System integrated of communication and direction-finding with space-time OFDM modulation for micro aerial vehicle

被引：0
|
作者：
Hong, Tao [1 ]
Song, Mao-Zhong [1 ]
Liu, Yu [1 ]
Xu, Zong-Ze [1 ]
机构：
[1] College of Information Science and Technology, Nanjing University of Aeronautics and Astronautics
来源：
| 2008年 / Science Press卷 / 30期
关键词：
Direction-finding; Micro aerial vehicle; Multi-antenna; OFDM; Space-time modulation;
D O I：
10.3724/sp.j.1146.2007.00576
中图分类号：
学科分类号：
摘要：
To solve the direction-finding and communication of the micro aerial vehicle in peculiar environment, a new communication and tracking system is proposed. The main idea of this system is that the space-time OFDM signal carrying spatial information is transmitted. The transmitter adopts eight element antennas in this system, which are divided into four arrays to produce multi-beams. There are spatial information and communication message in the signal space of each OFDM subcarrier. The micro aerial vehicle with single antenna could determine the ambiguity resolution of multi-beams with many observed samples to estimate the precision direction of receiver relative to transmitter. This paper presents the geometry of antenna arrays, the space-time signal feeding antenna and the direction-finding algorithm of azimuth and elevation. The performances of bit error rate and direction-finding in the two-dimensional space through Gaussian channel are investigated.
引用
收藏
页码：2450 / 2453
页数：3
相关论文
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