Efficient recognition method for flight control signal of low-altitude, slow-speed and small unmanned aerial vehicle

Abstract

The invention discloses an efficient recognition method for the flight control signal of a low-altitude, slow-speed and small unmanned aerial vehicle. The method comprises the steps of step 1, carrying out primary detection on a flight control link signal; step 2, extracting key features, and constructing a target feature database; step 3, carrying out feature fusion and optimization; step 4, analyzing the signal according to the fused optimized features so as to obtain the type, the frame format and the keyword segment of the signal, and storing the obtained analysis result into the target feature database; step 5, according to a learning algorithm based on a neural network, realizing the accurate classification and recognition of the target, and obtaining a correct recognition result. According to the method, the recognition problem for the flight control signals of low-altitude, slow-speed and small unmanned aerial vehicles can be solved. Therefore, the recognition, management and control for a specific airspace can be realized. Meanwhile, the high-efficiency early warning and defense effect for various low-altitude, slow-speed and small unmanned aerial vehicles which have illegally intruded into secret-related and sensitive airspaces can be realized. The method is higher in correct recognition rate, lower in calculated amount, higher in processing efficiency and strong in applicability.

Description

technical field [0001] The invention relates to an efficient identification method for flight control signals of low, small and slow unmanned aerial vehicles. Background technique [0002] Low, small and slow drones usually refer to aerial drone targets with a flying altitude of less than 1,000 meters, a speed of less than 300 kilometers per hour, and a radar reflection area of ​​less than 2 square meters. Low, small and slow UAVs are small in size, light in weight, easy to carry, and easy to operate. Various small devices, such as navigation equipment, communication equipment, and infrared camera equipment, can be added to the fuselage to expand its functions and accomplish multiple tasks. kind of task. At the same time, due to the relatively low technical threshold and cost of low, small and slow UAVs, many companies at home and abroad are researching and producing this type of UAVs, and they have been widely used in the civilian and military markets. [0003] The identi...

AI Technical Summary

Problems solved by technology

However, there is currently no method for identifying low, small and slow UAVs based on the characteristics of the flight control signal.

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