摘要
本文讨论了如何获得三维线性相位的递归数字滤波器和相应的三维数字信息处理的应用。提出了二十种线性相位的三维递归数字滤波模式和对应的1280种不同的线性相位的递归数字滤波器转移函数的表达式。以其中的串联型结构为主要线索,进行了详细论述。本文给出的这些三维滤波系统具有简单方便,效率高,性能好的优点。缺点是:在进行时实处理时,需要一定的时延。
This paper presents the 3-D recursive digital filters with linearphase and discusses the appltication to 3-D digital signal processing. Twenty-kinds of 3-D recursive digital linear-phase filtering patterns and corresponding1280 different linear-phase expressions of transfer function are proposed.Amongthese filter patterns, the cascade realization forms are discussed in detail. Theadvantages of above systems are of simplicity, high efficiency and better pro-perty,but the time delay is necessary when they arc used in real time sys tem.
出处
《信号处理》
CSCD
北大核心
1989年第3期150-157,共8页
Journal of Signal Processing
