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传送汉字信息的代码制图文电视系统对信息保护提出了较高的要求,这是代码制图文电视开发中的一大难点。本文通过对图文电视信道特性的分析、探讨,比较了若干种可适用于我国代码制图文电视的纠错码方案,並着重分析了BCH码用于我国代码制图文电视的可能性及编译码过程,给出了计算机模拟的结果。
Transmission of Chinese characters code The text-to-teletext system puts forward higher requirements on information protection, which is a major difficulty in the development of code-graphic teletext. In this paper, through the analysis of the channel characteristics of teletext, this paper discusses and compares several kinds of error correction codes that are applicable to our country’s teletext, and analyzes the possibility of using BCH codes for our country’s teletext. Compiled code process, gives the result of computer simulation.