QRD-based lattice algorithm for a generalized multichannel least squares adaptive filtering

Author

Shan, OuYang ; Dexin, Zhou ; Bing, H. ; Jun, Xiang ; Huijun, Fang

Author_Institution

Dept. of Radio Eng., Guilin Inst. of Electron. Technol., Guangxi, China

fYear

1993

fDate

3-6 May 1993

Firstpage

44

Abstract

A generalized multichannel Givens-lattice algorithm for adaptive filtering is presented. It is shown that the multichannel Givens-lattice algorithm with a different number of parameters in each channel can be derived by appending an orthogonal prerotation array to the algorithm of one-channel, and that it has a computational complexity of O( p²) for each p-channel lattice stage. By exploiting other similar Givens-rotation-based least squares algorithms, a general conclusion is proposed

Keywords

adaptive filters; adaptive signal processing; computational complexity; filtering theory; least squares approximations; Givens-lattice algorithm; QRD-based lattice algorithm; computational complexity; multichannel least squares adaptive filtering; orthogonal prerotation array; p-channel lattice stage; Adaptive filters; Computational complexity; Covariance matrix; Equations; Estimation error; Feedback; Filtering algorithms; Lattices; Least squares methods; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on

Conference_Location

Chicago, IL

Print_ISBN

0-7803-1281-3

Type

conf

DOI

10.1109/ISCAS.1993.393653

Filename

393653