Based on the cyclotomic polynomials, this paper describes a family of efficient and practical interpolators for interpolated FIR filters. The family can be applied to bandpass filters as well as lowpass/highpass filters without any multiplications. It also mitigates the inconvenience to select a practical interpolation factor, and gains a further saving in computational complexity required. Several examples are given to demonstrate the effectiveness for reducing the computational complexity required.
雑誌名
IEICE Transactions
巻
E70-E
号
10
ページ
928 - 937
発行年
1987-10
出版者
The Institute of Electronics, Information and Communication Engineers