A Combined Antenna Array Deployment with High Positioning Accuracy and Low Angular Measurement Error

Abstract

In this paper, an antenna array composed of circular array and orthogonal linear array is proposed by using the design of long and short baseline “orthogonal linear array” and the circular array ambiguity resolution design of multi-group baseline clustering. The effectiveness of the antenna array in this paper is verified by sufficient simulation and experiment. After the system deviation correction work, it is found that in the L/S/C/X frequency bands, the ambiguity resolution probability is high, and the phase difference system error between each channel is basically the same. The angle measurement error is less than 0.5°, and the positioning error is less than 2.5 km. Notably, as the center frequency increases, calibration consistency improves, and the calibration frequency points become applicable over a wider frequency range. At a center frequency of 11.5 GHz, the calibration frequency point bandwidth extends to 1 200 MHz. This combined antenna array deployment holds significant promise for a wide range of applications in contemporary wireless communication systems.

Graphical abstract

Keywords

antenna array deployment / ambiguity resolution / phase consistency / angle measurement error / positioning error.