论文部分内容阅读
伴随着经济的发展和人们对电视节目要求的提高,数字电视技术得到了飞速发展,同时也提出了新的技术要求,基带数字码流(TS流)信号贯穿整个数字电视系统。针对广电系统的实际应用需求,设计并实现了一套基于Intel公司的网络处理器IXP465、以太网交换芯片KS8895以及Freescale公司的PPC处理器MPC8309的IP切换系统。测试结果表明,该系统有具有良好的通信速度及稳定性,达到了预期的设计要求。
With the development of economy and people’s increasing demand for television programs, digital television technology has been developed rapidly. Meanwhile, new technical requirements have also been put forward. The baseband digital bit stream (TS stream) signal runs through the entire digital television system. According to the practical application requirements of radio and television system, a set of IP switching system based on Intel Corporation IXP465 network processor, Ethernet switch chip KS8895 and Freescale PPC processor MPC8309 is designed and implemented. The test results show that the system has a good communication speed and stability, to achieve the desired design requirements.