Title :
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
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;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393653
