Signal Processing - Signal processing with heavy-tailed models
Adaptive IIR notch filters based on new error criteria
Signal Processing
Multi-signal extension of adaptive frequency tracking algorithms
Signal Processing
Tracking analysis of an adaptive notch filter with constrainedpoles and zeros
IEEE Transactions on Signal Processing
An improved lattice-based adaptive IIR notch filter
IEEE Transactions on Signal Processing
Parallel frequency tracking with built-in performance evaluation
Digital Signal Processing
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A modified gradient algorithm is developed for improving the convergence speed of a first-order complex adaptive IIR notch filter, which is used for estimating an unknown frequency of a complex sinusoidal signal embedded in white Gaussian noise. The new cost function using new error criterion is presented and analyzed theoretically. The proposed technique can significantly improve the convergence speed as compared with a complex notch filter using plain gradient algorithm. The computer simulations are conducted to demonstrate the validity of the proposed complex adaptive notch filter.