论文重点研究了DVB - H系统中各个信道编码，包括伪随机码，RS码，压缩卷积码和内外交织的编解码算法。

Then it researches the different kinds of channel codec in DVB-H system, including pseudo random code, RS code, punctured convolutional code and interleaving.

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差错控制可以在信源编码和信道编码的各个环节进行，如：预测、变换、量化、可变长编码、比特流结构、复用以及解码等。

Error control can be done in any step such as prediction, transform, quantization, VLC, bitstream syntax structure, channel coding, decoding and etc.

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