基于DSP多通道视频编码终端的设计  

Design and Implement of Multichannel Video Coding Terminal Based on DSP

作　　者：苏曙光[1] 苏月明[2] 刘云生[1] 

机构地区：[1]华中科技大学软件学院,武汉430074 [2]中国航天科工集团二0七所目标与环境光学特性国防科技重点实验室,北京100854

出　　处：《计算机科学》2009年第9期252-254,280,共4页Computer Science

摘　　要：阐述了一个基于DSP的4路实时音视频编码终端的硬件设计方案和实现过程。重点讨论了TMS320DM642主处理芯片和音视频处理系统的设计,另外对存储电路、网络接口、IIC接口和电源等模块也做了深入讨论。最后对硬件做了信号仿真,指出电路设计和PCB布局布线的关键要点。软件测试结果表明视音频主观质量较优,系统硬件工作稳定可靠,具有通用性。The paper proposed a scheme of hardware design of a four-channel realtime video coder. The design of core chips of TMS320DM642 and audio/video chips were focused on. In addition storage, Ethernet, IIC and power source modules were discussed. Finally signal simulation was discussed and some keys of PCB layout and route were proposed. The software test proved the hardware worked well and produced good visual quality of audio/video.

关 键 词：视频编码 TMS320DM642 DSP 电路设计 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]