Unmanned aerial vehicle real-time tracking and rapid countermeasure integrated control system and method

Abstract

The invention discloses an unmanned aerial vehicle real-time tracking and rapid countermeasure integrated control system and method. The system comprises a receiving antenna, an attenuation module, a frequency mixing module, an intermediate frequency processing module, a high-speed ADC, an FPGA, a high-speed DAC, an IQ driving module, an IQ modulation module, a coupling detection module, an amplifier and a transmitting antenna which are sequentially connected. The frequency mixing module is connected with the receiving local oscillator; the FPGA is connected with the CPU; the transmitting local oscillator is connected with the IQ modulation module through the phase modulation module; according to the method, an efficient digital signal processing algorithm is adopted to realize real-time processing of unmanned aerial vehicle signals; capturing and analysis of the frequency hopping signal are completed within an extremely short time, the target signal is identified, the countering signal is transmitted to the target, the countering signal can track hopping of the frequency hopping signal, the instantaneous frequency spectrum of the countering signal is narrow, only the instantaneous frequency spectrum of the frequency hopping signal needs to be covered, power is saved, and the influence on the electromagnetic environment is reduced.

Description

technical field [0001] The invention relates to the technical field of UAV monitoring and countermeasures, in particular to an integrated control system and method for real-time tracking and rapid countermeasures of UAVs. Background technique [0002] With the rapid growth of the UAV market, some problems caused by the "black flight" of UAVs have brought serious hidden dangers to the security of major events; UAVs have the characteristics of flexible maneuverability, intelligent control, and low cost. The use of UAVs to carry out illegal and criminal activities seriously threatens public safety. Therefore, it is necessary to effectively monitor and counter UAVs, especially "black flying" UAVs. [0003] UAV detection mainly includes radar detection, radio signal monitoring, photoelectric tracking, sound wave identification, etc. Radar cannot detect very small drones and cannot be used in urban environments; acoustic wave detection and photoelectric tracking are susceptible t...

AI Technical Summary

Problems solved by technology

[0005] At present, there are equipments that use radio to detect or counter UAVs, but the detection and countermeasures are relatively separated. During the countermeasures, the transmitted signals affect the monitoring, and real-time tracking cannot be achieved. formula and counter

The UAV remote control signal adopts frequency hopping or spread spectrum signal, the duration of frequency hopping is short, and it occupies a large bandwidth. If it cannot be tracked and suppressed in real time, it can only be suppressed in the whole frequency band. Such a high-power signal will seriously affect the suppression coverage, and Interference with adjacent frequency bands

The currently separated equipment is bulky and inconvenient for transportation and installation

Images