本文提出了一种新的自适应增量调制（ADM） 话音编码方案——加性混合压扩增量调制（AHDM）。
In this paper, a new adaptive delta modulation (ADM) method, hybrid companding delta modulation with algorithm (AHDM), is proposed for speech coding.
针对心电波形变化的特点，在分析增量调制压缩方法和自适应增量调制压缩方法的基础上，提出了一种心电图数据组合式增量调制压缩方法。
Based on the characteristics of ECG and analysis of delta modulate compression method and adaptive delta modulate compression method, a new data compression method for ECG, I.
设计出了二次调制系统：采用连续可变斜率增量调制（ CV SD）实现模拟话音信号与数字编码的转换，采用二进制相对相移键控（2 DPSK）作为数字调制方式。
A twice modulation is designed:, CVSD was adopted to realize conversion between analog and digital voice signals, 2DPSK was used as the digital modulation mode.
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