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Hardware Design of a High Dynamic Range Radio Frequency (RF) Harmonic Measurement System

Radio frequency (RF) circuit elements that are traditionally considered to be linear frequently exhibit nonlinear properties that affect the intended operation of many other RF systems. Devices such as RF connectors, antennas, attenuators, resistors, and dissimilar metal junctions generate nonlinear distortion that degrades primary RF system performance. The communications industry is greatly affected by these unintended and unexpected nonlinear distortions. The high transmit power and tight channel spacing of the communication channel makes communications very susceptible to nonlinear distortion.

Posted in: Articles, Aerospace, Communications, Joining & Assembly, Mechanical Components, Antennas, RF & Microwave Electronics, Measuring Instruments, Test & Measurement
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Using RISC-V to Simplify Data Logging in Space

Worldwide demand for low Earth orbit satellites is increasing at an unprecedented pace, driven by diverse needs such as faster and more affordable Internet access, and faster revisit rates with finer resolution for imaging data. The satellite payload instruments performing communications or imaging functions are becoming increasingly sophisticated and capable and require the collection of increasing amounts of telemetry data to ensure the safe and reliable operation of the satellite.

Posted in: Articles, Aerospace, Data Acquisition, Power Management, Thermal Management, Mechanical Components, Medical, Patient Monitoring, Semiconductors & ICs, Data Acquisition, Detectors, Instrumentation, Measuring Instruments, Monitoring, Test & Measurement
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Weapons Calibration App

Double Shoot
Ramat Gan, Israel
+972-52-9208000
www.double-shoot.com

Double Shoot, an Israeli company that is pioneering advanced systems for zeroing high accuracy weapons and scoring systems, recently unveiled a unique and innovative smartphone application for zeroing weapons, range scoring, and comparison. The versatile application can be used with a variety of assault rifles and machine guns.

Posted in: Application Briefs, Data Acquisition, Defense, Imaging
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Drone-Elimination Fire Control System

Smart Shooter Ltd.
Kibbutz Yagur, Israel
+ 972-72-3202111
www.smart-shooter.com

Smart Shooter's SMASH fire control system adds digital precision to in-service rifles and ammunition. It has been successfully tested by US Special Operations Forces and other military agencies, and it officially entered operational service with the Israel Defence Forces in early 2018. The latest and most advanced variant – SMASH 2000 Plus – has the capability to lock, track and accurately hit conventional targets as well as small, fast and maneuverable tactical unmanned aerial vehicles (UAVs), day and night.

Posted in: Application Briefs, Aeronautics, Aviation, Data Acquisition, Defense, Imaging, Data Acquisition, Detectors, Software
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Aircraft Parachute Recovery Systems

BRS Aerospace
South St. Paul, MN
651-457-7491
www.brsaerospace.com

BRS Aerospace has engaged Wichita State University's National Institute for Aviation Research (WSU-NIAR) to develop testing protocols for evaluating the safety and performance of aircraft parachute recovery systems in General Aviation (GA) and Vertical Take-Off and Landing (VTOL) aircraft. Working with WSU-NIAR's Crash Dynamics and Virtual Engineering laboratories, BRS Aerospace will develop whole aircraft parachute recovery system Supplemental Type Certificates for a range of existing general aviation aircraft and approvals for new models currently under development in addition to advanced VTOL technology.

Posted in: Application Briefs, Aeronautics, Aviation, Defense, Mechanical Components
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Deployable – Instrument Landing System

Thales Group
Cedex, France
+ 33(0)1 57 77 86 26
www.thalesgroup.com

The United States Air Force's (USAF) activities to establish air superiority and support ground combat units often require the use of secure airfields in remote and challenging areas. Thales Deployable – Instrument Landing System (D-ILS), a compact and movable variant of the standard ILS, can help them accomplish this mission.

Posted in: Application Briefs, Aeronautics, Aviation, Defense, Mechanical Components, Instrumentation
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Multirole Utility Helicopters

Airbus Helicopters
Marignane Cedex, France
+33 (0)4 42 85 60 51
helicopters.airbus.com

Airbus Helicopters will be providing an additional four H225M (previously known as the Eurocopter EC725) multirole utility helicopters to the Royal Thai Air Force (RTAF) as part of their fleet strengthening program. This follow-on order will bring the RTAF's H225M fleet up to 12 units by 2021.

Posted in: Application Briefs, Aeronautics, Aviation, Defense, RF & Microwave Electronics
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Novel Characterization Methods for Anisotropic and Mixed-Conduction Materials

State-of-the-art electronic and optoelectronic devices require electronic materials with specialized properties that cannot be characterized with standard methods, or that must be characterized with extra precision. As a result of this research, the following new materials characterization methods have been developed:

Posted in: Briefs, Aerospace, Computers, Electronics, Electronics & Computers, Photonics
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Circuit Models for Robust, Adaptive Neural Control

This project seeks to reproduce the neural circuits used by the nematode Caenorhabditis elegans for locomotion. Caenorhabditis elegans is a small (~1.2 millimeter) nematode found in rotting fruit in many parts of the world. It feeds on bacteria and is neither parasitic nor pathogenic. Although capable of sexual reproduction, most laboratory strains reproduce primarily as self-fertilizing hermaphrodites, with each adult hermaphrodite producing approximately 300 progeny (Figure 1).

Posted in: Briefs, Aerospace, Physical Sciences, Instrumentation, Test & Measurement
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Evaluation of Aeronautical Design Standard – 33 Using a UH-60A Black Hawk

In 1982, the U.S. Army Aeroflightdynamics Directorate (AFDD), then assigned under the U.S. Army Aviation Systems Command (AVSCOM), began development of a new handling qualities specification for military rotorcraft. This effort resulted in the U.S. Army's initial Aeronautical Design Standard–33 (ADS-33A), “Handling Qualities Requirements for Military Rotorcraft,” published in May 1987. It was initially applied to the RAH-66 Comanche Helicopter program, meaning the handling qualities requirements generally related more to scout and attack classes of rotorcraft. As more data became available and lessons learned emerged from using ADS-33A, refinements were implemented into ADS-33B and ADS-33C).

Posted in: Briefs, Aerospace, Data Acquisition, Instrumentation, Test & Measurement, Transportation
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