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Measurement and Analysis of Radiation Leakage from a GPS Module for the Detection of Drones
IEEE Antennas and Wireless Propagation Letters ( IF 4.2 ) Pub Date : 2020-09-01 , DOI: 10.1109/lawp.2020.3011851
Hyunseong Kang , Kyung-Bin Bae , Myung-Hoon Jung , Seong-Ook Park

Radiation leakage of a global positioning system (GPS) module was investigated for a drone detection system by measuring the attenuation effect and long-range detection on the outside of a building. The GPS module consisting of the radio frequency components is essential to control the flight of a drone. There is an unavoidable leakage in the GPS module during operation, and the leakage signal from the GPS module was analyzed and detected with a high-sensitivity receiver. To analyze the leakage from the GPS module during operation, we obtained the whole frequencies of leakage signals and the radiation pattern of a drone with the GPS module in an anechoic chamber. From the data, we measured the leakage signals in an outdoor space. Through outdoor measurement, it was confirmed that the theoretical attenuation effect was consistent with the measured value with a distance variation. Finally, the GPS leakage in the drone was measured up to 950 m with a high signal-to-noise ratio (SNR) of 25 dB.

中文翻译:

用于检测无人机的 GPS 模块辐射泄漏的测量和分析

通过测量建筑物外部的衰减效应和远程检测,研究了无人机检测系统的全球定位系统 (GPS) 模块的辐射泄漏。由射频组件组成的 GPS 模块对于控制无人机的飞行至关重要。GPS模块在运行过程中存在不可避免的泄漏,利用高灵敏度接收机对GPS模块泄漏信号进行分析检测。为了分析 GPS 模块在运行过程中的泄漏,我们获得了泄漏信号的整个频率和带有 GPS 模块的无人机在消声室中的辐射模式。根据数据,我们测量了室外空间的泄漏信号。通过户外测量,证实理论衰减效果与实测值一致,随距离变化。最后,以 25 dB 的高信噪比 (SNR) 测量无人机中的 GPS 泄漏高达 950 m。
更新日期:2020-09-01
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