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.

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。

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Step three to four isothermal compression, w2 delta u is going to be q2 plus w2.

第三步，到四点的等温压缩，Δu等于q2加。

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