What is a Weapon Locator system?

A Weapon Locator is a force-protection sensor that locates the source of incoming hostile fire — sniper rifles, machine guns, RPG ignitions — and reports the bearing and range to operators or directly to a slaved weapon station. The Gridbots BAT Weapon Locator differentiates between gun types via spectral signature, supports multi-shot tracking, and outputs RTK-GPS-tagged grid coordinates for command-and-control integration.

How accurate is the Gridbots BAT Gunshot Locator?

The Gridbots BAT delivers ±5 degrees of angular accuracy in both azimuth and elevation, ±4% full-scale distance accuracy, more than 95% detection rate, and a 150 kHz per-channel signal-processing rate — placing it among the highest-precision acoustic gunshot locators in the vehicle-mounted class. Detection latency is below 0.1 seconds from muzzle blast to slew command.

Can the Gunshot Locator be mounted on a vehicle?

Yes. The Gridbots BAT acoustic gunshot finder is engineered for mounting on small, medium, and large platforms — light tactical vehicles, MICVs, MRAPs, patrol boats, fixed perimeter posts, and UGVs. Total system power is under 50 W, IP67-sealed, and operational within 5 minutes of mounting. Direct RCWS cueing output enables one-shot counter-fire.

Gunshot Locator Acoustic Finder Weapon Locator Made in India

Gridbots BAT

Name: Gridbots BAT - Acoustic Gunshot Locator / Weapon Locator System
Brand: Gridbots Technologies

Acoustic Gunshot Locator & Weapon Locator System

Gridbots BAT is a state-of-the-art Acoustic Gunshot Locator and Weapon Locator system that pinpoints the source of hostile fire with extreme accuracy of ±5° in azimuth and elevation, distance accuracy of ±4% full scale, and an effective detection range of 300 to 400 meters.

The system uses a 7-microphone DSP array with sophisticated digital signal processing and time-difference-of-arrival (TDOA) algorithms to extract the muzzle blast and supersonic shockwave signatures of incoming fire — sampling each channel at 150 kHz for sub-microsecond TDOA precision.

Total system power consumption is under 50 W, making the BAT gunshot finder ideal for mounting on small, medium, and large platforms — light tactical vehicles, MICVs, MRAPs, patrol craft, fixed perimeter posts, and Unmanned Ground Vehicles (UGVs). Field deployment time is under 5 minutes.

BAT differentiates between weapon types — sniper rifles, AK-pattern, M4-class, heavy machine guns, and shotguns — by spectral signature, and can be configured to alert only on selected gunshot classes, frequency bands, or threat profiles. The system supports multi-shot tracking for sustained engagement scenarios.

Output is delivered through standard military buses, with a direct cueing line to the platform's RCWS (Remote Controlled Weapon Station), enabling slew-to-cue counter-fire within milliseconds. RTK-GPS-tagged grid coordinates are simultaneously pushed to the command-and-control network for situational awareness.

Designed and manufactured under Make-in-India and Atmanirbhar Bharat defence-procurement initiatives, the Gridbots BAT serves the Indian Army, paramilitary forces, police anti-terror units, and homeland security agencies as a force-protection multiplier.

Gridbots BAT 7-Sensor Acoustic Gunshot Direction Finder Array

ACOUSTIC GUNSHOT LOCATOR

At a Glance — Key Performance

Mission-critical performance figures for the BAT Acoustic Gunshot Locator / Weapon Locator.

300-400METERDetection Range

±5°AZ / ELAngular Accuracy

±4%FSDistance Accuracy

7SENSORDSP Microphone Array

360°COVERAGESpherical Detection

150KHZPer-Channel Sampling

<100MSResponse Latency

95%+DETECTDetection Rate

50WATTPower Consumption

IP67SEALEDAll-Weather Operation

Up to 300–400 Meter Detection

20 Hz - 70 kHz Sound Frequency Response

7-Sensor DSP-Based Processing

Less than 0.1 second to find sound direction and distance

360° Coverage

150 kHz Per-Channel Sampling

Bandpass Filtering for Source Discrimination

High Selectivity

How the Gunshot Locator Works

From muzzle blast to RCWS slew command in under 100 milliseconds — the BAT acoustic gunshot finder follows a deterministic five-stage processing pipeline.

01 Acoustic Capture. Seven precision microphones in a calibrated 3D array continuously sample the acoustic field at 150 kHz per channel across the 20 Hz – 70 kHz band. Sensor positions are factory-locked relative to a known geometric reference frame.

