Digital Orthogonal Transformation Based on Multiphase Filtering
Yun Chen · Journal of Yangtze University · 2008
This paper investigates the principle of the digital orthogonal transformation based on multiphase filtering,and proved that the interpolation delay filters could be replaced with branch filters from a multiphase filter according to the theory of multi-sampling rate signal processing.Simulation results demonstrate that the magnitude and phase response of the designed interpolation delay filters can meet the demands.The counteract design multiphase filter bank carried out a reality is used to successful decomposite the same phase and orthogonal components and corrected when they postpone,proving should can be carried out theoretically.