This dissertation discusses realization and theory of mpeg - 2 transport stream analysis and monitoring . the main contents are as follow : 1 . introduces the standard of mpeg - 2 system layer syntax and etr 290 standard about the three levels of detecting parameters 2 本论文就基于nios的码流分析和监测的理论及实现都作了较深入的探讨,主要内容如下: 1 .根据mpeg - 2系统层语法规范协议,对ts流的包结构以及psi信息之间的关系进行了深入细致的分析,介绍了码流分析的监测标准和规范以及dvb建议评估的参数。
In the paper , after the feasibility achieving integrated simulation environment based on linux was demonstrated , linux os and simulation environment was researched with the purpose of creating the integrated simulation on linux . at first , a kind of architecture was brought forward , and then the arithmetic used in digital or real - time simulation was carried out . at last , the integrated simulation environment named linsim was accomplished on linux , on which digital simulate examination can be completed 本文在论证了基于linux开发一体化仿真环境的必要性、可行性后，首先通过对国内外一体化仿真软件的研究，以及对linux操作系统的编程工具和内核的分析，提出了在linux上实现一体化仿真环境的基本结构；其次通过对编译过程及语法规范的理解，实现了基于linux的仿真程序的编辑、编译和链接；然后在此基础上通过对数值积分方法的研究，实现了linux下的全数字和实时仿真算法，并且解决了linux下仿真结果实时显示和动态模型库建立等技术难题，最终实现了基于linux的一体化仿真环境linsim ，该仿真环境已经可以支持全数字仿真试验。
