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本文阐述一种数字控制的增量调制(D.C.D.M.)方法,也明了DCDM调制器和解调器的工作原理及其设计方法,详细讨论了语言传输的质量.用这种编译码方法的测试结果与理论分析相当一致.利用40KC取样频率,可以获得高质量的语言传输,有利于采用集成电路工艺.
This article describes a digital control of incremental modulation (DCDM) method, but also to understand the DCDM modulator and demodulator working principle and its design method, discussed in detail the quality of the language transmission with this coding method of the test results and Theoretical analysis is quite consistent.Using 40KC sampling frequency, you can get high-quality language transfer, is conducive to the use of integrated circuit technology.