02 Signature Discrimination. Onboard DSP isolates the muzzle blast (omnidirectional pressure pulse) and the projectile's supersonic shockwave (Mach cone) from ambient noise — vehicle engines, wind, rotor wash, and clutter.

03 TDOA Solution. Time-Difference-of-Arrival at each of the 7 sensors is computed to sub-microsecond precision. The 3D direction-of-arrival is solved geometrically; range is derived from blast-to-shockwave delta plus signature attenuation.

04 Classification. A weapon-signature classifier matches the spectral envelope against a library of known firearm signatures — separating sniper-class from automatic-fire, and friendly outgoing from hostile incoming.

05 Cueing & Reporting. Bearing, elevation, and range are pushed simultaneously to the operator HMI, the C2 network (with RTK-GPS grid stamp), and directly to the slaved RCWS — which slews to cue automatically for operator-confirmed engagement.

Mission Profiles

BAT serves the full range of force-protection, counter-sniper, and gunshot-localization missions faced by modern security and defence forces — from convoy escort to fixed-site perimeter defence.

Counter-Sniper

Detect and bearing-fix sniper rifles at extended ranges. Cue the RCWS or designated marksman to the threat axis within 100 ms — denying the sniper a second shot.

Convoy Protection

Vehicle-mounted BAT sensors on lead and trail vehicles localize ambush fire on the move, supporting drive-through-and-respond doctrine.

VIP & Diplomatic Escort

Discreet roof-mounted gunshot locator integrates with armoured vehicles in protective details, alerting the principal's car to bearings and distance of any gunfire event.

Fixed Base & FOB Perimeter

Multiple BAT nodes form a networked acoustic curtain around forward operating bases, generating fused gunshot location with sub-2-meter precision.

Border Outpost Surveillance

LoC and LAC posts use BAT as a 24×7 silent watchman — detecting infiltration fire, signal shots, and small-arms exchange across the FEBA.

Anti-Terror & Police Ops

Tactical units localize active-shooter fire in urban environments, guiding entry teams to the source via the operator HMI.

UGV Force Protection

BAT integrates onto Gridbots ZEUS and TITAN UGVs, giving unmanned ground vehicles a defensive sense of incoming fire and auto-cueing onboard RCWS.

Maritime Patrol

IP67 sealing and 50 W power budget enable installation on patrol boats and OPVs, providing acoustic gunshot detection across littoral and riverine zones.

Range Safety & Training

In training environments, BAT scores live-fire exercises and confirms aim points — turning the sensor into a quantitative range-safety officer's tool.

Features

The BAT Weapon Locator is engineered for harsh battlefield acoustic conditions — engine noise, wind, rotor wash, and dense urban echo are filtered out by the DSP signal chain.

Operational in less than 10 seconds

Operates in any environment [IP67]

Multi-shot direction finder

Track / Locate / Lock modes

Low-signature passive sensor

Weapon-class classification

Up to 300–400 m live coverage

Direction and distance estimation

RTK-GPS based location reporting

Direct RCWS cueing output

Sub-100 ms total latency

Network-fused multi-node operation

Performance Data & Comparative Analysis

Bench-test and field-trial data of the BAT Acoustic Gunshot Locator against the global gunshot-detection class. Figures derived from manufacturer testing aligned with NATO acoustic-signature reference standards.

Detection Range vs Class Average

BAT delivers up to 1.5x the detection range of the vehicle-mounted gunshot-locator class average — extending the protective bubble around the platform.

Detection-to-Cue Latency Pipeline

Total muzzle-blast-to-cue latency stays under 100 ms — slewing the RCWS to threat axis before the shooter can re-engage.

Acoustic Frequency Response

Wideband response from 20 Hz – 70 kHz captures the low-frequency muzzle blast and the high-frequency supersonic shockwave of the bullet's Mach cone with equal fidelity.

360° Detection Coverage

Full spherical coverage with no blind sectors — the 7-sensor array provides equal accuracy across all azimuths and elevations.

Technical Specifications

Complete technical datasheet for the Gridbots BAT Acoustic Gunshot Locator / Weapon Locator system.

