一种TS over IP网关设计  

TS over IP Gateway Design

作　　者：张玉平[1] 李可为[1] 何英杰[1] 叶圣江[1] 

机构地区：[1]成都电子机械高等专科学校,四川成都611730

出　　处：《电视技术》2012年第11期59-62,共4页Video Engineering

摘　　要：提出一种对现有数字电视前端设备进行IP化改造的方法。该系统以ARM Cortex-M3内核的LM3S9B92为核心,将TS分组以IP格式封装,利用CY7B933和EP1C3T144C8N芯片,实现了TS流的接收及PCR校正。实测结果表明,该方案中的PCR抖动时延远小于500 ns,节目效果好。A DVB front - end equipment IP transformation method is presented. The system is based on the LM3S9B92, and the TS packets are encap- sulated in IP format. The receiving of TS stream and the correction of PCR are implemented by using CYTB933 and EPIC3T44CSN. Experimental results show that the design of PCR jitter is far less than 500 ns, and the performance of program is good.

关 键 词：数字电视前端 IP网关 TS分组 PCR抖动 

分 类 号：TN915[电子电信—通信与信息系统] TN791[电子电信—信息与通信工程]