Defense

August 9, 2013

NAVAIR teams test GPS anti-jamming device on small UAV

The Navy’s Communications and GPS Navigation Program Office (PMW/A 170) mounted a Small Antenna System on an Aerostar unmanned aircraft then placed it in a room lined with signal-absorbent material, where it was subjected to GPS jamming signals at Naval Air Station Patuxent River, Md. Part of an initiative to protect GPS technologies on small unmanned aerial vehicles, the Navy conducted the tests in July to demonstrate how miniaturized GPS protection devices can prevent interruption of the mission-critical global positioning data.

Part of an initiative to protect GPS technologies on small unmanned aerial vehicles, the Navy recently conducted tests to demonstrate how miniaturized GPS protection devices can prevent interruption of this mission-critical global positioning data.

From July 10 to 24, the Communications and GPS Navigation Program Office, headquartered in San Diego, mounted a Small Antenna System on an Aerostar unmanned aircraft, then placed the small UAV in a room lined with signal-absorbent material at the FARM (Facilities for Antenna and RCS Measurements), where it was subjected to GPS jamming signals.

Equipped with model jammers, the FARM facility was used as a stage for the ìenemyî to jam the GPS signal and try to knock the UAV off course, said Eric Stevens, the Unmanned Aircraft Systems Communications and Navigation lead for PMW/A-170, which supplied the antenna system. Knocked off course, the UAV would not be able to relay critical intelligence back to the ground control station ó disrupting communications among U.S. and allied forcesí ships, aircraft and submarines. In a worst-case scenario, GPS jamming could even cause UAVs to crash.

If an enemy is trying to jam, or interfere, with the GPS frequency, this antenna allows us to be able to track and acquire the true GPS satellites even in the midst of this jamming and interference, Stevens said. ìWhat we are doing is demonstrating and quantifying the value of this antenna on small UAVs.

Part of an initiative to protect GPS technologies on small unmanned aerial vehicles, the Navy recently conducted tests on an Aerostar unmanned aircraft at the Naval Air Station Patuxent River, Md., to demonstrate how miniaturized GPS protection devices can prevent interruption of the mission-critical global location data.

PMW/A-170, aligned under the Naval Air Systems Command (NAVAIR) at Naval Air Station Patuxent River, Md., and the Space and Naval Warfare Systems Command in San Diego partnered with Naval Test Wing Atlantic, which supplied the Aerostar, to conduct Julyís testing.† Personnel and teams from the Maritime Unmanned Development and Operations (MUDO); the Navy and Marine Corps Small Tactical
Unmanned Air Systems Program Office (PMA 263); and an engineering team from the Naval Air Warfare Center Aircraft Divisionís Radar and Antenna Systems Department also supported the event.

Personnel involved in the testing were optimistic about the results.

We are hoping to gain some ground and show there are smaller GPS protection solutions out there, said Michelle Jackson, an electronics engineer with experience in testing SAS systems on other platforms.

Equipped with the SAS, the Aerostar will be also used to support a U.S. Army pre-deployment war-game scenario conducted at Fort Polk, La., in August, said Donn Rushing, the project lead for MUDO. Rushing participated in the Fort Polk exercises last year and said the addition of the GPS anti-jamming antenna will give the ìgood guysî an edge this year.

This new anti-jam system decreases the footprint normally required of such a system, which is now ideal for UAV incorporation and service,î Rushing said. ìWhat makes us smarter is knowing our enemies are smart and that we have to stay one step ahead of them. The SAS development is the latest GPS anti-jam capability to aid the war fighter in combating the bad guys.




All of this week's top headlines to your email every Friday.


 
 

 
Air Force photograph by TSgt. Matt Hecht

Laser-based aircraft countermeasure provides ‘unlimited rounds’ against MANPADS

Air Force photograph by TSgt. Matt Hecht A U.S. Army AH-64 Apache attack helicopter prepares to depart Bagram Air Field, Afghanistan, on Jan 7, 2012. The Apache conducts distributed operations, precision strikes against relocat...
 
 

Navy, Air Force advocate for modernizing combat aviation

Top Navy and Air Force officials today told the House Armed Services subcommittee on tactical air and land forces the president’s budget request for fiscal year 2016 will support modernizing combat aviation programs. Cavy Vice Adm. Paul A. Grosklags, principal military deputy to the assistant secretary of the Navy for research, development and acquisitions; Air...
 
 
Air Force photograph by SrA. Victor J. Caputo

McConnell community marks B-29 rollout

Air Force photograph by SrA. Victor J. Caputo A B-29 Superfortress aircraft, named Doc after its nose art, sit on the flightline March 23, 2015, in Wichita, Kan. Doc will be one of two Superfortresses in the world capable of fl...
 

 

Future USS John Finn launched

The future USS John Finn (DDG 113) was launched at the Huntington Ingalls Industries in Pascagoula, Miss., shipyard March 28. During launch the drydock was flooded allowing the 637-foot floating dock to slowly submerge until the ship was afloat. Once the drydock was fully submerged, the ship was pulled by tugs to HII’s south berth...
 
 
Courtesy photograph

First production QF-16 arrives at Tyndall

Courtesy photograph Maintainers begin post-flight checks on the first Lot 1 production model QF-16 after it arrived at Tyndall Air Force Base, Fla., March 11. The aircraft is the first of 13 deliveries to the 82nd Aerial Target...
 
 
Air Force photograph by A1C Dustin Mullen

E-9A Widget, one of a kind

Air Force photograph by A1C Dustin Mullen An E-9A Widget sits on the flight line in front of hangar 5 Mar. 3 at the 82nd Aerial Target Squadron. The Widget is a modified version of the Bombardier Dash-8, formerly Canadian De Ha...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>