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ArticlesPowering On
Countering Cybersecurity Threats Against Unmanned Vehicle Systems
Enhance EMC Testing with Digital IF
Modern electromagnetic interference (EMI) receivers and spectrum analyzers used for compliance and precompliance testing employ digital intermediate-frequency (digital IF) processing technology for signal analysis. Not only does digital IF boost overall instrument reliability, it enables improved amplitude accuracy, increased measurement throughput, and reduced dependence on operator experience level. These benefits result in higher efficiency and lower operating costs. This article discusses the differences between analog and digital IF architectures, and how digital IF enhances both compliance and precompliance measurement processes.
Radio Relays Improve Wireless Products
In order to transmit communications through Earth’s atmosphere, satellites and space vehicles need radio equipment that can operate at higher frequencies than on Earth. These higher frequencies, until recently, have demanded mechanical switches in radio relays. Unfortunately, the mechanical switches had some problems with frequency routing, which inspired NASA to seek more rugged, reliable solutions.
Mobile Networking for Aircraft
Persistent Systems, LLC
New York, NY
212-561-5895
www.persistentsystems.com
The Wave Relay® 5010 Integration Unit, a Mobile Ad Hock Networking (MANET) product from Persistent Systems, LLC, was recently tested by a Department of Defense (DoD) customer. The technology underwent flight testing and evaluation in an Unmanned Aerial System (UAS).
Fusible-Core Polymer
Egmond Plastic
Alkmaar, The Netherlands
+31-72-5614644
www.egmondplastic.nl
Fuel housings for aerospace applications have very complex inner geometries which are not moldable using conventional injection technology. Injection molding specialist Egmond Plastic has combined its fusible-core technology with a PEEK polymer provided by Victrex Polymer Solutions, located in Lancashire, England.
Autonomous Aerial Refueling
Northrop Grumman Corp.
Falls Church, VA
703-280-2900
www.northropgrumman.com
Earlier this year, Northrop Grumman Corporation and the U.S. Navy successfully demonstrated fully autonomous aerial refueling (AAR) with the X-47B Unmanned Combat Air System Demonstration (UCAS-D) aircraft, marking the first time in history that an unmanned aircraft has refueled in-flight.
