摘要
根据数字正交调制理论，推导了多载波信号数字正变调制的算法，提出了一种简单实用的多通道软件无线电发射机数学模型，并给出梳状谱和离散谱信号产生的实例。
Based on digital orthogonal modulation theory, the algorithm of digital orthogonal modulation of multi-carrier signal is proposed in the paper. A practical mathematics model for multi-channel software radio-based transmitter is also presented and some examples of comb spectrum and discrete spectrum occurring are given.
出处
《通信对抗》
2006年第4期31-33,38,共4页
Communication Countermeasures
关键词
多载波信号
数字正变调制
数字上变频
梳状谱
离散谱
multi-carrier signal
digital orthogonal modulation
digital up-converting
comb spectrum
discrete spectrum
