电子学报Issue(9)：1703-1709,7.DOI:10.3969/j.issn.0372-2112.2013.09.006
一种新型低复杂度的IIR格型滤波器
A New Class of Low Complexity IIR Lattice Filters
摘要
Abstract
Lattice structure is applied in a wide range of areas due to its excellent finite word length (FWL) properties .The normalized lattice structure is orthogonal ,but for an Nth-order digital filter ,it needs 5 N+1 multipliers .To decrease the computing complexity while keeping the orthogonality unchanged ,the scaled elementary lattice and the corresponding lattice structure were de-rived based on the one-,two-,and three-multiplier lattice ,respectively .The simulation result indicates when the scaled one-multiplier lattice is applied ,the proposed structure has close performance compared with the normalized lattice structure ,but it is more efficient for the real-time signal processing ,for it needs only 2 N+1 multipliers ,much less than that in the normalized lattice structure .关键词
数字滤波器/格型结构/信号功率比/灵敏度函数/有限字长Key words
digital filters/lattice structures/signal power ratio/sensitivity measure/finite word length分类
信息技术与安全科学引用本文复制引用
于爱华,黄朝耿,李刚,徐红,常丽萍..一种新型低复杂度的IIR格型滤波器[J].电子学报,2013,(9):1703-1709,7.基金项目
国家自然科学基金（No ．61273195）；中国博士后基金（No ．2012M511386）；浙江省自然科学基金 （）
