您现在的位置: 首页> 研究主题> 驱动时序

驱动时序

驱动时序的相关文献在2003年到2022年内共计124篇,主要集中在无线电电子学、电信技术、自动化技术、计算机技术、机械、仪表工业 等领域,其中期刊论文85篇、会议论文8篇、专利文献302103篇;相关期刊55种,包括科学技术与工程、光学精密工程、仪表技术与传感器等; 相关会议8种,包括2014中国平板显示学术会议、中国空间科学学会2013空间光学与机电技术研讨会、2011年亚太青年通信学术会议(APYCC2011)等;驱动时序的相关文献由325位作者贡献,包括李斌康、杨少华、高伟等。

驱动时序—发文量

期刊论文>

论文:85 占比:0.03%

会议论文>

论文:8 占比:0.00%

专利文献>

论文:302103 占比:99.97%

总计:302196篇

驱动时序—发文趋势图

驱动时序

-研究学者

  • 李斌康
  • 杨少华
  • 高伟
  • 任建岳
  • 夏惊涛
  • 宋克非
  • 张佩杰
  • 张星祥
  • 李国宁
  • 李自田
  • 期刊论文
  • 会议论文
  • 专利文献

搜索

排序:

年份

    • 汪文静; 陈智; 周云鹤; 张晨; 刘海洋
    • 摘要: 由于一般单片机的驱动频率不足,难以带动CCD传感器工作,因此需对CCD传感器的驱动脉冲进行正确设计。文中提出一种线性CCD驱动电路的设计方法。该设计采用具有增强型内核的STM32单片机产生CCD的驱动脉冲,同时使用相关电路模块来完成对CCD的驱动,并利用内置的高速A/D转换功能完成数据采集和数据处理工作,从而完成驱动模块软硬件的设计。文中对CCD的结构及其工作原理,以及CCD的驱动脉冲进行介绍,并对系统的总体设计进行说明,最后进行实验测试与验证。结果表明,文中设计的驱动模块可以正常工作并充分发挥CCD的性能,且能够灵活地调节时序,具有一定的实用价值。
    • 麻朋威; 廖平
    • 摘要: 为了实现对加工中心刀具磨损的精密检测,设计了一种基于面阵CCD的刀具磨损精密检测系统.首先,使用激光作为光源,根据坐标转换原理设计了系统结构,利用FPGA产生面阵CCD所需的驱动时序信号;然后,将CCD输出的模拟信号经过信号处理电路转换为二值化数字信号,最后,由FP GA采集发送到上位机中使用LOF算法进行异常点剔除处理.实验测试表明,该系统磨损检测精度可达1μm.该系统具有体积小、精度高,测量速度快,输出信号稳定,抗干扰能力好等特点,可广泛用于刀具磨损检测.
    • 张元贞; 孙晓兵; 骆冬根
    • 摘要: 面阵CCD及线阵CCD不能胜任海洋目标观测的要求,选用具有高信噪比高灵敏度的时间延迟积分CCD(Time delay integration CCD,TDI-CCD)作为探测器并实现其驱动电路.在图像采集过程中,TDI-CCD探测器使用两个读取端口输出.该探测器驱动电路产生TDI-CCD和A/D的驱动时序.CCD的模拟输出信号被A/D采样,转换成可被计算机识别的数字信号.采用FPGA作为主控芯片,产生驱动时序,接收被A/D转换过的数字信号,并发送图像至计算机.利用相关双采样(Correlated double sampling,CDS)技术滤除TDI-CCD模拟输出信号的相关噪声,提高信号的信噪比.现场可编程门阵列(Field programmable gate array,FPGA)代码在ISE14.7下进行仿真,实验表明,研制的TDI-CCD驱动电路能够产生CCD要求的驱动时序.
    • 张学典; 顾佳; 常敏; 张楠楠
    • 摘要: 为保证CCD在实际应用中能稳定高速地运行,首要解决的问题是设计可靠的驱动电路.基于PSOC技术设计了一种优于传统驱动的高移植性驱动系统.该系统主要包括时序产生部分和信号处理部分,首先通过对 TCD1205DG芯片的基本原理进行分析处理,提出一种稳定的驱动时序产生方法;然后基于二阶滤波电路对输出信号优化处理;最后在理论研究基础上,对输出信号进行实验验证.结果表明,所设计的驱动系统符合CCD的工作需求,而且可靠易行.%To ensure CCD's stable and efficient operation in the practical application,the important thing was to design a re-liable drive circuit. The article based on PSOC designed a drive system of high portability,and it was superior to the traditional ways. The system mainly consisted of the timing generation section and signal processing. Firstly, the article analyzed the basic principle of Toshiba TCD1205DG,and put forward a stable driving timing method. Then the output signal was optimized,which was based on the analysis of the second-order filter circuit. Finally, after theoretical research, the experiment was carried out, the experimental results show that the design of the drive system meets the CCD's requirements, and the system is reliable and feasible.
    • 刘文浩; 董峰
    • 摘要: 为了验证二类超晶格红外探测器的性能,设计了探测器的驱动电路.因红外探测器的灵敏度高,设计了低噪声电源偏置电路,优化了电路板的布局.结合320×256长波红外焦平面组件特点设计的驱动电路为探测器组件提供电源与偏置电压、时序与控制信号.实验结果表明,该驱动电路能基本满足二类超晶格红外成像系统低噪声、高精度的要求.
    • 廖平; 任成; 杨小雨
