The structure of third generation ALE physical layer burst waveform is briefly introduced, and the scheme of combining DS8PSK and Viterbi convolutional encoding is put forward.
简要介绍了第三代自动链路建立协议的物理层突发波形的结构组成，并提出了DS 8psk相结合并采用卷积码编码的方案。
The third layer has a very thin, dense structure that increases water resistance.
第三层是层非常薄、紧密的结构以增强防水。
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