Abstract black and white digital waveforms resembling sound or data visualization against a black background.
Black background with the white text 'VIDAR' and the smaller text 'PASSIVE ACOUSTIC DRONE DETECTION' beneath it.
A drone flying above a ground-based antenna, with concentric circles radiating outward against a black background.

Passive operation. No RF emissions,

  • No RF emissions so the system is invisible to electronic support receivers. Operates in jammed or restricted spectrum.

Distributed microphone arrays

A 3D geometric wireframe model of a cube with dotted lines and nodes on a black background, illuminated by small white lights.

  • Linear or grid layouts with overlapping coverage. TDoA from multiple nodes gives accurate localization. Scale by adding nodes.

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Edge processing

  • Features are computed on each node. Only lightweight tracks and events leave the node. Low latency and resilience when backhaul drops.

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AI classifies threats in real time

  • Model trained on rotorcraft acoustic signatures separates drones from environmental sounds. Confidence scoring and visible false alarm gating.

Real time acoustic intelligence. Edge orchestrated. Offline first.

Map screen with tracked drones near a border, showing active threats, drone positions, and system status.

Listen

  • Multi-mic node captures wideband audio and extracts robust features on device.

Localize

  • Neighboring nodes synchronize time and compute time difference of arrival to fix position and heading.

  • Edge model assigns class and confidence, then publishes a track to the mesh and to your C2 when available. Works fully offline.

Classify and track

Book a field demo

Dual use by design

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Defense

Early warning for frontline units, special ops, and mobile teams — without revealing position.

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Border Security

Persistent, passive surveillance for remote areas and sensitive border zones.

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Critical Infrastructure

Non-disruptive drone detection for airports, power plants, and other protected facilities.

Coverage planner

Every site is unique. We size and tune to your environment.

    • Detection range and false alarms depend on ambient noise, wind, terrain and mission profile. We deploy to order. We run a short site survey, then design the node layout and tune thresholds for your risk tolerance.

    • Node spacing and layout for your perimeter

    • Expected detection ranges by drone class

    • Latency budget and alert policy

    • Bill of materials and install plan

    • On premise for defense and critical infrastructure. Edge first, air gapped or private network, signed updates, full data control.

    • Cloud option for civil customers. Fleet management, analytics and backups with secure sync when connectivity returns.

    • Perimeter length, site type urban or rural, typical noise sources, wind class, power options and any C2 integrations.