摘要
交通管理监视器的视频电路,受通频带限制导致图像轮廓模糊、清晰度下降,通常需要采用双微分视频补偿.以一种具体的双微分视频补偿电路为例,分析了两次微分的补偿过程,用电路理论对元件的取值进行了研究,并采用功能强大的E lectron ics W orkbench软件进行了仿真实验论证.
In the video circuit of traffic monitor, the image outline dims and the visibility declines because of the limitation of the passband, thus twice differential video compensation is needed. With an example of a twice differential video compensation circuit, the twice differential process is analyzed in detail, a deep research of components＇ values in the circuit is taken according to the circuit theory, and finally a simulation process using powerful Electronics Workbench software is made.
出处
《武汉理工大学学报（交通科学与工程版）》
2006年第2期347-349,共3页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国家自然科学基金项目资助(批准号:40751128)
关键词
视频电路
双微分
轮廓补偿
EWB仿真
video circuit
twice differential
outline compensation
EWB simulation