    • 摘要: 为了实现对微小位移的高精度非接触测量,设计了一种基于线阵CCD的高精度位移传感器前端模块.运用激光三角测量法设计了光学镜头,利用FPGA产生线阵CCD所需的驱动时序,CCD输出的一维视频信号经过前置电路处理后得到稳定的模拟信号,供数字电路进行处理.系统具有结构简单、体积小、输出信号稳定、分辨率高、测量精度高等特点.实验测试表明,该传感器前端模块输出模拟信号稳定,干扰小,计算得到最大量程为±15 mm,精度可达到20μm,能广泛应用于微小位移的精密测量.%In order to achieve the high-precision non-contact measurement for tiny displacement, a high-precision displacement sensor front-end module is designed based on linear array CCD. An optical lens is designed using the principle of laser triangulation, and the system uses the FPGA to generate the drive timing required for the linear array CCD. The one-dimensional video signal output by CCD is handled to obtain a stable analog signal through the front circuit, and the signal is available for digital circuitry. The system has the characteristics of simple structure,small volume, stable output signal, high resolution and high precision. Experimental tests show that the sensor front-end module outputs are stable with small interference analog signal after calculation, the maximum range is ±15 mm, and the accuracy can reach 20 μm. The system can be widely used in the precise measurement of tiny displacement.
    • 杨少华; 李斌康; 郭明安; 夏惊涛; 罗通顶; 严明
    • 摘要: 论述了基于一种1024×1024像素EMCCD图像传感器CCD201的高性能分离式远程成像系统设计方法.采用光纤通信技术,系统分为成像端与控制端,使系统可用于远程监测场合.利用CPLD器件产生CCD逻辑时序及视频同步处理控制时序,采用集成器件与分立器件相结合的方式实现EMCCD垂直驱动时序,获得视频信号;使用带有CDS功能的16位模数转换器对CCD视频信号进行数字化;数字化图像经由光纤发送到远程控制采集端.采用全双工通信,实现电子增益、放大倍数、温度等参数的远程控制.文中详细介绍了驱动电路、视频处理电路、数据远程交互单元与控制采集单元等关键组成部分的技术实现方法.设计的成像系统采用USB方式进行数据实时采集,能够连续获取16位数字图像数据,光动态范围大于70 dB,增益倍数最高能够大于0.1e-/ADU,控温精度达到±0.5°C.设计方法可应用于类似CCD成像系统的设计中,并使系统能够在微光成像及辐射场诊断中应用.%A design method of high performance distributed remote image system around a back illuminated 1024×1024 pix-els EMCCD image sensor was proposed.Adopting optical fiber communication technology,the system was divided into the imaging unit and control unit.The system can be used in remote monitoring fields.A CPLD was adopted to generate the CCD driver timing and video processing timing.The integrated device and diacrete device were combined to realize EMCCD perpendicular drive,and the video signal was acqired.Adopting a CCD analog front-end chip with CDS function,the CCD video signal was sampled and digitized into 16bits digital image data.The image data was transmitted to a USB data acquire card via fibers cable.With full-du-plex communication,the remote control of EM gain,temperature and other parameters is achieved.The design method of driver cir-cuit,video processing circuit,data communication circuit and system control unit was introduced.The image system can acquire 16 bits digital image data simultaneously via a USB port.Experimental results show that the optical dynamic range can exceed 70 dB, and the remote programmable control electron multiplication can operate at the gain more than 0.1e-/ADU.It can keep the setting temperature value in the scope of the error(±0.5°C).The design is used in the remote EMCCD imaging system which can be ap-plied in the low light level imaging area and radiation diagnosis field.
