A UAV detection and tracking jamming device based on frequency hopping signal

Abstract

The invention discloses an unmanned aerial vehicle detection and tracking interference device based on a frequency hopping signal. The device comprises a plurality of directional antennas, an antenna selection control module, a power amplifier and a comprehensive signal processor. Use the antenna with the highest signal strength to determine the general direction of the drone. The integrated signal processor has a variety of signal processing algorithms, based on RSS and simple threshold rules to detect invading UAVs, and analyze the number of frequency hopping channels and frequency hopping periods of UAV remote control signals through pattern recognition algorithms such as spectrograms, and finally generate The jamming signal is transmitted through the designated antenna to suppress the drone's remote control signal and make it return or make an forced landing. The invention learns and tracks the frequency hopping signal, generates an interference signal to suppress the frequency hopping signal, suppresses the frequency hopping signal accurately, the bit error rate generated by the drone is high, and the dry-through ratio is greatly improved. The suppression signal only generates a corresponding narrow-band interference signal, and the probability of overlapping with other surrounding signals is very small, so it has the characteristics of little interference to the surrounding electromagnetic environment.

Description

A UAV detection tracking jamming device based on frequency hopping signal technical field The present invention relates to unmanned aerial vehicle signal detection and interference field, be specifically related to a kind of unmanned aerial vehicle detection based on frequency hopping signal Tracking jamming device. Background technique In recent years, the small civil unmanned aerial vehicle market dominated by multi-rotor unmanned aerial vehicles has ushered in a blowout growth. Has been widely used in industry, people's livelihood and so on. However, due to the current lack of effective regulation, the "blackmail" of drones around the world Frequent incidents of "flying" and "indiscriminate flying" seriously endanger personal privacy, public safety, aviation safety and national security. Therefore, the research and development of anti-UAV systems has received great attention at home and abroad. Common anti-drone means include video, audio Radio frequency, rada...

AI Technical Summary

Problems solved by technology

However, radio frequency interference countermeasures usually use a wide range of frequency bands. Although this can suppress drone remote control signals, it will also affect other radio frequency devices around. Therefore, it is urgent to develop a narrow-band jamming signal for drone frequency hopping signals. Reduce interference to the surrounding electromagnetic environment

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