direct-sequence modulation 直接序列调制
spread sequence modulation 扩频调制
orthogonal sequence modulation 正交序列调制
sequence division modulation telemetry [自] 序列分割调制遥测
direct sequence spread spectrum modulation 直接序列扩频调制
pulse-width modulation sequence 脉宽调制序列
sequence step modulation 顺序阶梯调制
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