Adaptive IIR Band-Pass/Band-Stop Filtering Using High-Order Transfer Function and Frequency Transformation

High-performance variable band-pass/band-stop state-space digital filters using Gramian-preserving frequency transformation

Sufficient excitation and stable reduced-order adaptive IIR filtering

Department of Electrical Engineering Department of Electrical Engineering Virginia Polytechnic Institute and State University University of Newcastle Blacksburg, VA 24061 New South Wales, 2308 Australia n ABSTRACT v(k) = y(k) — z(k) + c.[y(k—i) — z(k—i)I i=l A perturbed error system is developed to de— (4) scribe the parameter and output error behaviors of -. n reduced—order application of adap...

Non-causal adaptive IIR filtering

A procedure to approximate non-causal adaptive IIR filtering is described. Such structures could be useful, for instance, in the equalization of non-minimum phase communication channels. The procedure is based on backward calculations within blocks of samples and we show that for adaptive filtering the overlap-save method is more suitable than the overlap-add method. Moreover, a temporary freez...

Bias-free adaptive IIR filtering

We present a new family of algorithms that solve the bias problem in the equation-error based adaptive in nite impulse response (IIR) ltering. A novel constraint, called the constant-norm constraint, uni es the quadratic constraint and the monic one. By imposing the monic constraint on the mean square error (MSE) optimization, the merits of both constraints are inherited and the shortcomings ar...

Harteneck, Stewart: Adaptive Iir Filtering Using Qr Matrix Decomposition

In this paper an approach to adaptive IIR ltering based on a pseudo-linear regression and applying an iterative QR matrix decomposition is developed. In simulations, the algorithm has shown a high stability and excellent convergence properties. The derivation of the IIR-QR adaptive lter is straightforward and the computational complexity of the algorithm is comparable to the FIR-QR adaptive alg...