航空学报 > 2011, Vol. 32 Issue (6): 1092-1101   doi: CNKI:11-1929/V.20110324.1151.003

基于非全向天线的无人机MIMO信道模型研究

胡永江, 李小民   

  1. 军械工程学院 光学与电子工程系, 河北 石家庄 050003
  • 收稿日期:2010-09-03 修回日期:2010-12-15 出版日期:2011-06-25 发布日期:2011-06-24
  • 通讯作者: Tel.:0311-87994254-12 E-mail: hyj_xp@163.com E-mail:hyj_xp@163.com
  • 作者简介:胡永江(1977- ) 男, 博士, 讲师。 主要研究方向: 无人机数据链及组网。 Tel: 0311-87994254-12 E-mail: hyj_xp@163.com 李小民(1969- ) 男, 博士, 教授, 博士生导师。 主要研究方向: 军用通信、 导航与制导。 Tel: 0311-87994257 E-mail: lixiaomin@163.com
  • 基金资助:

    国防预研项目 (513250506)

Investigation on MIMO Wideband Channel Model for Unmanned Aerial Vehicle with Non-omnidirectional Antennas

HU Yongjiang, LI Xiaomin   

  1. Department of Optics and Electrics Engineering, Ordnance Engineering College, Shijiazhuang 050003, China
  • Received:2010-09-03 Revised:2010-12-15 Online:2011-06-25 Published:2011-06-24

摘要: 为研究无人机信道特性,针对地面控制站(GCS)环境特点和非全向多天线系统,建立并分析了基于散射体三维几何分布的单跳同心圆筒散射(GBSBCCS)宽带传播模型,根据方位角非全向散射和俯仰角非对称分布的特性,结合无人机实际飞行参数特点,推导出简洁的空时频联合相关函数。通过仿真进行了验证,并对相关特性影响因素进行分析,结果表明地面控制站采用非全向天线时,信道的空时频相关尺度将会增大,而无人机采用非全向天线不会影响其相关性。

关键词: 同心圆筒散射, 非全向天线, 宽带信道模型, 无人机, 多输入多输出

Abstract: In order to analyze channel characteristic of the unmanned aerial vehicles, according to the surrounding traits around the ground control station (GCS) and the non-omnidirectional multiple antennas system, the paper has presented and analyzed a three-dimensional geometrically-based single-bounce concentric-cylinders scattering (GBSBCCS) wideband channel model. According to the characteristic of non-isotropic scattering for the azimuth angle and asymmetrical distribution for the elevation angle, the terse joint space-time-frequency cross-correlation function is derived from the flying parameters in practice. The simplified validity and the factors of the correlation are analyzed in the simulation, and results show that the correlation scale of the space-time-frequency will be enlarged while the non-omnidirectional antennas are employed in the GCS, but the non-omnidirectional antennas used in the aircraft do not affect the correlation scale.

Key words: concentric-cylinders scattering, non-omnidirectional antenna, wideband channel model, unmanned aerial vehicles, MIMO

中图分类号: