数字调制解调器 meaning in English

digital modems
dm digital modem

A study on the decoding algorithm of the v . 90 digital modem
90数字调制解调器解码算法的研究
Timing jitter in satellite data modem
卫星数字调制解调器中的时钟抖动
Abstract : ： a technique for carriersynchronization of a digital modem is studied and the results of computer simulations are given . through comp arison of twokinds of phase estimator systems , it is shown that the combination of phase signal decision process and signal decoding processwill improve system performances obviously
文摘:分析了数字调制解调器载波同步技术，提供了计算机模拟测试的结果，并通过对两种不同鉴相器系统的性能比较，说明了把信号相位判断过程与信号解码过程结合，可使系统的性能得到明显改善。