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RF & Microwave Electronics

An Integrated Framework for Complex Radar System Design

Modern radar systems are complex and depend heavily on advanced signal processing algorithms to improve their detection performance. At the same time, the radio front-end must meet...

Articles
Defense

Modelling and Simulation Tools for Systems Integration on Aircraft

The provision of integrated modeling, simulation and optimization tools to effectively support all stages of aircraft design remains a critical challenge in the aerospace...

Articles
Aerospace

Pulse Analysis Techniques for Radar and Electronic Warfare

Pulsed signals are widespread in radar and other electronic warfare (EW) applications, and they must be accurately measured for manufacturing, design of countermeasures, and threat...

Briefs
Sensors/Data Acquisition

Angular Random Walk Estimation of a Time-Domain Switching Micromachined Gyroscope

The primary metrics that prohibit the use of microelectromechanical systems (MEMS) gyroscopes for navigation-grade inertial navigation units (IMUs) are angle...

Briefs
Test & Measurement

Measuring Impact Damage to Toughened CFRP Laminates with Time Domain Reflectometry

Laminated Carbon Fiber Reinforced Polymer (CFRP) composites are very effective in weight saving in aeronautical structural components. For these laminated...

Articles
Test & Measurement

Testing Modern Radios

Several techniques are now being employed to ensure efficient communications across the chaotic radio spectrum. Chief among them is Software Defined Radio (SDR), which uses software to dynamically control communications...

Briefs
Test & Measurement

Characterization of Ceramic Composite Materials Using Terahertz Nondestructive Evaluation Techniques

This work describes the use of nondestructive evaluation (NDE) techniques to characterize defects such as rust, voids, etc. in materials,...

Articles
Test & Measurement

An Advanced Circuit Protection Approach for RF Interfaces

One aspect that sets circuit protection for radio frequency (RF) apart from other types of applications is the range of frequencies in which RF circuits operate. With abbreviated...

Application Briefs
RF & Microwave Electronics

Measuring Radar Cross Section with Handheld VNAs

Radar cross section (RCS) is the measure of an object's ability to reflect radar signals in the direction of the radar receiver, i.e. it is the measure of the ratio of backscatter per...

Briefs
Test & Measurement

Analysis of Clustering Tools for Moving Target Indication

Current and future forces operating in urban environments need the capability to detect slow-moving personnel inside buildings. To accomplish this, a time-domain approach was developed that uses a low-frequency, ultra-wideband (UWB) radar with a transmit pulse capable of penetrating...

Articles
Aerospace

Fiber Interferometry for Testing Military Avionics

Fiber-optic networks have benefited from nearly 20 years of continuous expansion (notwithstanding the brief, yet surprisingly quiet period from 2002 to 2005). For terrestrial networking,...

Briefs
Physical Sciences

Improvements in Measurement of Permeability and Permittivity

The two-transmission method is an improved method of determining, from microwave measurements, the complex permeability and complex permittivity of a sample of a material typified...

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