Positional tolerance analysis and error correction of micro-UAV swarm based antenna arrays
Positional tolerance analysis and error correction of micro-UAV swarm based antenna arrays
复制标题
微型无人机群天线阵列位置公差分析与误差修正
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
D. Werner
中科院分区：
文献类型：
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作者：
J. S. Petko;D. Werner
随着天线阵列系统的技术和应用不断发展，位置公差误差成为影响其设计性能的一个更为重要的因素。近期基于微型无人机群的天线系统的发展创造了新的遥感和情报收集机会。然而，这些阵列的性能已被证明对飞机周围空气中的湍流较为敏感。此外，新的高频和红外通信标准使得能够无线传输更大量的信息。然而，由于波长较小，制造误差对这些系统的影响更大。本文的目的是更好地理解位置公差误差对天线阵列系统的影响。本文还致力于开发一种方法，可用于减少这种位置噪声对天线系统性能的影响。本文引入的噪声模型表明，只要公差在电学上相似，稀疏阵列并不比标准阵列更容易受到噪声影响。此外，本文还表明，元件更多的阵列比尺寸较小的阵列对位置误差更具鲁棒性。
As the technology and applications of antenna array systems continue to evolve, positional tolerance errors become a more significant factor in the performance of their design. The recent development of micro-UAV swarm-based antenna systems has created new remote sensing and intelligence gathering opportunities. However, the performance of these arrays has proven to be sensitive to turbulence in the air around the aircraft. In addition, new high frequency and IR communication standards has allowed for the wireless transfer of greater amounts of information. However, fabrication errors have more of an impact in these systems because of the small size of the wavelength. The goal of this paper is to better understand the impact that positional tolerance errors has on an antenna array system. This paper also works to develop a methodology that can be used to reduce the impact this positional noise has on the performance of this antenna system. The noise models introduced in this paper show that sparse arrays are no more susceptible to noise than standard arrays as long as the tolerances are electrically similar. In addition, the paper shows that arrays with more elements are more robust to positional errors than smaller sized arrays.