Anti-interference anti-deception ADS-B receiver based on directional antennas, and receiving method of anti-interference anti-deception ADS-B receiver

Abstract

The invention discloses an anti-interference anti-deception ADS-B receiver based on directional antennas, and a receiving method of the anti-interference anti-deception ADS-B receiver. The method specifically comprises the steps: forming an antenna array through a plurality of directional antennas, wherein each directional antenna is connected with a dedicated receiving channel, thereby achievingthe signal amplifying, filtering and mixing; carrying out the demodulation of signals through a dedicated demodulation decoding module, and obtaining the state information of an aircraft; extracting the position information of the aircraft, and enabling a direction calculation module to estimate the direction of an incoming wave through the position information of the aircraft and the position information of a receiver; enabling comparison module to achieve the matching of the estimated direction of the incoming wave with an incoming wave direction range of a directional antenna receiving thesignal, and transmitting a matching result and the state information of the aircraft to a control system through an output module. The method enlarges the coverage of the receiver, solves a problem that a signal cannot be correctly demodulated and decoded during information collision, and improves the anti-interference and anti-deception capability of the receiver.

Description

technical field [0001] The invention belongs to the technical field of antenna signal reception, relates to the ADS-B receiver technology used for aviation supervision, and specifically relates to an anti-jamming and anti-spoofing ADS-B receiver based on a directional antenna and a receiving method thereof. Background technique [0002] ADS-B technology, that is, Automatic Dependent Surveillance-Broadcast, is a technology that can automatically obtain parameters from related airborne equipment and broadcast the aircraft's position, altitude, speed, heading, and identification to other aircraft or ground stations without manual operation or inquiry. No. and other information for the controller to monitor the status of the aircraft. [0003] The workflow of the ADS-B system is as follows: (1) The aircraft obtains information such as the position and speed of the aircraft from GNSS and other navigation systems, and obtains other required parameter information from associated ai...

AI Technical Summary

Problems solved by technology

[0006] The invention provides an anti-jamming and anti-spoofing ADS-B receiver based on a directional antenna. The device adopts an antenna array composed of a plurality of directional antennas, which improves the coverage of the receiver and solves the problem that the signal cannot be correctly demodulated when messages collide. Decoding problem, improve the anti-jamming and anti-spoofing ability of the receiver

Images