a single array is stated to detect multi-rotor drones at a distance of 500 m or more and fixed-wing uavs at 2,000 m or more, with a stated range figure of 500–2,000 m.

Q: how many targets can multi-array configurations handle?

three arrays in a 360° setup support up to 48 simultaneous targets. twelve arrays support up to 192 uavs.

Q: what microphone array and sampling specifications are listed?

the system uses a 64-channel infineon im72d128v01 mems microphone array with a 20 hz–80 khz frequency band. the acquisition board samples synchronously at 192 khz with 16-bit pcm audio.

Q: what positioning performance is stated?

the listed positioning response latency is 100 ms. single-array azimuth precision is ±3°, and multi-array linkage is stated to achieve meter-level distance error.

Q: how does the system address urban noise and false alarms?

it uses delay-sum and mvdr beamforming, anti-multipath processing, and anti-reverberation ai models. under complex urban noise, the stated uav recognition rate is greater than 90% and the false alarm rate is below 10%.

Q: what integration and environmental details are provided?

the system includes a complete api and demo program for secondary development. it is fanless, operates from -40℃ to 70℃, consumes less than 2.5 w, uses dc5v / usb2.0 power, and weighs under 3.5 kg.

UAV Acoustic Localization System LS8118F

The LS8118F supports passive UAV acoustic detection and localization with a 64-channel MEMS microphone array. Our custom acoustic array PCBA service supports application-specific integration, while our drone detection PCBA factory provides board assembly for UAV monitoring and early-warning systems.

View Product Details Contact Us

LS8118F acoustic microphone array system — Passive acoustic localization hardware for UAV monitoring and early warning.

64 MEMS microphone channels, expandable to 192
20 Hz–80 kHz Wideband acoustic capture range
100 ms Positioning response latency
<3.5 kg Total system weight

System Overview

Passive sensing with real-time visual positioning

The LS8118F is a passive UAV acoustic localization system that only receives external sound signals without any signal radiation. Its 64-channel multi-arm spiral MEMS microphone array captures rotor and drive-motor vibration harmonics across a 20 Hz–80 kHz frequency band, while the acquisition board samples synchronously at 192 kHz in 16-bit PCM.

Delay-Sum and MVDR beamforming, anti-multipath processing, and self-developed anti-reverberation AI models support stable positioning in urban environments. The system outputs real-time 3D spatial coordinates and overlays positioning markers on 1080P camera video for visual early warning.

Full passive architecture: only receives external sound signals without signal radiation, supporting concealed deployment.
Scalable arrays: 3 arrays form closed-loop 360° perimeter defense with up to 48 targets; 12 arrays support up to 192 UAVs.
Integration support: complete API and demo program for secondary development.

Specifications

System specifications

Key parameters from the product information, organized for comparison and deployment planning.

Detection Range

Multi-rotor drone detection, single array≥500 m

Fixed-wing UAV detection, single array≥2000 m

3 arrays, 360°Max 48 simultaneous targets

12 arrays, 360°Max 192 simultaneous targets

Stated range figure500–2000 m

MEMS Microphone Array

Channels64-channel Infineon IM72D128V01

Layout / dimensions460×460×20 mm spiral layout

SNR72 dB

Sensitivity-36 dBfs

Frequency band20 Hz–80 kHz

SPL collection range30–120 dB

Camera and Acquisition

Image sensorIMX298

Camera output1080P@30fps real-time video, synchronous overlay of drone positioning coordinates

InterfacesUSB / Gigabit Ethernet UDP / Serial (triple)

Sampling rate192 kHz

Audio format16-bit PCM

DesignFull-channel synchronous sampling

Physical and Performance

Total weightUnder 3.5 kg

Operating temperature-40℃ ~ 70℃ (fanless)

Power consumptionLess than 2.5 W

Power supplyDC5V / USB2.0

Omnidirectional monitoring range360° azimuth, -20°~90° elevation angle

UAV recognition rateGreater than 90% under complex urban noise

False alarm rateBelow 10% under complex urban noise

Positioning response latency100 ms

Built-in localization algorithmOptimized Delay-Sum + MVDR broadband beamforming, anti-multipath reverberation processing

Collaborative positioning precision±3° single-array azimuth precision; multi-array linkage achieves meter-level distance error

Single-array detection is stated as 500 m or more for multi-rotor drones and 2,000 m or more for fixed-wing UAVs, with a stated range figure of 500–2,000 m.

Decision Guide

Choosing a single array or a multi-array deployment

The array count changes target capacity and perimeter coverage. Use these stated configurations to select the right starting point.

Single Array

Focused sector monitoring

A 64-channel array supports focused sector monitoring with stated detection of 500 m or more for multi-rotor drones and 2,000 m or more for fixed-wing UAVs. Single-array azimuth precision is ±3°, and positioning response latency is 100 ms.

