Intelligent Anti-UAV Detection System

Anti-UAV Detection System

The Intelligent Anti-UAV Detection System, which consists of radar detection and visual detection, the Thunder Interceptor Subsystem, and the Skyshield Nexus Cloud-based Intelligent Command and Control System together form the Sentry Defense Technology Intelligent Counter-UAV Defense System. Through multi-point deployment and cloud-based collaboration, it can effectively detect and intercept long-range attack drones and loitering munitions represented by the Shahed-136 in a wide area. 

1. Typical Threat Target Analysis: Shahed – 136

The Shahed-136, a one-way attack drone (loitering munition), poses a serious threat to critical infrastructure due to its low cost, large-scale deployment capabilities, and unique flight profile. This solution focuses on effectively countering such targets. 

The key technical characteristics of Shahed-136 are shown in the following table:

Feature Category	Parameter	Description
Flight Ability	Cruise speed: ~185 km/h Range: >1,500 km	Equipped with a piston engine, it has long endurance and long-range capabilities, and can launch attacks from outside the defense zone.
Dimensions Specification	Wingspan: 2.5 m Length: 3.5 m Radar Cross Section (RCS): Extremely small (approximately 0.01 m²)	Small in size, with a high proportion of non-metallic materials, it is difficult for traditional radars to stably detect and track.
Operational Height	Middle Section: Normal cruise: 700~2000 m Stealth Penetration: 100 – 300 m Final paragraph: 100~200 m	Usually employs low-altitude or ultra-low-altitude penetration, using terrain to evade radar detection.

2. System Composition

This system is an intelligent, multi-layered anti-drone defense system specifically designed to address asymmetric threats represented by Shahed – 136. The system has the core advantages of “multi-dimensional perception, intelligent decision-making, hard-soft collaboration, and cloud-edge integration”. 

The system adopts an advanced “cloud-edge-end” three-tier architecture, ensuring efficient data processing, intelligent decision-making response, and strong scalability. 

Cloud (Cloud): Skyshield Nexus SkyShield Cloud Management Platform, responsible for Data Analysis, threat intelligence aggregation, and remote operation and maintenance management.

Edge Layer (Edge):  Sentry master node, manages all end-side devices within the unit,  is the core of tactical decision-making, responsible for multi-source data fusion, AI threat assessment, and countermeasure decision-making. 

Device Layer:  Various sensors and effectors deployed at the front end, including Tracker Eye  Pro, and Thunder . Meanwhile, this system supports the connection of radio jamming and navigation deception sub-devices to enhance countermeasure capabilities. 

3. Workflow  

The workflow of the Sentry system is highly automated, aiming to minimize the “Sensor-to Shooter Latency”.

3.1 Early Warning and Soft Kill Layer:

• Passive Detection: Tracker Eye Pro, as a device integrating radar and EO/IR, achieves target perception through the following full process:

3.2 Tracking and Hard Strike Layer:

• Radar Detection and Tracking:  Tracker Eye Pro’s phased array radar scans key area, quickly searches for and locks onto targets, and generates stable track data. 
• EO/IR Verification and Locking: While the radar is tracking, the system guides the high-resolution electro-optical/infrared (EO/IR) turret to continuously observe the target and identify its features, further confirming the target type, eliminating false alarms, and providing precise guidance for subsequent strikes.
• Autonomous Interception: Once the target enters the mid-layer defense zone (approximately 8 km), the Tian Dun Edge Command and Control Node will transmit the target track information to Thunder Intelligent Interceptor. Thunder autonomously plans the optimal interception route, launches at high speed, and after visually recognizing and locking onto the target, executes autonomous impact and destruction.

3. Typical Application Scenarios and Solutions

The Sentry system can be flexibly configured according to different protection requirements to form targeted solutions.

3.1 Scene 1: Borderline Strip Protection  

Requirement: Form an anti-drone buffer zone along the long border to prevent the infiltration of targets such as Shaheed-136.

Plan:  

Deployment Method: Multiple groups of Tracker Eye Pro devices are deployed along the border. Each group of devices is configured in180° sector coverage mode, with the antenna facing the direction of external threats.

Coverage Capacity Calculation:  

Tracker Eye Pro has an effective detection range of 10 km for large fixed-wing aircraft such as the Shaheed -136.

Single set of equipment (180° coverage): can effectively cover a semi-circular area with an area of 157 square kilometres. 

Deployment of 20 sets of equipment in a network: Assuming one set of equipment is deployed every 10 km along the border, a defense line up to 210 km long can be formed. The total coverage area is approximately 2,100 square kilometres of a strip-shaped isolation zone. 

3.2 Scenario 2: Point-like Protection of Core Key Areas

Requirement: Protect individual high-value targets, such as critical infrastructure, government buildings, military bases, etc., from precision drone strikes.

Deployment Method: Deploy a single set of Tracker Eye Pro devices at the key domain center or high point to achieve 360° omnidirectional coverage mode. Interceptors can be distributed at edge locations to reduce the time consumption in the initial and middle stages, thereby achieving faster and more efficient interception results.

Coverage Calculation: Single Set of Equipment (360° Coverage):  Can effectively cover a circular area centered around itself, forming a “safety dome” with a radius of 5 km and a protected area of 78.54 km². 

4. Technical Specification

4.1 Track Eye Pro

4.1.1 Overall Performance of the Fusion System  

Parameter Item	Technical Specifications
Radar Detection Range	Shahed-136（rcs0.01 ㎡）：≥5 km Large fixed-wing (RCS 0.2 ㎡): ≥10 km
Recognizable target types	UAVs, airliners, birds, pedestrians, vehicles
Coverage	Horizontal: 360°, Pitch: 0° ~ 90°
AI target recognition accuracy	≥ 98% (for drones)
Protection Class	IP66
Rated Power	1500W
Total Weight	250kg
Operating Temperature	-40℃ ~ +60℃

 

4.1.2 Radar Subsystem (Tracker Pro)

Parameter Item	Technical Specifications
Operating Frequency Band	X Band (9.2 ~ 9.8 GHz)
Scanning Mode	Active Electronically Scanned Array (AESA)
Coverage	Horizontal: 360°, Pitch: 0° ~ 30° (max. expandable to 60°)
Target Capacity	Search (TWS): ≥500; Tracking (TAS): ≥6
Precision	Distance: ≤10 m; Speed: ≤1 m/s; Azimuth: ≤0.5°; Elevation Angle: ≤0.5°
blind spot	≤ 200 m

 

4.1.3 Pan-Tilt-Zoom (PTZ) Optoelectronic Subsystem

Module	Parameter Item	Technical Indicators
Visible Light	sensor	1/1.8″ target surface starlight-level CMOS
	Lens focal length	23 ~ 230 mm HD electric zoom
	Detection Performance	Detection ≥12,000 m, Identification ≥10,000 m (3.5m×2.5m UAV)
Infrared Thermal Imaging	Detector Type	Uncooled Vanadium Oxide (VOx) Focal Plane Array
	Lens focal	23 ~ 230 mm, 10x continuous zoom
	length
	Detection Performance	Detection ≥8000 m, Identification ≥5000 m (3.5m×2.5m UAV)
Servo Turntable	Rotational Speed	Horizontal: ≤120°/s, Pitch: ≤90°/s
	Tracking Accuracy	≤ 0.15 mrad

 

4.2 Interceptor (Thunder)  

Parameter Item	Technical Specifications
Working Radius	5 km
Maximum Level Flight Speed	≥ 350 km/h
Cruise Speed	150 km/h
Service Ceiling	3 km
Control Mode	Autonomous control of the full mission process, supporting manual takeover
Mission Payload	0.4 kg
Operating Temperature	-20℃ ~ +60℃

 

4.3 Command and Control System (Skyshield Nexus)

Functional Dimension	Core Competency Description
Air-Ground Integrated	Integrate multi-source perception networks, coordinate diverse defense measures, and build an all-round, multi-level air-ground
Joint Defense	coordinated protection system.
Full-process closed-loop intelligent decision-making	It covers the entire chain of “reconnaissance – determination – decision – action – review”, relying on the AI autonomous decision-making engine to achieve full automation from detection to interception.
Millisecond level response in complex scenarios	Supports distributed networking of thousands of devices, achieves millisecond-level Object Tracking and threat assessment through high-performance computing power, and effectively responds to swarm attacks.