本文研究了超宽带通信中的编码和调制技术。
In this thesis, the coding and modulation techniques in UWB communications are studied.
开发高效的编码、调制以及信号处理技术成为提高无线频率效率的必然手段和当务之急。
To develop highly efficient coding, modulation and signal processing technologies is becoming the most necessary measure to realize these demands.
本文论述了一种基于软件无线电的甚低频低码率语音数字岩层通信机，它采用了QPSK调制和FEC信道编码技术。
This paper deals with a digital speech communicator of very low frequency and low bit digital communication based on software ratio, which USES the technique of QPSK and FEC coding.
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