pulse analog modulation 脉冲模拟调制
analog modulation system [计] 模拟调制系统
analog modulation signal 模拟调制信号
analog-intensity modulation 模拟强度调制
analog baseband modulation 模拟基带调制
asynchronous analog pulse modulation 非同步模拟脉冲调制
However, in the process of generalization of new digital HF communication system, the old generation HF channel system based on analog modulation appears gradually the technological limitation.
然而,在新的数字化短波通信体制推广应用过程中,老一代的基于模拟调制的短波信道机逐步显露出技术上的局限性。
参考来源 - 新型数字化短波信道机设计与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
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