Title :
Comments on "Performance analysis of signed self-orthogonalizing adaptive lattice filter"
Author :
Li, Gang ; Xie, Li Hua
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
For original paper see ibid., vol. 47, no. 10, p. 1227-1237 (2000 ). In Theorem 1 of the aforementioned paper, it is claimed that the correlation matrix of the lattice backward predictor error vector is always better conditioned than that of the wide sense stationary input signal. The proof of the result, unfortunately, is based on an incorrect reasoning. In this comment, we shall give a rigorous proof of the result for the optimal lattice filters.
Keywords :
adaptive filters; convergence; eigenvalues and eigenfunctions; filtering theory; lattice filters; matrix algebra; prediction theory; adaptive filtering; adaptive lattice filter; convergence analysis; correlation matrix; eigenvalue spread; lattice backward predictor error vector; optimal lattice filters; performance analysis; signed self-orthogonalizing filter; wide sense stationary input signal; Adaptive algorithm; Adaptive filters; Adaptive signal processing; Circuits; Convergence; Eigenvalues and eigenfunctions; Filtering; Lattices; Performance analysis; Reflection;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
