A New Master-Slave Filter-Bank with Series-Parallel Structure for Tracking Center Frequency

주파수 추적을 위한 직병렬 구조의 새로운 주종 필터뱅크

A new filter-bank is proposed in order to track center frequency of narrow band signal. The two banks are connected in series-parallel. The master filter bank which is made of traditional filter bank detects the center frequency roughly. And the performance for tracking center frequency is greatly improved by the slave filter bank which is based on energy-difference estimator. Computer simulations show that it achieves a good tracking accuracy.