    • 燕玮
    • 摘要: By analyzing the driving sequential relationship of colorized liner CCD-TCD2252D, a design method of driving circuit based on VHDL language and CPLD is presented as well as the simulated and the practical results of the driving circuit, adopting QuartusII9.0 to make simulation analysis to its driving sequence. The results indicate that the design is feasible and precise. Moreover, they prove that the designed circuit can meet the working requirement of CCD.%本文描述了彩色线阵CCD-TCD2252D驱动电路的时序关系,介绍了一种基于CPLD和VHDL的CCD驱动时序电路设计方法。采用QuartusII9.0对所设计的驱动时序进行仿真,给出了驱动电路的设计结果和时序仿真图,以及实际波形图。实验验证了这种时序电路的可行性,满足CCD的驱动时序要求。
    • 任航
    • 摘要: 目前基于TDI 方式的电子像移补偿方法中曝光期间电荷包以行为步长进行转移,使电荷包移动和像移之间存在较大的非同步效应,降低了补偿效果。为了提高像移补偿效果,首先分析了目前基于TDI 方式的电子像移补偿方法中电荷包移动的离散性对补偿效果的影响,提出了一种改进的电子像移补偿方法,从而可以大大减小电荷包和像移之间存在的非同步效应,对比两种方法调制度,从理论上证明了其对补偿效果的提高作用。给出了改进式的电子式像移补偿方法的驱动时序图,通过室内模拟不同像移补偿实验进行了两种方法的验证,分别比较采用两种像移补偿方法图像的清晰度。结果表明,改进式电子像移补偿法图像调制度平均值47/96大于传统像移补偿法图像调制度平均值1/3,改进式像移补偿法图像清晰度平均值为0.5502大于传统像移补偿法图像清晰度平均值0.4753。可以看出,改进式的像移补偿方法相对于传统TDI像移补偿方法,效果明显改善。%Currently in the electronic image motion compensation method based on TDI, charge packets were transferred to conduct step during the exposure, which made the electric purse move and there is a large non-synchronized effect between the image motion. This reduced the compensation effect. In order to increase the compensation effect, effects of the charge packets discretion on the compensation effect in the image motion compensation method based on TDI was analyzed, and an improved electronic image motion compensation method was proposed, which reduced greatly the asynchronous effect between the electric purse and image motion. The modulation of the two methods were compared, which theoretically proved the enhancing role of the compensation effect. The drive timing chart of the improved type of electronic image motion compensation method was advanced. The two methods were verified by imitatingdifferent image motion compensation experiment indoor.The image modulation mean of improved electronic image motion compensation method is 47/96, more than the traditional image motion compensation method which is 1/3. The image sharpness of improved electronic image motion compensation method which is 0.550 2, more than traditional image motion compensation method which is 0.475 3. It was shown that the improved electronic image motion compensation method is better than traditional image motion compensation method.
  • 查看更多

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号