Unmanned plane monitoring system based on software radio

Abstract

The invention discloses an unmanned plane monitoring system based on a software radio. The system comprises at least one horn antenna used for scanning and monitoring an air unmanned plane, a front radio frequency terminal used for receiving and processing a wireless signal scanned by the horn antenna, a down conversion module which is connected with a first output port of the front radio frequency terminal and is used for receiving a radio frequency signal sent by the first output port of the front radio frequency terminal and carrying out down conversion for the radio frequency signal to acquire an L-band radio frequency signal, an FPGA core processing module used for carrying out acquisition, calculation and analysis of the L-band radio frequency signal to acquire carrier wave center frequency of the unmanned plane and calculating and determining the position orientation of the unmanned plane according to the carrier wave center frequency, and a PC carrying out bidirectional communication with the FPGA core processing module. The unmanned plane monitoring system solves detection sensitivity, volume and information exposure problems existing in radar equipment in the prior art.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicle monitoring, in particular to an unmanned aerial vehicle monitoring system based on software radio. Background technique [0002] In modern warfare, with the rapid development of drone technology, how to deal with enemy drones is crucial to our intelligence reconnaissance and collection; therefore, how to quickly and effectively discover enemy drones and other issues are increasingly important. [0003] At present, the active detection technology using radar as a means is one of the important means to detect aircraft. Radar uses the method of transmitting radio waves into the air to detect objects and targets, so that it can report threat information in a timely and accurate manner; however, radar equipment detects UAVs have the main problems and defects of insufficient detection accuracy and sensitivity. [0004] With the development of modern drone technology, the size of drones is also g...

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Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the UAV monitoring system based on software radio provided by the present invention can monitor the UAV in real time with a large viewing angle, track the flight trajectory of the UAV, and solve the problems of the prior art. Radar equipment detection sensitivity, volume, exposure information issues

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