Improved Direction Finding Accuracy for A Limited Number of Antenna Elements with Harmonic Characteristic Analysis
Sen Yuan (Microwave Sensing, Signals & Systems)
Francesco Fioranelli (Microwave Sensing, Signals & Systems)
Alexander Yarovoy (Microwave Sensing, Signals & Systems)
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Abstract
A direction-finding approach for arrays with a limited number of antenna elements has been investigated. A method based on the harmonic analysis of the received signal has been proposed to solve it. The angle estimation accuracy has been improved by angle searching and peak detection. The proposed method is theoretically described and numerical simulations are provided to verify its effectiveness. Compared with classical direction-finding methods with limited antenna elements, significant improvements have been demonstrated.