期刊名称：International Journal on Electrical Engineering and Informatics
印刷版ISSN：2085-6830
出版年度：2013
卷号：5
期号：4
DOI：10.15676/ijeei.2013.5.4.6
出版社：School of Electrical Engineering and Informatics
摘要：The Ka-band channel model ofHigh Altitude Platform (HAP) for high speedtrain is modeled as a flat and time varying Rician process with 10-25 dB Rician factor.In order to compensate for the time varying fading channel and considering the fact thatthe Line-of-Sight (LOS) component is dominant, adaptive beamforming with the leastsquares(LS) approach is employed at the receiver. Theoretical analysis of the LSalgorithm is performed for very large Rician factor in the high Signal to Noise Ratio(SNR) regime. In particular, the analysis is with respect to the estimated autocorrelationmatrix of the received vector and the beamforming weight. It is shown that, theestimated autocorrelation matrix of the received vector resembles the autocorrelationmatrix of the array steering response. The presented analysis are then verified by MonteCarlo simulations
关键词：least-squares (LS); High Altitude Platform (HAP); Ka-band; beamforming;doppler
