Science Fiction Dictionary
A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

 

Helmet-Based Sniper Location System

A network consisting of helmet-based smart nodes can provide a platoon of soldiers with a 3D map of enemy shooters. Wireless links between helmets coordinate acoustic gunshot signature information collected by helmet microphones.


(Breadboard sniper locator system on Kevlar helmet)

Retired U.S. Army Lieutenant Colonel Albert Sciarretta, who assesses new military technologies in urban environments for DARPA, is one of the experts who is impressed by the ISIS system: “It’s strong points are that it isn’t limited to locating shots fired in direct line-of-sight, it can pick up multiple shooters at the same time, and it can identify the caliber and type of weapon that is being fired.”

When a high-powered rifle is fired, it produces two different kinds of sound waves. One is the “muzzle blast” that expands outward in a spherical wave from the muzzle. The second is a conical shock wave that is produced by the bullet as it travels at supersonic speeds. Each node of the shooter location system contains an array of four sensitive microphones. If at least three of the microphones in a single node detect the muzzle blast, the information allows the nodes’ microprocessor to calculate the direction that the sound came from. If the same array also detects the arrival time and angle of the bullet shockwave, a simple calculation gives the shooter’s location.

“Because the microphones on the helmet are so close together, the precision is not very high,” Ledeczi says. “However, the nodes are continuously exchanging the times and angles of arrival for these acoustic signals, along with their own locations and orientations. When two or more nodes detect the shot, they can provide the bearing with better than one degree accuracy. The range is typically within a few meters even from as far as 300 meters. The more sensors that pick up the shot, the more accurate the localization.”

The system can even identify the window from which a sniper is firing, even if the sniper is well inside the building at the time.


(Shooter localization system diagram)

In his excellent 2007 book Quantico, Greg Bear writes about a weapon sound tracker. Use the link below to read Bear's comments about his idea.

Sound trackers on the roof could zero in on weapons action and coordinate return fire through UAVs and their only other air support, the Superhawk.
(Read more about Bear's Weapon Sound Tracker)

A final advantage to the real-life helmet-based sniper location system is the cost. Other shooter location systems cost from $10K to $50K per unit and are quite bulky. The new system weighs just a bit more than the 4 AA batteries that power it and can be made for about $1K. From Vanderbilt University via Next Big Future.

Scroll down for more stories in the same category. (Story submitted 3/26/2009)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 1 )

Related News Stories - (" Warfare ")

Sea Drones Attack Russian Fleet
'...autofreighters, and other self-piloting craft.' - Ray Naylor, 2022.

Slaughterbot AI KIller Quadcopter Drones
'The real border was defended by... a swarm of quasi-independent aerostats.' - Neal Stephenson, 1995.

Russia Working On Military Exoskeletons
'...you look like a big steel gorilla...' - Robert Heinlein, 1959.

TALOS Exoskeleton Development Proceeding
'Suited up, you look like a big steel gorilla...' - Robert Heinlein, 1959.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

Science Fiction Timeline
1600-1899
1900-1939
1940's   1950's
1960's   1970's
1980's   1990's
2000's   2010's

Current News

ESTHER Tennis Robot V. Fact (1934) And Fiction (1952)
'THE red tennis robot scooted desperately across the court...'

Japan's LignoSat Space Wood Satellite And Dan Simmons' Treeship
'The Consul remembered his first glimpse of the kilometer-long treeship...'

Skyline Robotics Instantiates Heinlein's 'Window Willie' Skyscraper Robot
'Do you know what window washing used to cost by the hour?'

Drone Bombings In Moscow Foreseen 100 Years Ago
'Once the target is confirmed, it uses an IR laser to send a coded signal back to the parent, clearing it to attack.'

I Didn't Know You Can Already Buy Flesh Putty
'I filled your bullet hole with flesh putty and the lattice.'

'A Sign in Space' Gives Practice In Decoding ET Messages
'... it will be easy to form an alphabet which shall enable us to converse with the inhabitants of the moon.'

Melting Permafrost Endangers Infrastructure
'From the tower's huge octagonal base radiate wide silvery strips...'

EELS Exobiology Extant Life Surveyor For Enceladus
'It was about five feet long... a black bullet head and red camera eyes.'

Lazy Lawyer's Trust In ChatGPT Misplaced
'The Law Society has strict rules on the use of pseudo-intelligent software...'

Paradromics Implant FDA 'Breakthrough Device'
'I used my implant to tell MILLIE what we wanted...'

Mice, At Least, Can Sober Up Quickly
'Then draw some aldodote-vitamin pills from the medic.'

Is It Time For Lunar Farside Telescopes?
'Mount Ambarzumian Observatory, on Farside.'

Spaceflight Vertigo Solved By NASA Releasing The Kraken
"I threw up in my helmet."

TM-62 Loitering Ground Landmine
Runaway movie comes to life!

Helpful Robots In Science Fiction
'If you douse me again... I'm donating you to a city college.'

Lunar Pogo Stick - Retro Technovelgy From 1968
'Lucky touched the leap knob...'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.