signalarticles

Flexible Defense for Uncertain Times

January 2002
By Henry S. Kenyon

A software-based access control system offers administrators and planners a secure option for wireless and online communications. Capable of working with legacy technologies, the scalable program forms a layered defense against unauthorized entry or use of network components.

One Pass for All

January 2002
By Henry S. Kenyon

In the near future, access to U.S. naval vessels and facilities will be accomplished with the swipe of a card. The service is issuing smart cards for entry control and record-keeping purposes to all of its personnel. The rollout is part of a larger program to provide the devices for all U.S. Defense Department employees.

Signal Conversion Takes the Fast Track

January 2002
By John Lillington

A new digital signal processing technology originally developed for the commercial world now is being incorporated in military systems where it offers significant improvements over current techniques. Known as pipelined frequency transform, the architecture is a licensable intellectual property of cores, or engines, that can be included in programmable logic devices such as semiconductors or system-on-chip designs. Major defense application areas include advanced radar, signals intelligence, secure wireless communications and electronic warfare.

Information Operations Begin at Home

March 2002
By Vice Adm. Herbert A. Browne, USN (Ret.)

The recent success of network-centric warriors in operation Enduring Freedom has shined the spotlight on information operations. News reports are flush with stories of how allied forces employed information for precise real-time targeting of enemy assets. The results of these operations stand in testimony to their effectiveness: a brutal totalitarian dictatorship overthrown and its terrorist cohorts routed from their places of sanctuary.

Army Cyberwarriors Prepare for Broader Future

March 2002
By Robert K. Ackerman
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The menu for U.S. Army information operations now runs several courses long as the service integrates low-end news activities directed at local populace with high-end cyberspace defense and attack. As all of these elements come together in a common operational mode, the future cyberwarrior may see netwar visualization capabilities that provide cyberspace situational awareness akin to icon-driven battlefield monitoring systems.

Networking System Spins Sensor Web

March 2002
By Maryann Lawlor
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The potential of network-centric operations is growing with the capability to link, interpret, process, manage and share data from multiple sensors in near real time and throughout a battlespace. This information could be delivered directly to a commander's laptop computer to provide a clearer and more complete picture of detected threats.

Shuffling the Spectrum Deck

March 2002
By Henry S. Kenyon

Future military communications equipment may one day be able to detect and use locally available radio spectrum automatically. U.S. Defense Department researchers are developing methods that allow systems to scan for unassigned frequency bands autonomously. These technologies will allow warfighters to deploy quickly anywhere in the world without time-consuming spectrum management and allocation concerns.

Land Warfare From the Sky

March 2002
By Henry S. Kenyon

The U.S. Army has developed an airborne tactical command post that enhances company-level units' situational awareness with real-time voice and data connectivity. Mounted inside a UH-60 Black Hawk helicopter, the center features an integrated command and control system hosting an extensive communications suite and five fully automated workstations linked to a central computer that can operate a variety of battlefield software.

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