing rotational speed include: high-accuracy, stabilization, credibility, and shorter testing time.
实际工程实例表明,该方法具有预测速度快、精度高、实用性强的特点,是注浆量预测的有效方法。
A practical example shows that it is an effective method with rapid forecasting speed, high precision and strong practicability.
该算法检测速度快、精度高,而且具有旋转不变性,有效的解决了基于直角坐标的检测算法的不足。
This algorithm has many advantages, such as fast detection speed, high accuracy and rotation invariance. It resolves the disadvantage of the detection algorithm based on rectangular coordinates.
该算法检测速度快、精度高,而且具有旋转不变性,有效的解决了基于直角坐标的检测算法的不足。
This algorithm has many advantages, such as fast detection speed, high accuracy and rotation invariance. It resolves the disadvantage of the detection algorithm based on rectangular coordinates.
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