Integrated Anti-Drone System · SHIELD SIA

An operational capability, ready now

The ARKA Integrated Anti-Drone System (SHIELD SIA) represents an immediately necessary operational capability, achievable with existing industrial resources in Romania.

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System concept · Distributed battery

A single distributed air-defence battery

Low-altitude attack drones are today's highest cost-effectiveness asymmetric threat. The answer is depth zone-defence — domestically produced and network-deployable at national scale.

The Integrated Anti-Drone System is a modular low-altitude air-defence solution — early detection, automatic identification and engagement at maximum effective range, with absolute inhibition of civilian and friendly aircraft. SIA is not a collection of individual systems; each node is a cell of one integrated organism.

TRACKLOCK
SHIELD SIA — node acquisition view

Operational necessity

Why a networked battery — and why now.

$20–50k
Cost of a Shahed-type drone — versus hundreds of thousands of dollars for a single missile interceptor.
<250 m
Structural blind zone of conventional radar below this altitude — ground clutter + minimum antenna elevation.
1,523 km
Romania's exposed N-E border: Ukraine 649 + Moldova 681 + Black Sea 193 km, plus dozens of strategic objectives.
>99%
Cumulative destruction probability per trajectory across sequential multi-node engagement.
CONTEXT

Conventional point-defence is costly, scarce and cannot cover the extended perimeter of an urban centre or strategic objective. The design philosophy eliminates single-supplier dependency through a national-integrator architecture: ARKA designs the system and manufactures the mechanical, electrical and software structures, while specialised electronic and fire components are procured from multiple interchangeable suppliers — without redesign.

Two modules per node

Each node is two physically separate modules — detection and fire — so recoil never disturbs the optics.

Module 1

Detection & Local C2

M1
Thermal cameraThermal-signature detection at 5 km
4K camera · 30× zoomVisual identification + 120° wide field
16-element microphone arrayShahed engine acoustic detection
Passive RF receiver100 MHz–8 GHz signal detection
Radar5–10 km detection
Redundant edge computingAI/ML pipeline · 2 active-standby units
CommunicationsOptical fibre <1 ms + encrypted wireless backup
Module 2

Fire Execution — FCS

M2
360° motorised gun mountSpeed 120°/s · precision ±0.05° · slew <3 s
35 mm gun + AHEADProgrammable airburst · effective range 3,500 m
Dual-calibre interfaceAccepts 30 mm Romanian / 23 mm without redesign
Full ballistic FCSPrediction +5 s · wind · Coriolis · density correction
Inductive fuze programmingPer-projectile airburst timing
Post-fire correctionClosed-loop recoil sensor
Physical separation 25–50 mComplete recoil-vibration isolation from M1

Two overlapping networks

Every node joins a detection network and a fire network, coordinated by the central C2 — "The Eye".

Network 01

Detection Network

All sensors from all nodes fuse data in real time at C2. Multi-node triangulation sharpens precision, erases individual blind zones and auto-compensates jamming of one node via its neighbours.

  • 3D position from multiple anglessuperior precision
  • Zero blind zones360° coverage guaranteed
  • Electronic-jamming resilienceneighbouring nodes compensate
  • False-positive reductionthrough multi-node confirmation
  • Early warning 15–20 kmvia C2 radar
Network 02

Fire Network

Firepower is coordinated centrally. The system allocates engagements automatically — the node with the optimal angle fires while the others are inhibited, eliminating ammunition waste and friendly fire.

  • Optimal allocationthe node with the most favourable angle has priority
  • Sequential engagement2–3 nodes along the trajectory
  • Anti-saturationN nodes = N simultaneous targets
  • Cumulative kill probability >99%per trajectory
  • Automatic deconflictionzero friendly fire
System advantages

An operational edge.

Multi-layer protection

Combining multiple detection methods for maximum reliability.

Early detection

Detect threats earlier, farther and in any conditions.

Smart decisions

AI-powered fusion for accurate classification and prioritization.

Secure & reliable

Designed for critical missions. Built to perform.

Sensing & detection

Detection methods, working as one.

Method 01
01

Thermal Detection

Detects heat signatures from engines, motors and structure — effective day and night.

5 KMDAY / NIGHT
Method 02
02

Optical Detection

High-resolution imaging and wide field-of-view for visual detection and identification.

4K · 30× ZOOM120° FIELD
Method 03
03

Radar Detection

Long-range detection and tracking of aerial objects in all weather conditions.

5–10 KM RANGEALL-WEATHER
Method 04
04

Acoustic Detection

Detects unique sound signatures of engines and propellers, even beyond visual range.

16-MIC ARRAYBEYOND LOS
Method 05
05

RF Signal Detection

Detects, classifies and locates communication links and control signals across wide frequencies.

100 MHz–8 GHzFPV / DJI
Method 06
06

Data Fusion & AI

All sensor data fused in real-time. AI/ML algorithms classify, track and prioritize threats.

REAL-TIMEAI / ML
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Integrated C-UAS

Complete detection. Total situational awareness.

A fully integrated, multi-sensor system for autonomous detection, classification and tracking of aerial threats — designed and built in Europe.

System capabilities
360° autonomous protection
AI-powered target classification
Multi-layer sensor fusion
Real-time threat prioritization
Precision engagement
Built for demanding environments
Designed & built in Europe

Get in touch. Bring us the challenge.

A product by itself has very limited intrinsic value — its value is directly proportional to how well it solves a client's problems. That's why ARKA offers multiple communication channels.

AddressStr. Panselelor nr. 9, Brașov, 500419, România
HoursMonday – Friday · 9:00 – 17:00