Multipolarized Vector Sensor Array Antenna System for Search and Rescue Applications

Radio-frequency (RF) signals have been used in various technological and communication applications, necessitating systems that can accurately detect and track these signals. Precise geolocation of such signals is vital,, especially in emergencies such as search and rescue efforts and in navigation and communication. However, existing systems often struggle to correctly identify and track the origins of these signals, leading to inefficiencies. The main problem with current strategies is the lack of accuracy in two-dimensional geolocation of RF signals. The complexity of reading and interpreting RF signals can lead to inaccuracies in determining the exact locations of these signal sources. In emergency situations, these inaccuracies can result in delays and potential failures in response efforts. The need for an improved RF signal geolocation system is evident.

Technology Description

This technology is a direction-finding (DF) system designed for the detection and geolocation of radio-frequency signals in two dimensions: azimuth and elevation. The DF system consists of an assembly of multipolarized loop antennas connected to a beamformer that emits monopole, dipole, and loop antenna element modal signals. A multichannel digital receiver system, also a part of the DF system, is configured to accept modal signals from the beamformer. What distinguishes this technology from others is its multipolarized antenna array that amplifies the precision of detecting RF signals, including emergency beacon sources. It provides two-dimensional geolocation, enabling highly accurate location tracking within the azimuth and elevation planes. The inclusion of a multichannel digital receiver to receive and process modal signals further enhances the system's detection capabilities, making it an effective solution for diverse applications.