...信号（如电报信号等），显然它的时间取值是连续的，但它的幅度却只限于有限个数值，这一类信号称为量化信号（quantized signal），如图2.3b所示。以上两类信号都是连续时间信号。
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证明了该方法在所加噪声满足一定条件时，其量化信号的数学期望等于相应的量化输入值。
It is proved that the expected value of a quantized signal value is equal to its corresponding signal value by this means provided some conditions of the noise being added in is satisfied.
所述信号调制方法还包括利用量化器对所述积分器生成的新积分信号进行量化来生成新量化信号的步骤。
The signal modulation method further includes generating a new quantization signal with a quantizer by quantizing the new integrated signal generated by the integrator.
TCQ算法充分利用了卷积码的特性，采用信号空间扩展的方法来增大量化信号的欧式距离，从而达到提高量化性能的目的。
The TCQ algorithm takes advantage of convolution code, and enlarges the Euclidean distances among quantized data by expanding data dimensions.
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