Variable Filter Design by Second Order Transformation
Tong Ma, Yuanjie Deng, Ying Wei · IEEE Transactions on Circuits & Systems II Express Briefs · 2020
Linear transformation is a typical variable filter design method. In this brief, we give a comprehensive and systematic theory analysis about the 2ndorder transformation, discovering the potential performance of it. A general and complete direction about parameters setting is given, and the mapping relationship is clearly shown. Experiment results show that the performance of variable filters based on second order transformation was obviously improved.