术语 | differential PCM |
释义 | differential PCM 差分脉码调制 In data communications, a version of pulse code modulation in which the difference in value between a sample and the previous sample is encoded. Because fewer bits are required for transmission than under PCM, this technique is used in satellite communications. 在数据通信中的一种脉码调制技术,其中采样与前一采样之间的差值被编码。由于在差分 脉码调制下传输所需的位数较少,这种技术被用于卫星通信中。 |
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