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无人机信息系统字符叠加模块设计
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为了获得二维图像中目标空间方位信息的同时，保证图像帧信息同步，采用了一种基于MB90092芯片的字符叠加方法。分析了视频字符叠加原理，给出了字符叠加电路实现方法，设计了叠加系统主程序流程及中断子程序流程，研究了各子模块的功能及工作原理。该叠加模块应用于某型无人机信息系统，叠加系统工作正常，叠加图像质量较好，能够满足系统获取相关信息的需求。
Abstract:
In order to obtain the target orientation information in 2D image and ensure synchronization of frame information， a character addition method based on MB90092 is adopted. This paper analyzed video-character addition principle， presented the method which could realize character addition circuit， designed its main program flow and interrupt subprogram flow， and had a research on the function and work principle of submodules. The addition module has applied to certain UAV information system， and the result shows that the system works well， quality of the addition image is preferable， and it can get relevant information in need.
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2011-04-29
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