论文标题
使用时空调制和干涉天线阵列对多个目标的毫米波角度估计
Millimeter-Wave Angle Estimation of Multiple Targets Using Space-Time Modulation and Interferometric Antenna Arrays
论文作者
论文摘要
在这项工作中介绍了使用分布式干涉天线阵列和宽带时空调制的多个目标估算角度估计的新方法。在一个或多个目标存在下，到达角度的干涉阵列测量通常是模棱两可的。我们提出了一种新的方法，通过从多个天线基线的角度乘以伪轴光谱来减轻干涉测量中的歧义，从而仅在目标角度检测到。使用单个线性频率调制（LFM）发射器和带有$ n $元素的接收干涉阵列，我们显示了一种简单且计算上有效的技术，以估计最多$ \ Mathcal {O}（n^2）$目标的角度。我们描述了该技术背后的理论，当前的详细模拟以及使用三元素毫米波测量系统的实验验证。
A new method of angle estimation of multiple targets using a distributed interferometric antenna array and wideband space-time modulation is presented in this work. Interferometric array measurements of angle of arrival are generally ambiguous in the presence of one or more targets. We propose a new method of mitigating ambiguities in interferometric measurements by multiplying the angle pseudo-spectra from multiple antenna baselines, resulting in detections at only the angles of the targets. Using a single linear frequency modulated (LFM) transmitter and a receive interferometric array with $N$ elements we show a simple and computationally efficient technique to estimate the angle of up to $\mathcal{O}(N^2)$ targets. We describe the theory behind the technique, present detailed simulations, and an experimental verification using a three-element millimeter-wave measurement system.