PLATFORM & IDENTIFICATION
Model Number	GB-BAT
System Class	Acoustic Gunshot Locator / Weapon Locator / Hostile Fire Detection System (HFDS)
Country of Origin	India (Make in India / Atmanirbhar Bharat)
Manufacturer	Gridbots Technologies Pvt. Ltd., Ahmedabad
Primary Mission	Counter-Sniper, Force Protection, Convoy Defence, FOB Perimeter

DETECTION PERFORMANCE
Angle Accuracy (Azimuth)	±5 degrees
Angle Accuracy (Elevation)	±5 degrees
Distance Accuracy	±4% Full Scale
Maximum Detection Range	300 – 400 meters (mission profile and acoustic environment dependent)
Minimum Effective Range	15 meters
Detection Rate	More than 95%
False-Alarm Rate	Less than 1 per 24 hours (urban acoustic environment)
Coverage	360° azimuth, full hemispheric elevation
Signal-Processing Rate	150 kHz per channel
Total Latency (Blast → Cue)	< 100 milliseconds

SENSOR ARRAY
Number of Sensors	7 precision MEMS / electret microphones
Array Geometry	3D calibrated, factory-locked reference frame
Frequency Response	20 Hz – 70 kHz (wideband for muzzle blast + supersonic shockwave)
Dynamic Range	> 130 dB SPL
Self-Noise Floor	< 28 dBA
Sampling Rate	150 kHz per channel, 24-bit resolution
Bandpass Filtering	Configurable for selective source finding

PROCESSING & INTELLIGENCE
Algorithm	TDOA + Mach-cone analysis + spectral classification
Operating Modes	Track / Locate / Lock
Multi-Shot Tracking	Yes — concurrent threat tracks
Weapon-Class Discrimination	Sniper / Auto / HMG / Shotgun (configurable library)
Friend-or-Foe Filtering	Outgoing-fire suppression via blast direction analysis
Onboard Compute	Hardened DSP + ARM compute module

POSITIONING & OUTPUT
GNSS	RTK GPS (centimeter-grade) with DGPS fallback (sub-meter)
Heading Reference	MEMS IMU + GPS dual-antenna heading
Output Channels	Operator HMI, C2 network, RCWS direct cue
Output Protocols	NMEA, CAN, Ethernet (UDP/TCP), MIL-STD-1553 optional
RCWS Cueing	Direct slew-to-cue output to weapon station
Map Visualization	Real-time bearing line + range arc on operator console

POWER & PHYSICAL
Power Consumption	50 W (typical operating)
Input Voltage	12 / 24 / 28 VDC (vehicle bus compatible)
Standby Power	< 8 W
Mounting	Roof-rail, mast-top, fixed-pole, UGV-mast
Setup Time	< 5 minutes (boresight + zero)
Operational Within	< 10 seconds from cold boot

ENVIRONMENTAL
IP Rating	IP67 — fully sealed, dust-tight, water-immersion protected
Operating Temperature	−20 °C to +60 °C
Storage Temperature	−40 °C to +70 °C
Humidity	5 % – 95 % non-condensing
EMI / EMC	MIL-STD-461F compliant
Shock & Vibration	MIL-STD-810G profiles
Wind Tolerance	Operational up to 60 km/h sustained wind

Integration & Deployment Options

BAT is platform-agnostic. The same sensor head deploys on vehicles, vessels, fixed posts, and unmanned platforms — outputting through standard military buses to existing fire-control infrastructure.

Platform Type	Mount Configuration	Power Source	Typical Output
Light Tactical Vehicle	Roof-rail mount	Vehicle 12 / 24 VDC bus	Operator tablet + RCWS cue
MICV / IFV	Turret-roof on mast	Vehicle 28 VDC bus	Commander HMI + slewable RCWS
MRAP / APC	External mast pylon	Vehicle bus	Crew display + weapon station
Patrol Boat / OPV	Mast-top fixed	Vessel 24 VDC bus	Bridge console + RCWS
FOB / Static Post	Fixed pole mount	AC mains or solar	Watchtower display + alarm relay
UGV (ZEUS / TITAN)	UGV mast	UGV battery bus	UGV autonomy system + RCWS
Networked Multi-Node	Multiple BAT sensors	Each unit independent	Fused C2 picture with sub-2 m precision

Why Gridbots BAT as your Acoustic Gunshot Locator and Weapon Locator?

Designed, manufactured, tested and supported in India — full IPR ownership for export-controlled and Indian-MoD programmes.
7-sensor DSP array with TDOA precision — outperforms single- and dual-microphone gunshot detectors in every accuracy metric.
Sub-100 ms total latency: muzzle blast to RCWS slew-to-cue — denying the shooter a meaningful follow-up engagement window.
Direct fire-control bus output (NMEA, CAN, Ethernet, optional 1553) — drops in to existing armoured-vehicle and naval combat systems.
IP67 sealed, MIL-STD-810G shock and vibration tested, MIL-STD-461F EMI/EMC compliant — battlefield-hardened from the first prototype.
Networked multi-node operation produces fused, sub-2-meter gunshot localization across FOBs, depots, and bases.

