差分脉冲编码调制

运动面积的差分脉冲编码调制方法

Moving area DPCM method

自适应差分脉冲编码调制（ADPCM）采用自适应量化方法和自适应预测方法，对PCM（脉冲编码调制）语音信号进行再压缩，是一种有效的语音信号波形编码压缩方案。

Adaptive Differential Pulse Code Modulation ( ADPCM ) is an effective algorithm of speech coding . It adopts the method of adaptive quantization and adaptive prediction to compress pulse code modulation ( PCM ) signal .

由于背景不变，本文采用DPCM（差分脉冲编码调制）结合DCT变换、RLC编码和哈夫曼编码图像压缩算法，并取得良好的效果。

For the background is unchangeable , this paper adopts DCT commutation with DPCM , RLC coding , and Huffman 's coding arithmetic of image compressing , and gets favorable effect .

又用自适应差分脉冲编码调制（ADPCM），代替RPE－LTP方案中的自适应脉冲编码调制（APCM）对选择的RPE序列进行的量化编码。

The Adaptive Differential Pulse Code Modulation ( ADPCM ) algorithm has been used to replace the Adaptive Pulse Code Modulation ( APCM ) algorithm in the RPE-LTP scheme to quantize the selected RPE sequence .

循环差分脉冲编码调制对称与物理

Circular Difference Pulse Code Modulation Symmetry and Physics

自适应差分脉冲编码调制

Adaptive Differential Pulse Code Modulation

4相差分相移键控系统实验的开发及应用循环差分脉冲编码调制

Development and Application of the 4 Differential Pulse - Code Modulation Experiment Circular Difference Pulse Code Modulation