积分时间

线阵CCD光积分时间的外部信号新型控制技术及其应用

An advanced external signal control technology of the CCD integral time and its application

基于ISP技术的线阵CCD光积分时间的主动控制技术

An external signal control technic of CCD integral time based on ISP

积分时间和频率同时可调的线阵CCD驱动

Linear CCD driver with simultaneously tunable integration time and frequency

CCD测光观测积分时间研究

Research for integration time of CCD photometric and observation

基于CPLD的线阵CCD光积分时间的自适应调节

Automatic adjustment of the exposure time of linear CCD based on CPLD

CCD测光观测中积分时间的选取，对测光结果的误差大小有很大影响。

Integration time is important to error of photometrical results in CCD photometric and observation .

基于CPLD的光积分时间可调线阵CCD驱动电路设计

Design of Linear CCD Driving Circuit with Tunable Integration Time Based on the CPLD

积分时间3s；三是生态与经济相结合；

Integrating time 3 s ; integrating of ecology and economy ;

分析了CCD器件输出信号与光积分时间、CCD驱动频率和后续低通滤波器之间的关系。

Relationship of the CCD output signal and optical integration time , and relationship of CCD driving frequency are described .

单周控制三相PFC中积分时间常数的影响

The Effect of Integration Time Constant of One Cycle Controlled Three-Phase Power Factor Correction

PID参数的整定是指选择合适的比例系数、积分时间和微分时间，使得伺服系统工作在最佳状态。

PID parameter tuning refers to choose the right proportional index , integral time and differential time so that the servo system could work under optimal condition .

并在此基础上设计了GPS弱信号捕获系统，其核心为互相关干扰检测、强信号重构、互相关消除算法以及作为辅助和校正的增加相干积分时间算法。

Then the GPS weak signal acquisition system is designed which includes interference detection , reconstruction of strong signals , mitigation algorithm and calibrating algorithm of extending the coherent integration time .

与载波环相似，DLL颤动也与C/N0、噪声带宽以及预检测积分时间紧密相关。

Similar with carrier loop , tremble of DLL was related with C / N0 , BW of Noise and T.

介绍了一种利用可编程逻辑器件（CPLD）实现积分时间和频率同时可调的线阵CCD驱动方法。

This paper presents a linear CCD driver design with a Complicated Programmable Logical Devices ( CPLD ) which makes integration time and frequency tuned simultaneously .

利用CPLD器件实现了CCD驱动时序脉冲的设计，针对不同光强环境设计了利用拨码开关实现对CCD积分时间的修改方法。

The CCD timing-driven impulse is designed by the CPLD device ; the CCD integration time can be modified by the dial switch for the environment of different light intensity .

比较在相同优化PD参数和按不同加权因子整定优化积分时间的控制品质指标并进行脉冲扰动分析。

The control quality indexes under the same optimal PD parameters and the different integral time set by the different weighted factor are compared and the impulse disturbance analyse is given .

电路可以在不改变工作频率并在一定条件下完全由外部事件信号控制CCD光积分时间与信号的转移。

This technology has the strongpoint of controlling the integral time of the CCD by using external signal under the certain condition bus need not to change the frequency of the system .

它采用视频信号控制带有电子快门的CCD摄象机的积分时间以及平面电机自动光圈，实现宽范围全自动调光。

The full automatic light adjustment within a wide range is carried out by the integration time of CCD camera with an electron shutter and planar motor automatic iris controlled by video signal .

分析伺服误差信号表明，采用该技术锁定微型Nd∶YVO4激光频率，其稳定度可达到10-10（1s积分时间）。

The analysing of error signal shows that it is possible to make laser frequency stability up to 10 - 10 at 1 s average time .

同时将穷举法和遗传算法同闭环仿真平台结合起来，进行了参数优化，本论文优化了PID控制中的比例系数和积分时间常数，取得了较好的效果。

And by combining exhaust algorithm and genetic algorithm with the closed-loop simulation system , parameter optimization can be implemented . In this paper , proportion coefficient and integral time constant of PID control are optimized and good performance is achieved .

颗粒的Lagrangian积分时间尺度随颗粒惯性单调增加，颗粒所见流体速度的Lagrangian积分时间尺度保持相对稳定；

The Lagrangian integral time scale of particles monotonically increased as the magnitude of the particle response time increased , while that of the fluid seen by particles remained relatively constant .

最后得到，在PMP中摄像机的积分时间应该为投影仪刷新周期的整数倍才能获得高的测量精度。

In order to obtain high measurement accuracy , the integrating period of camera must be integer times of the refresh period of projector in PMP . 2 .

在现有面阵CCD图像传感器结构基础上，通过增加像敏单元寻址电路、光积分时间脉冲产生电路和光积分时间设定电路，使面阵CCD图像传感器每个像敏单元的光积分时间可以单独设定。

Based on the current array CCD image sensor technology , the integration time for each pixel sensitive unit in the CCD image sensor can be controlled independently by way of adding circuit for pixel sensitive unit addressing and integration pulse generating .

介绍了文献[1]蛋白质构象模拟计算所用的经验力场和势函数，以及在分子动力学模拟过程中，为提高积分时间步长而采用的SHAKE方法。

Force field and potential function for simulation of protein conformation in reference [ 1 ] are introduced in detail . The SHAKE method , which is to increase integral time step during molecular dynamics simulation is also shown .

用一个带有地形项的f平面准地转正压涡度方程，实施5组积分时间长度为72h的试验，研究了中尺度地形对涡旋自组织的影响。

In order to investigate the effect of meso-scale topography on vortex self-organization , five numerical experiments , whose integral time is 72 hours , are performed using a f-plane quasi-geostrophic barotropic vorticity equation model with a topographic term .

改进后采样器的积分时间常数约为4.3d。

The integration time constant of the improved samplers was about 4 3 days .

本文讨论了决定CCD积分时间的各种因素，重点研究了适用于微型飞行器的CCD成像系统的积分时间与像移的关系，并进一步推导了计算像移量的相关数学模型。

The main factors affecting the CCD integration time were analyzed . A study was made on the relationship between the CCD integration time of a micro imaging system used in MAVs and its image smear , and a mathematical model to calculate and analyze the image smear was established .

在积分时间为4毫秒及镜头为F/1条件下，器件噪声等效温差为0.1K。

The noise equivalent temperature difference of 0 . 1 K was obtained with a F / 1 optics and integrated time of 4 ms.

其工作中心频率为90.5GHz，带宽为2GHz，积分时间为200ms时其系统灵敏度达到0.6K，线性度优于0.999。

The operating frequency is 90.5 GHz and the bandwidth is 2 GHz . The sensitivity of the system is 0.6K and the integration time is 200 ms.

采用Fortran和Minis5.0仿真软件的混合编程，对柴油机动态调速过程进行了仿真计算，分别讨论了不同比例放大系数、不同积分时间常数和不同微分时间常数对柴油机调速过程的影响。

Using Fortran and Minis 5.0 simulation software , simulation analysis on dynamic regulating process of governing system for diesel engine is made . The effect on regulating process of diesel engine is discussed by altering coefficients ( proportional coefficients , integral coefficients , differential coefficients ) .