摘要
针对天文定向算法中数据量大、运算复杂,对硬件速度要求高的实际需要,设计了以TI公司TMS320DM642高速定DSP为核心的嵌入式视频处理系统。它采用TVP5150为视频输入A/D,SAA7105为视频输出D/A,并以CPLD做外围的逻控制,充分发挥了DM642在视频处理上的优势,同时使得系统的适应性和灵活性强,设计调试方便。该硬件平台运算速快、体积小,完全适用于嵌入式天文导航系统。
Aiming at the needs of large data,complex operation and high speed of hardware platform in the arithmetic of astronomy orientation, an embedded video processing system is designed based on TMS320DM642,a high speed fixed-point DSP. The system use TVP5150 as its capture A/D, SAA7105 as its display D/A, and CPLD as the logic control of the periphery. The design can make use of the advantage of DM642 in video processing and enhance the applicability and flexibility of the system. The hardware platform has high calculation speed and small size, and it is suitable for the embedded celestial navigation system.
出处
《微计算机信息》
北大核心
2008年第23期181-183,共3页
Control & Automation
基金
总装探索研究国防基金资助项目(编号不公开)
