摘要
本文讨论了实带通信号在二阶非均匀采样下使实带通信号恢复为两倍带宽内的复解析信号，且相位保持不变，实现了Ｉ、Ｑ信道的数字变频器，避免模拟方式的Ｉ、Ｑ信道不平衡问题。
Analytic recovery of real bandpass signal based on second-order sampling is discussed.The sampling rate which is less than two times of bandwidth is employed,while real bandpass singal is shifted to lower frequency without phase distortion,which avoids the unbalanced problem of I、Q channel in analog system
出处
《四川工业学院学报》
1998年第2期14-17,共4页
Journal of Sichuan University of Science and Technology
