有许多的传输参数会影响传输流的编码与调变，从而影响后续的解调与解码。

A variety of transmission parameters may affect the encoding and modulation (and thereby affect the subsequent demodulation and decoding) of the transport stream.

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同时变频变幅的TFFP锯齿波扫描信号可以灵活地改变系统的扫描范围，进一步提高了系统的解调速度。

While the alterable frequency and scope sawtooth sweep signal for TFFP can neatly change the scanning range of the system, which is more improved the demodulation speed.

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