Multi-sensor passive drone detection layer · C-UAS

Passive drone detection and classification

colata is a passive, multi-sensor counter-drone (C-UAS) detection layer. It detects, classifies and locates the target. It listens rather than transmits: no radar, no active RF emission, no detection signature.

Built and maintained in Poland.

NCBR / FENG Poligon Innowatora — WITU Field trials: CPSP Ustka (ITWL) PFR IDA 2024
Operational problem

Limitations of today's detection

The growing availability of low-cost drones, including FPV platforms, increases the number of incidents involving breaches of protected airspace, in both military and civilian contexts. Conventional detection methods have clear limitations in this environment.

Radar and EO/IR

Lose effectiveness in urban terrain and against objects with a small radar cross-section.

Radio detection

Fails against platforms with limited or zero signal emission.

Scale and availability

Effective, scalable detection remains hard to access for many facility operators and security systems.

The answer: one layer, three sensors

colata addresses these limitations with a multi-sensor detection layer designed to fuse acoustic, RF and EO/IR data into a single operating picture.

The acoustic layer is working and has been field-trialled. The RF and EO/IR layers are in active development as part of the same data-fusion architecture — further bearing sources feeding the same operator dashboard.

How it works

How passive drone detection works: from signal to located target

01

Detection and classification

The acoustic signature is detected and classified locally, on the device, without transmitting the raw recording.

02

Bearing estimation

The microphone array estimates the bearing (azimuth) to the sound source, with a confidence score.

03

Localisation

Bearings from two or more detectors are triangulated to estimate the target's position.

04

Tracking and integration

Event history and track data go to the operator dashboard and, optionally, to external command systems.

Integration layer

colata interface

Operator view, event history, replay

TAK / CoT

Events on a shared tactical map

Customer C2 systems

Integration with command and facility protection

Detection data fusion
Confidence score
Bearing estimation
Position estimation
Track and event history
Sensor layer

Acoustic network

Jeżyk: site protection · Żółwik: wide-area coverage

RF analysis

Remote ID and radio spectrum — in development

EO/IR channel

Day and thermal cameras for confirmation — in development

colata delivers target detection, classification and position data to decision systems and, where required, to effectors tasked by the user's C2. colata is a detection-only sensor layer and controls no effector. Integration with C-UAS interface standards is planned, depending on end-user requirements.

Ask about integration
Specification

Multi-sensor detection, one platform

Jeżyk — field acoustic detector

Jeżyk

Field node

Acoustic detector for protected facilities.

  • 7-channel, directional microphone array with external ADC
  • On-device local signal processing and classification
  • Bearing (azimuth) estimation, multi-detector localisation support
  • Position (GNSS) and orientation included in the data stream
  • 24V PoE power, approx. 20 W consumption · Ethernet data output
  • Field enclosure, aluminium, Ø 60 cm · kit weight 6 kg
critical infrastructure military facilities ports · airports
Żółwik — compact acoustic detector

Żółwik

Distributed node

Compact detector for distributed networks.

  • 6-channel MEMS microphone array
  • On-board detection and direction finding on a microcontroller (STM32N6, edge AI)
  • Proprietary transmission protocol (LoRa / GSM), mappable to the Jeżyk data format
  • Mounting on streetlights, masts and buildings
  • Weight approx. 250–300 g, enclosure 200 × 115 × 30 mm
cities · streetlights temporary zones distributed networks

RF analysis

In development

Passive radio spectrum analysis and Remote ID reception.

EO/IR (day and thermal cameras)

In development

Target confirmation and classification using day and thermal cameras.

Ask about the specification
Field validation

Ustka field trial results

Multirotor target Single Jeżyk detector: detection and bearing of a commercial Mavic-class drone — approx. 500 m
Piston-engine target Single Jeżyk detector: detection and bearing of a larger Shahed-type target (PLargonia) — over 4.5 km
Localisation Position of the Shahed-type target estimated by correlating detectors, at a range of approx. 2 km
Field conditions Wind, background noise, vegetation limiting acoustic visibility, gunfire sounds, human speech and proximity to the coastline
Measurement source

Operational tests, Central Air Force Training Range (CPSP) in Ustka, April 2026, at the invitation of ITWL (Air Force Institute of Technology).

Signature captured passively, with no emission. Classification and confidence score reported to the operator in real time, as the target approaches.

Krystian Guzowski with a detector in front of a launcher at the Ustka range
Ustka · meeting with Minister Tomczyk
The colata team with the Jeżyk detector at the Ustka range
Ustka · the team and Jeżyk in the field
Detector presentation during the inauguration of Poligon Innowatora
Ustka · meeting with Minister Tomczyk
Operator station during the tests
Operator station in the field
Applications

Dual-use applications: defence and civil security

Diagram: a distributed network of detectors around a field position

Military and border

Jeżyk

Protection of military facilities and critical infrastructure

Several Jeżyk detectors deployed around a protected site — a base, a depot, an infrastructure node. Real-time bearing and position of the target, with no active emission that would reveal the system.

