Other applications(其他应用程序) Modulation and channel coding(调制和信道编码) Next generation mobile communications(下一代移动通信) ..
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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.
信道编码采用了典型的内外层编码技术和QAM调制技术。
Channel coding USES the classic outer, inner coding structure and QAM.
介绍DAB发射机系统的基带部分即COFDM信道编码和COFDM调制的设计方法，对相关过程做了阐述。
The article introduced the design method of the baseband which is made up of COFDM channel coder and COFDM modulator of DAB transmitter.
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