Antenna Array Application to Support Operation of GNSS Receivers under Interfering Signals

Q3 Engineering Radioelectronics and Communications Systems Pub Date : 2024-07-30 DOI:10.3103/s0735272723100023

Valeriy Konin, Yuliya Averyanova, Oksana Ishchenko

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Abstract

Against the background of the intensive development and implementation of satellite technologies for position determination, navigation, and time synchronization, one of the central threats to critical industries is the creation of intentional interference to the signals of global navigation satellite systems. It is shown that the use of small-sized antenna arrays in navigation systems consisting of satellite constellations of GPS, GLONASS, GALILEO, BEIDOU, QZSS, or their combinations makes it possible to detect and suppress interfering signals by forming zeros of the antenna array directional pattern in the directions of their arrival. The interfering signal suppression is supplemented with detection procedures while maintaining the ability of navigation by using from one to four satellite systems according to criteria of the required number of satellites in the line of sight and the permissible geometric factor. The process of suppressing the interfering signal from four directions is illustrated by three scenarios, the initial data for which are signals from 35 satellites in the line of sight collected in real-time from five systems. It has been shown that the use of five systems and 35 satellites ensures the suppression of the interfering signal. At the same time, 22 satellites are involved in solving the navigation problem, 13 satellites are below the detection threshold, and the geometric factor is 1.18. When using GPS, GLONASS, and 19 satellites, the interfering signal is suppressed. In this case, 10 satellites are involved in solving the navigation problem, 9 are below the detection threshold, and the geometric factor is 2.1. When using only GPS, the interfering signal suppression is also ensured. This time 7 satellites are involved in solving the navigation problem, 4 are below the detection threshold, and the geometric factor is 1.76.

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支持干扰信号下全球导航卫星系统接收器运行的天线阵列应用

摘要在定位、导航和时间同步卫星技术不断发展和应用的背景下，对关键行业的主要威胁之一是对全球导航卫星系统信号的故意干扰。研究表明，在由 GPS、GLONASS、GALILEO、BEIDOU、QZSS 等卫星星座或其组合组成的导航系统中使用小型天线阵列，可以在干扰信号到达的方向形成天线阵列方向图的零点，从而检测和抑制干扰信号。干扰信号抑制辅以检测程序，同时根据视线内所需卫星数量和允许的几何系数标准，使用一至四个卫星系统保持导航能力。抑制来自四个方向的干扰信号的过程通过三种情况来说明，其初始数据是由五个系统实时收集的视线内 35 颗卫星的信号。结果表明，使用五个系统和 35 颗卫星可确保抑制干扰信号。同时，有 22 颗卫星参与解决导航问题，13 颗卫星低于检测阈值，几何系数为 1.18。当使用 GPS、GLONASS 和 19 颗卫星时，干扰信号被抑制。在这种情况下，有 10 颗卫星参与解决导航问题，9 颗卫星低于检测阈值，几何因子为 2.1。只使用 GPS 时，也能确保抑制干扰信号。此时有 7 颗卫星参与解决导航问题，4 颗卫星低于检测阈值，几何因子为 1.76。

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来源期刊

Radioelectronics and Communications Systems Engineering-Electrical and Electronic Engineering

CiteScore

2.10

自引率

0.00%

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期刊介绍： Radioelectronics and Communications Systems covers urgent theoretical problems of radio-engineering; results of research efforts, leading experience, which determines directions and development of scientific research in radio engineering and radio electronics; publishes materials of scientific conferences and meetings; information on scientific work in higher educational institutions; newsreel and bibliographic materials. Journal publishes articles in the following sections:Antenna-feeding and microwave devices;Vacuum and gas-discharge devices;Solid-state electronics and integral circuit engineering;Optical radar, communication and information processing systems;Use of computers for research and design of radio-electronic devices and systems;Quantum electronic devices;Design of radio-electronic devices;Radar and radio navigation;Radio engineering devices and systems;Radio engineering theory;Medical radioelectronics.