Żółwik

Unattended acoustic sensor network

A network of lightweight, energy-efficient sensors spread over a large area — securing vehicles and halt points and monitoring terrain after forces withdraw: a passive network of unattended ground sensors (UGS) with no personnel on site.

Sound classification

Acoustic event classification at the border

The same sound-classification capability, used beyond drone detection: recognising gunfire, artillery fire and speech in the border zone.

Diagram: detectors around an industrial facility

Civilian

Jeżyk

Protection of ports, airports and industrial plants

Protection of higher-risk facilities in the civilian environment — energy, logistics, ports, airports — integrated with existing facility security systems.

Żółwik

Urban space

Mounted on streetlights and urban infrastructure. Sensors deployed across a city monitor noise levels and detect drones, making use of existing lighting infrastructure.

Sound classification

Protecting orchards from starlings

The same sound classification capability opens up civilian applications beyond drone detection — e.g. detecting birds over farmland or protecting orchards growing fruit such as cherries, given sufficient market demand or a sponsor.

History

From a hackathon to a system tested at a military training range

colata was not created in isolation from reality. The starting point was a distinction from the U.S. Defense Innovation Unit at the NATO-Ukraine Defense Innovators Forum hackathon, where the team built an autonomous drone system capable of detecting and tracking a target without operator control. This opened the way to the PFR IDA 2024 programme, in which the General Staff of the Polish Armed Forces set the team a specific challenge: detecting aerial threats. That is how the first prototype of an acoustic drone detector was born.

The project gained momentum when the problem stopped being abstract — airspace violation incidents showed how much distributed detection systems are needed. The team analysed solutions used in Ukraine and Europe, built its own database of acoustic signatures of various drones and, on that basis, developed two working prototypes — Jeżyk and Żółwik.

In spring 2026 the acoustic layer was field-tested at the Ustka range, at the invitation of the Air Force Institute of Technology (ITWL). Preparations are now under way for the next stage of testing and for extending the system with an RF and EO/IR layer. The project received funding from the National Centre for Research and Development (NCBR) under the European Funds for a Modern Economy programme.

  1. 2024 NATO-Ukraine Defense Innovators Forum, DIU distinction
  2. 2024 PFR IDA, first acoustic detector prototype — in response to the challenge set by the General Staff of the Polish Armed Forces
  3. 2025–2026 Building the acoustic signature database — processing and labelling drone recordings
  4. April 2026 Field trials in Ustka (ITWL)
  5. 2026 NCBR / FENG funding, building the multi-sensor drone detection layer Multi-sensor system for detecting unmanned aerial vehicles (UAVs) using acoustic, radio and vision data fusion
  6. Today Focus on the acoustic layer, with the development of RF and EO/IR layers as the direction for the future
Microphone array during winter field tests
Winter field tests · microphone array
The Jeżyk detector during a meeting with uniformed services
Meeting under the PUSTUŁKA project, Kielce
The colata team during winter field tests
Winter field tests · the colata team
Visit to the Central Office of Measures (GUM)
Visit to the Central Office of Measures (GUM)
The colata team during field tests in August 2026
August 2026 tests · field station
The Jeżyk detector locating an FPV drone during tests in June 2026
June 2026 tests · Jeżyk detector
Disassembled components of the first Jeżyk detector prototype
Assembling the second Jeżyk prototype
Microphones and detector modules prepared for field tests
Test preparations · assembling the microphone channels
Discuss a pilot deployment
Team and background

Polish passive acoustic drone detection technology

2012 Founded in 2012
14yrs Of experience building software for clients in Western Europe and the USA
40eng. Engineers on the codequest team
100% Project team — Polish citizens

codequest backing

  • AI, computer vision, electronics, real-time systems
  • Experience in public tenders for the Polish Armed Forces

Dedicated colata team

  • Product owner
  • AI/ML engineers
  • Electronics engineer
  • Hardware designer
  • Front-end / dashboard engineer
  • Sales and partnerships lead

Proprietary technology

  • Electronics and AI models developed and stored in Poland
  • Proprietary database of drone acoustic signatures
  • codequest spin-off Quantum Quest (MCC, MAVRIC), NATO DIANA accelerator
The Jeżyk detector on a tripod at the Ustka range
Poligon Innowatora · Jeżyk detector
The colata operator dashboard on a field tablet
Poligon Innowatora · operator dashboard
Tests of the first acoustic detector prototype
First prototype tests
The colata stand at the PRE-URC conference in Rzeszów
PRE-URC, Rzeszów · colata stand
Contact

Contact and technical briefing

We invite institutions responsible for protecting facilities, borders and airspace to talk about a pilot and the possibilities of integrating the system.

Krystian Guzowski
Business contact Krystian Guzowski Strategy & Operations Lead
Enquiry form