Title :
Number of multipaths estimation by unitary transformation
Author :
Lichun Li ; Chongsen Ran ; Feng Wei
Author_Institution :
Coll. of Inf. Eng., Inf. Eng. Univ., Zhenzhou, China
Abstract :
A new method for the estimation of the number of multipaths is proposed. By unitary transforming the covariance matrix, the number of multipaths can be evaluated by the Gerschgorin radii of the transformed matrix. Simulation results show that the proposed method can make the estimation accurately even at small data samples.
Keywords :
channel estimation; covariance matrices; eigenvalues and eigenfunctions; multipath channels; transforms; Gerschgorin radii; covariance matrix; data samples; generalized eigenvalue; multipath estimation; simulation; transformed matrix; unitary transformation; Attenuation; Covariance matrix; Delay effects; Delay estimation; Educational institutions; Eigenvalues and eigenfunctions; Gaussian noise; Mathematical model; Multiaccess communication; Radio access networks;
Conference_Titel :
Communications, Circuits and Systems, 2004. ICCCAS 2004. 2004 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
0-7803-8647-7
DOI :
10.1109/ICCCAS.2004.1345959
