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The Scientific World Journal
Volume 2014, Article ID 206185, 10 pages
http://dx.doi.org/10.1155/2014/206185
Research Article

Characteristic Analysis on UAV-MIMO Channel Based on Normalized Correlation Matrix

Unmanned Aerial Vehicle Department, Mechanical Engineering College, Shijiazhuang, Hebei 050003, China

Received 5 November 2013; Accepted 11 December 2013; Published 14 April 2014

Academic Editors: J. Bajo and H. Salgado

Copyright © 2014 Gao Xi jun et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Based on the three-dimensional GBSBCM (geometrically based double bounce cylinder model) channel model of MIMO for unmanned aerial vehicle (UAV), the simple form of UAV space-time-frequency channel correlation function which includes the LOS, SPE, and DIF components is presented. By the methods of channel matrix decomposition and coefficient normalization, the analytic formula of UAV-MIMO normalized correlation matrix is deduced. This formula can be used directly to analyze the condition number of UAV-MIMO channel matrix, the channel capacity, and other characteristic parameters. The simulation results show that this channel correlation matrix can be applied to describe the changes of UAV-MIMO channel characteristics under different parameter settings comprehensively. This analysis method provides a theoretical basis for improving the transmission performance of UAV-MIMO channel. The development of MIMO technology shows practical application value in the field of UAV communication.