多种数字调制方式实现的研究

多种数字调制方式实现的研究 A STUDY OF REALIZING MULTI-MODE DIGITAL MODULATIONS 甘良才 Gan Liangcai Yu Jianguo 1 first-author 余建国 1 武汉大学空间物理与电子信息学系 武汉大学空间物理与电子信息学系 Department of Space Physics and Electronic Information,Wuhan University Department of Space Physics and Electronic Information,Wuhan University 本文旨在介绍了一种利用锁相环路与大规模集成电路相结合,产生多种数字调制的电路,且可将方波信号变为模拟正弦信号。实验结果表明:该调制方式输出频率稳定,旁瓣分量小,满足传输要求。 The paper tries to introduce a new circuit which can realizes multi-mode digital modulation using the phase-locked-loop and large scale integration and turns square wave signals into sine wave signals. Experiment shows that the out frequences are very stable,sidelobe compoents are small and are suitable for transmission. 数字调制 锁相环路 集成电路 digital Modulation phase-locked-loop integrated circuit TN74+2.1;TN761.8 国家自然科学基金(61672102) 1992-04-01 2021-04-01 4