An intelligent transport system based on Digital Terrestrial Multimedia Broadcast (DTMB) is proposed, and its server system is implemented.

提出一种基于数字电视国标(DTMB)的智能交通导航系统，并实现其服务器部分。

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A new simplified soft-output demapping algorithm for M-QAM is proposed in this paper, and the method is expanded to unsymmetric 2-D QAM demapping such as 32-QAM in DTMB.

提出了一种适用于所有M-QAM软判决解映射的简化算法，并将其扩展到不对称的二维QAM解映射中，如DTMB中的32-QAM。

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In Chinese national standard for Digital Terrestrial Multimedia Broadcasting (DTMB), irregular Quasi Cyclic LDPC (QC - LDPC) code is used as core part of forward error correction coding.

在中国数字电视广播地面传输标准(DTMB)中，使用了非规则准循环ld P C码(QC - LDPC)作为前向纠错编码的核心部分。

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