摘要
在通信信号和雷达信号处理中 ,通常需要将信号正交分解为两路正交的I、Q信号 ,然后再做进一步的处理 ,而I、Q通道间的增益误差和相位误差会造成镜像干扰 ,影响系统性能。文中分析了I、Q通道的增益误差和正交误差对镜像干扰抑制比的影响 ,用实验验证了采用HSP5 0 0
In communication and radar signal processing, signals are usually decomposed into to two components: in phase( I ) and quadrature phase( Q ) before the farther processing. But any gain or phase imbalance between in phase ( I ) and quadrature phase ( Q ) paths in the system will cause hermitian image and degrade the performance of system. In this paper, the effect of gain and phase imbalance on hermitian image rejection is investigated and the improvement of performance after using HSP50016 is evaluated.
出处
《电波科学学报》
EI
CSCD
2002年第6期625-627,共3页
Chinese Journal of Radio Science
