Low Altitude Drone Defense System

1.       Foreword

The drone defense system has the functions of positioning detection, video tracking, recognition, directional frequency interference suppression, and narrowband precision strike against drones. The system achieves accurate detection, tracking, positioning, and recognition of multiple low altitude drones through radio lateral detection, radar positioning and tracking, optoelectronic equipment tracking and ranging, and utilizes big data processing, artificial intelligence, and machine learning. It uses drone navigation deception technology to drive away drones, and uses electromagnetic suppression technology (directional frequency interference and narrowband precision strike) to achieve interference strikes against dangerous drone targets. Expand the traditional planar security system to a three-dimensional security system, achieving low altitude protection within a radius of 5000 meters of the defense area. It has been widely applied in government agencies, prison guards, aviation airports, petrochemical industry, military restricted areas, major events, and other fields.

2.       System composition

The low altitude drone defense system consists of a backend control platform (monitoring and controlling the entire process), a detection and tracking system (for detection, recognition and alarm including a low altitude detection radar, an optoelectronic tracking and ranging system, Drone RF Detection and Localization device), precision strike device linked to detection and tracking system, drone navigation deception device (for directional displacement, no fly zone projection and fixed area traction), Wideband jammer, Drone Anti Gun

2.1.       backend control platform

The control platform is a central hub for the sharing and exchange of multi-sensor information and multiple network nodes. Through distributed and multi center resource sharing services, it realizes the interconnection, interworking, and data sharing of multi center data resources and multiple nodes. It can store, manage, and analyze multiple sensor data from multiple nodes in the region, and is the core of the system.

Detection and warning: Drone intrusion detection and warning, which uses the front-end detector to detect signals and compare them in real-time with the back-end drone spectrum feature sample library model to determine the type, brand, and model of the invading drone. All day, all weather, unmanned, pre evaluated based on the level of hazardous events. It can simultaneously detect intrusion information from multiple drones, and provide multi-dimensional warning through voice and warning lights for illegal intrusion drones in the first time.

Accurate positioning: The system utilizes multi-site front-end detection and sensing equipment, radar positioning technology, and optoelectronic tracking and ranging technology to fuse the signal positions of drones and remote controls with the detector's dimensional data. It can accurately locate the three-dimensional coordinate data of the invading drones and pilots, facilitating investigation and evidence collection of "black flying" personnel, and taking timely disposal measures.

Precise Defense: Designate to jam any one of the two drones;

Traction drive off: Drone trajectory display, the system continuously tracks the three-dimensional coordinate data of the invading drone to form high-precision trajectory information. Determine the trend of the drone's flight trajectory, perform directional displacement of the drone, drive the drone away to a safe disposal area

Full-autonomy Mode: 24-hour automatic detection and alarm, no need of personnel on duty

Combined Defense: combination of narrowband, frequency hopping, low-power precise defense and wideband high-power jamming;

Black & White List: Able to mark the drone into black and white list with a single click, and the white list drone does not alarm

Model Library: Support all DJI models, mainstream brands, DIY drones. Cover more than 98% of drone models on the market

Extended networking: The system adopts the principles of functional modularization and interface standardization design. It can be customized and expanded according to the different needs of the purchaser, or equipment configurations can be added or reduced according to the needs to meet the actual needs, expand system functions and performance.

2.2.       low altitude detection radar

This radar is mainly used in complex ground clutter environments and various meteorological conditions. It undertakes the detection, tracking, and classification recognition of "low, slow, and small" targets 24/7, completing the detection and warning tasks of active targets in key areas, providing information such as distance, azimuth, elevation, speed, and attributes of the targets, and providing effective information support for low altitude airspace monitoring and management.

Its main detection objects are "low slow small" targets such as drones, light aircraft, helicopters, powered delta wings, airships, floating balls, etc.

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2.3.       Optoelectronic Tracking and Ranging System

The photoelectric tracking and ranging system is designed Remote photoelectric detection system for the three-dimensional security protection of key places and areas such as conference centers, office buildings, prisons, airports, military bases, nuclear and biochemical industries, border and coastal defense, etc. It can integrate high-definition visible light cameras, refrigeration/non refrigeration thermal imagers, near-infrared laser lighting and other multispectral detection modules. According to needs, modules such as laser ranging, positioning and navigation, electronic compass, automatic tracking, intelligent analysis, etc. can also be installed to achieve all-weather, full time, and full dimensional discovery, positioning, tracking, recognition, and tracking of targets and complete forensic functions.

The detection distance can reach over 2km.

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2.4.       Drone RF Detection and Localization device

This product is used for UAV detection, identification and jamming system. has the advantages of easy deployment, mobile compatibility, early warning and positioning with trajectory tracking. When a drone enters defense area, this device can raise the alarm, determine the real-time location of the target and the pilot through CRPC message-level protocol cracking, and record the trajectory of the UAV

This product passively detects radio signals in the defense area 24 hours a day without interruption through omnidirectional antennas. after collecting wireless electrical signals, uses radio spectrum sensing technology to extract UAV communication signals (mainly remote control and image transmission signals) from background noise and conduct in-depth reverse parsing of them.

Through offline analysis based on UAV communication protocols to extraction of features (electronic fingerprint ID), including but not limited to channel distribution, modulation scheme, coding scheme, pilot sequence, synchronization sequence, link layer structure, etc. Based on the above analysis results, a UAV detection database is formed, and matching is detected in real time in the actual radio environment. If the signal belongs to the whitelist, no warning and defense will be conducted. If the signal is not on the whitelist, the system will automatically warn, and transfer them to backend control platform, thus, achieving real-time detection and recognition of drones within the surrounding airspace.

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2.5.       Precision Strike Device

precision strike device use narrowband low-power intelligent frequency hopping tracking cuts off the drone control link or intelligently takes over the drone remote control signal, without interference to the surrounding environment; Accurately distinguish each drone in the drone data management library, distinguish between enemy and self, and accurately select invading drones for attack;

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2.6.       Drone Navigation Deception Device

By regenerating satellite navigation deception signals of no less than two frequency bands, deception interference is carried out on the satellite navigation coordinate information received by unmanned aerial vehicles using satellite navigation positioning, achieving the function of no-fly zone projection or area rejection.

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2.7.       Drone Anti Gun

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2.8.       Wideband jammer

2.8.1.       Waterproof Drone Jammer

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2.8.2.       Drone jammer with draw bar box

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2.8.3.       Backpack Drone jammer

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