As organic fluorescent materials have a broad emission band and poor luminance purity of the luminance color , the color reproduction of image of oled is poor compared with that of other display devices such as crt , lcd etc . the most popular method to improve the chromaticity of a system is the application of appropriate filter 改善色纯度常用的方法就是选通滤光,本文第四章介绍了编写软件模拟滤光片的作用,对oled色纯度进行优化的工作,以达到了改善器件的光学性能的目的,得出了一些有意义的结论。
It is difficult to get the car plate picture . while , at the same time , we use a more powerful light in a limited range of spectrum to head on the car light , basing on the technology of the selecting and use a filter to filter the unnecessary light , we can get the clear car picture 如果，在拍摄车牌图像的同时，用一特定光谱范围内，辐射功率大于车灯辐射功率的光源，向车牌方向照射，利用光谱的选通技术，通过摄像机端的滤光片滤去车灯发出的不需要的辐射，摄像机就可以拍摄到的较为清晰的车牌图像了。
All of above make the miss distance of the missile difficult to estimate in shooting range . in order to solve these problems , a novel method for detecting and tracking small moving point target in image sequence is proposed in this paper , based on combination of the correlation of multi - frames and wave gate techniques . especially , the qualifications to confirm the target and the establishment of the wave gate based on size and characteristic moving parameters of the target are stressed in the paper 针对目前靶场所面临的测量目标小、距离远、目标与背景对比度小,不具有形状信息的实际问题,提出了一种基于多帧相关技术与波门选通技术相结合的快速目标识别与跟踪方法,特别探讨了多帧相关技术中目标确定的理论判据,并综合考虑目标的尺寸因素和目标的运动特征研究了一种新的波门设定方案。
The hardware mainly includes light , image sensor , image collector . the improvement of hardware , which can realize gate control of the 9 cmos by the two - way communication with the computer , and can improve the mtf measurement accuracy of the whole field of view , is introduced in detail 硬件部分主要包括光源、图像传感器、图像采集设备等，并详细介绍了系统硬件的完善部分，即通过与计算机的双向通信，实现了9个cmos的选通控制，从而提高全视场mtf的测量精度。
In this article , a method that designs the high rate multiplexer with fpga technology and vhdl language is described . the multiple digital signals will be multiplexed in one data channel by the multiplexer , while the data is packaged in ccsds standard format . the algorithm that make data channel alternate regularly is also elaborated in the paper 本文阐述了利用先入先出存储器fifo进行异步速率调整，应用vhdl语言和可编程门阵列fpga技术，对多个信号源数据进行数据打包、信道选通调度和多路复接的方法。
