A printer model and human visual model based method on tone-dependent error diffusion (TDED) is proposed.

提出了一种基于打印机模型和视觉模型的阶调误差扩散算法。

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They should not be relied upon to provide an error free method of relaying tone signalling to other decoders, such as a telephone exchange DTMF detector, for example.

它不应该被依赖用做提供一种无错的传送方法，传送双音频信号到另一解码器。例如：电话交换机的DTMF侦察器。

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The phase error estimation part utilize one pilot tone to track the phase error and uses the estimation after compensation structure to improve precision.

残留相偏估计部分采用利用导频进行相偏跟踪的方法，并采用补偿后估计的结构来增加估计的精度。

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Bath's cause was not helped by some hapless goalkicking, with Ryan Davis, who took on the kicking duties in the absence of Butch James and Olly Barkley, setting the tone for an error-strewn display with two early penalty misses.

BBC: Gloucester 24-5 Bath

Above all, the candidates must avoid blundering, making some stray error of fact or tone that makes them appear ineligible for high office.

BBC: Do the US presidential debates matter?