Title :
2-D adaptive line enhancer using a new lattice structure
Author :
Watanabe, Noritaka ; Nakachi, Takayuki ; Hamada, Nozomu
Author_Institution :
Fac. of Sci. & Technol., Keio Univ., Yokohama, Japan
Abstract :
In this paper, we propose a two-dimensional (2-D) adaptive line enhancer (ALE) using a new lattice structure. The new lattice filter implementation of an ALE has superior convergence because of its orthogonality of backward prediction error fields. We discuss a method of determining the so-called decorrelation parameters so that periodic signal is strongly emphasized than the colored noise. Simulations are demonstrated to examine the validity of the proposed theory
Keywords :
adaptive filters; lattice filters; backward prediction error field; colored noise; convergence; decorrelation parameters; lattice filter; orthogonality; periodic signal; simulation; two-dimensional adaptive line enhancer; Adaptive filters; Colored noise; Convergence; Decorrelation; Finite impulse response filter; Lattices; Line enhancers; Predictive models; Samarium; Two dimensional displays;
Conference_Titel :
Circuits and Systems, 1996., IEEE Asia Pacific Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-3702-6
DOI :
10.1109/APCAS.1996.569256