Engineering Drawings

CAD reference drawings of the BAT acoustic gunshot locator sensor head and mounting envelope.

Frequently Asked Questions

Common questions about Acoustic Gunshot Locators, Weapon Locators, and the Gridbots BAT system.

Q1. What is an Acoustic Gunshot Locator?

An Acoustic Gunshot Locator is a sensor system that detects, classifies, and pinpoints the direction and distance of a gunshot using two distinct acoustic signatures: the muzzle blast (omnidirectional pressure pulse from propellant gases) and the supersonic shockwave (Mach cone trailing the projectile). The Gridbots BAT acoustic gunshot finder uses a 7-microphone DSP array with Time-Difference-of-Arrival algorithms to deliver ±5° angular accuracy out to 300–400 m, in under 100 milliseconds — fast enough to cue an RCWS for immediate counter-fire.

Q2. What is the difference between a Gunshot Locator and a Weapon Locator?

The terms overlap. Gunshot Locator emphasizes the act of detecting and localizing the gunshot event itself — the bearing, range, and time of fire. Weapon Locator emphasizes the operational outcome — identifying the shooter's position and weapon class so the protected force can respond. The Gridbots BAT serves both functions: it locates the gunshot acoustically and classifies the weapon by spectral signature, then outputs target data for slew-to-cue counter-fire.

Q3. How accurate is the Gridbots BAT?

BAT delivers ±5° accuracy in both azimuth and elevation, ±4% full-scale distance accuracy, and a detection rate above 95 % across the 300–400 m operational envelope. The 150 kHz per-channel sampling rate and sub-100 ms latency place BAT among the highest-precision vehicle-mounted gunshot locators in production globally.

Q4. What weapons can the BAT detect and classify?

BAT detects supersonic small-arms fire — sniper rifles (5.56 / 7.62 / .338 / .50 BMG), AK-pattern automatic fire, M4-class carbines, heavy machine guns up to 12.7 mm, and shotguns. The spectral classifier distinguishes between weapon classes by muzzle-blast signature and shockwave geometry. Subsonic threats (suppressed pistols, certain handguns) are detected via blast signature alone with reduced accuracy.

Q5. Can BAT be mounted on a vehicle?

Yes. BAT is engineered for mounting on light tactical vehicles, MICVs, MRAPs, APCs, patrol boats, fixed perimeter posts, and Unmanned Ground Vehicles. The system draws under 50 W from the platform's 12 / 24 / 28 VDC bus, is IP67 sealed, MIL-STD-810G shock-and-vibration tested, and operational within 5 minutes of mounting. Direct RCWS cueing output enables one-shot counter-fire workflows.

Q6. Does BAT generate false alarms from non-gunshot sounds?

The DSP signal chain rejects fireworks, vehicle backfires, hammer impacts, and door slams via spectral fingerprinting and the absence of a supersonic shockwave. Bandpass filtering further isolates true gunshot events. False-alarm rate in typical urban acoustic environments stays under 1 per 24 hours.

Q7. Can multiple BAT units be networked together?

Yes. Multi-node BAT installations — typical at FOBs, naval bases, and depot perimeters — share detections across an Ethernet or radio mesh, fusing bearings from multiple nodes into sub-2-meter gunshot localization. The networked architecture also provides redundancy and extended coverage envelopes.

Q8. How does BAT integrate with an RCWS?

BAT exposes a direct slew-to-cue output over CAN, Ethernet, or optional MIL-STD-1553 — providing bearing and elevation in fire-control coordinate frames. The platform's RCWS slews to cue automatically; the human gunner retains the final fire decision (operator-in-the-loop), preserving Rules of Engagement and ethical AI design principles.

Q9. Who manufactures the Gridbots BAT?

BAT is designed, manufactured, integrated, and supported by Gridbots Technologies Private Limited, headquartered in Ahmedabad, Gujarat, India — under Make-in-India and Atmanirbhar Bharat initiatives. The company offers full IPR transfer and source-code escrow for Indian MoD and export-controlled defence customers.

Q10. What is the operational temperature and weather envelope?

BAT operates from −20 °C to +60 °C across humidity from 5 % to 95 % non-condensing, with sustained wind tolerance up to 60 km/h. The IP67 sealing protects against rain, snow, dust, and short-term immersion. These envelopes cover the full operational footprint of Indian Army deployments from Siachen and Ladakh to Rajasthan desert and the eastern jungle theatres.

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