The frame structure in Chinese DTTB standard is introduced, and a channel estimation algorithm with a better performance is given according to the cycle characteristics of the signal frame head.

分析了中国数字电视地面广播标准中的系统帧结构，并根据信号帧头的循环特性，提出了一种性能较好的信道估计算法；

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The fact that there are no operators in the formula of dual frame is of great practical importance for signal processing, and of great help in understanding the concept "frame".

由于这些公式没有包含各种算符，对于实际的信号分析工作者而言具有重要的实用价值，同时对于深入理解框架也十分有益。

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The frame synchronizing signal is detected, stored, and interpolated to insure stable data read back.

框架同步信号检测，存储，并插以确保稳定的数据读回。

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"In our building in the Cybernetics department, we've got quite a number of doorways rigged up so that they pass a radio signal between the door frame, " he says.

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Of course, the longer the time frame the more important and reliable the signal will be.

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