Choose this starting point when the goal is local acoustic detection, camera overlay, and a compact installation under 3.5 kg.

3 Arrays

360° perimeter defense

Three arrays form closed-loop 360° perimeter defense and support up to 48 simultaneous targets. Multi-array linkage is stated to achieve meter-level distance error while maintaining 360° azimuth coverage.

Choose this when a perimeter needs continuous directional coverage and a larger target count than a single array.

12 Arrays

Ultra-large airspace monitoring

Twelve arrays support ultra-large airspace monitoring with up to 192 UAVs in a 360° configuration. The same fanless system operates from -40℃ to 70℃ with power consumption below 2.5 W.

Choose this for large-site planning where target capacity and wide-area acoustic coverage are primary requirements.

For integration planning, use the contact page to discuss interfaces, sampling, enclosure requirements, and multi-array coverage with the supplier.

Use Cases

Deployment scenarios supported by the platform

The product information names airport, military, urban low-altitude governance, and industrial perimeter protection as suitable environments.

Airport and critical airspace

Airport environments can use passive acoustic detection with 1080P camera overlay to support visual early warning without signal radiation. The fanless design and -40℃ to 70℃ operating range suit continuous outdoor monitoring.

Military and sensitive areas

Because the system only receives external sound signals and emits no signal radiation, it is described for military and sensitive-area deployment where concealment matters. The 20 Hz–80 kHz band targets rotor and drive-motor vibration harmonics.

Urban low-altitude governance

Anti-multipath processing and anti-reverberation AI models address building reflection noise. Under complex urban noise, the stated recognition rate is greater than 90% and false alarm rate is below 10%.

Industrial perimeter protection

Three arrays can form a 360° perimeter defense with up to 48 targets; twelve arrays scale to 192 UAVs. The complete API and demo program support integration with site monitoring workflows.

For larger airspace, 12 arrays support up to 192 UAVs in a 360° configuration. For perimeter defense, 3 arrays support up to 48 simultaneous targets.

Performance Validation

Verification points for deployment planning

These listed performance metrics help teams set acceptance criteria before installation.

360° coverage: 360° azimuth and -20°~90° elevation angle, described as full low-altitude coverage without blind area.

Recognition in noise: greater than 90% UAV recognition rate under complex urban noise.

False alarm control: below 10% false alarm rate under complex urban noise.

Response: 100 ms positioning response latency.

Azimuth precision: ±3° single-array azimuth precision.

Multi-array precision: meter-level distance error through multi-array linkage.

Next Step

Request technical details or discuss integration

Use the product page to review the LS8118F configuration, or contact the supplier to discuss interfaces, sampling, enclosure requirements, and multi-array planning.

View Product Details

Frequently Asked Questions

what detection range does a single array provide?

a single array is stated to detect multi-rotor drones at a distance of 500 m or more and fixed-wing uavs at 2,000 m or more, with a stated range figure of 500–2,000 m.

how many targets can multi-array configurations handle?

three arrays in a 360° setup support up to 48 simultaneous targets. twelve arrays support up to 192 uavs.

what microphone array and sampling specifications are listed?

the system uses a 64-channel infineon im72d128v01 mems microphone array with a 20 hz–80 khz frequency band. the acquisition board samples synchronously at 192 khz with 16-bit pcm audio.

what positioning performance is stated?

the listed positioning response latency is 100 ms. single-array azimuth precision is ±3°, and multi-array linkage is stated to achieve meter-level distance error.

how does the system address urban noise and false alarms?

it uses delay-sum and mvdr beamforming, anti-multipath processing, and anti-reverberation ai models. under complex urban noise, the stated uav recognition rate is greater than 90% and the false alarm rate is below 10%.

what integration and environmental details are provided?

the system includes a complete api and demo program for secondary development. it is fanless, operates from -40℃ to 70℃, consumes less than 2.5 w, uses dc5v / usb2.0 power, and weighs under 3.5 kg.

Smart Memories FRAM & Boya Nor Flash-Authorized Distributor | Your Reliable Backup Supplier | ST/SILERGY/MAXIM/Renesas/ADI/Microchip/JRC/Nisshinbo | Safety Stock for Mainstream Meter ICs | PCB assembly service

Quick Links: Solutions; PCB Assembly; Product Center; Inventory Monetization; PCB assembly services; CHIPSTOCK.SHOP

Contact Us: 601 Tianyue Building, No. 110 Shajing Central Road, Bao'an District; info@otomosemi.com; 86-18123677761

Newsletter

Subscribe to access product market trends, priority quotation services and trade cooperation updates.

News&Blog: Blog; All News

UAV Acoustic Localization & Custom Microphone Array PCBA