论文标题
相干分布的天线阵列的高准确性多节点范围
High-Accuracy Multi-Node Ranging For Coherent Distributed Antenna Arrays
论文作者
论文摘要
提出了波形在相干分布的天线阵列中用于高临界性的节点范围的波形的设计和实验。基于频谱高清范围的波形，所呈现的多频波形可以同时在阵列中的多个节点之间启用高清范围，而不会干扰。波形是基于独特的时频双工方法，该方法结合了每个节点对与不同的步骤循环结合了跨频率波形。波形本质上还包括有益的歧义属性。得出了波形的歧义函数，并获得了距离精度上的理论界限。在三元分布式阵列中以软件定义的基于无线电的节点进行了测量，表明两个从属节点和一个主节点之间的高性能明确范围。
The design and experimental implementation of a waveform for high-accuracy inter-node ranging in a coherent distributed antenna array is presented. Based on a spectrally-sparse high-accuracy ranging waveform, the presented multi-frequency waveform enables high-accuracy ranging between multiple nodes in an array simultaneously, without interference. The waveform is based on a unique time-frequency duplexing approach combining a stepped-frequency waveform with different step cycles per node pair. The waveform also inherently includes beneficial disambiguation properties. The ambiguity function of the waveform is derived, and theoretical bounds on the ranging accuracy are obtained. Measurements were conducted in software-defined radio-based nodes in a three-element distributed array, demonstrating high-accuracy unambiguous ranging between two slave nodes and one master node.
