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Magazine

Aerospace & Defense Technology: August 2022

2022-07-28
Evaluation and Test Requirements for Liquid Rocket Engines This Standard establishes test and evaluation requirements related to the development, qualification (or certification), and acceptance (flight production unit) of liquid propellant rocket engines and associated propulsion systems. GPS Radio Occultation and Ultraviolet Photometry-Colocated (GROUP-C) Early Orbit Testing Results After routine flight, capture, and installation, GROUP-C underwent Early Orbit Testing to verify its performance prior to science operations.
Standard

Data Dictionary for Quantities Used in Cyber Physical Systems

2022-06-03
WIP
AS6969C

This data dictionary provides definitions for quantities, measurement units, reference systems, measurands, measurements and quantity modalities commonly used in the command and control of cyber physical systems. A cyber physical system is an engineered system that is built from, and depends upon, the seamless integration of computational algorithms and physical components. Cyber physical systems are often interconnected via data links and networks. The term encompasses intelligent vehicles and devices that operate in any environment, including robotic and autonomous systems.

Magazine

Aerospace & Defense Technology: June 2022

2022-06-01
Designing for Space and Other Extreme Environments The Next Generation of Mission-Critical Communications Infrastructure is Here Designing Transportable, High-Performance AI Systems for the Rugged Edge Digitalization in the Aerospace Sector From Product Design to Manufacturing & Operations 3D Printing Metal Parts on a Ship What Does the Navy Require to Make the Dream a Reality? Pushing the Boundaries of RF Passive Hardware with Additive Manufacturing What is Pulse Shaping? Unmanned Aircraft Systems to Support Environmental Applications within USACE Civil Works The U.S. Army Corps of Engineers (USACE) has identified a number of research and development (R&D) opportunities to help reduce disaster risks, including cost-efficient technology, such as un-manned aircraft system (UAS) technology for accurate, detailed, and timely two-dimensional and three-dimensional monitoring of coastal and riverine landscapes.
Technical Paper

A Robust Navigation Solution to Enable Safe Autonomous Aerospace Operations

2022-05-26
2022-26-0016
The world is seeing a rise in demand for UAVs due to their versatile applications and aptness for widespread use. GPS signal is a critical input for safe and accurate navigation of UAS/UAV. It is now being globally recognized that The GPS (Global Positioning System) is susceptible to jamming and can be suppressed or lost when in urban canyons and dense metro locations. ...It is now being globally recognized that The GPS (Global Positioning System) is susceptible to jamming and can be suppressed or lost when in urban canyons and dense metro locations. ...For both defense and commercial enterprise applications, GPS jamming continues to be a GAP and a barrier to FULL BVLOS autonomous drone operations. With an increasing number of UAV users relying on precise location services to carry out their everyday tasks, public safety and the country’s defense positions (especially at border regions) would be jeopardized if the GPS was to be interfered with or even shut down intentionally or accidentally.
Magazine

Aerospace & Defense Technology: April 2022

2022-04-01
Artificial Intelligence in the Battlespace Key Considerations for a New Way of Fighting War Machining Beryllium Electrified Propulsion for Aerospace Where to Start The Future of Managing Mission-Critical Systems Improving Battlefield Connectivity for the Modern Warfighter How to Test a Cognitive EW System Molded RF Materials for Hypersonic Sensors and Seekers AUVSI XPONENTIAL Multimode Optical Fiber Sensing Although the vast majority of fiber optic strain sensors use single mode fiber, multimode fiber has a higher nonlinear threshold that enables higher light levels and lower noise, while the diversity of spatial modes can be used to develop sensors that are inherently immune to signal fading. Autonomous and Resilient Management of All-Source Sensors for Navigation Assurance As the number and type of sensors informing a system increases, so does the probability of corrupting the system with sensor modeling errors, signal interference, and undetected faults.
Standard

Communications and Navigation Equipment

2022-03-21
CURRENT
ARP4102/6A
The equipment includes: a Communications: Ultra high frequency (UHF), very high frequency (VHF), and high frequency (HF) radios, cabin/service interphones, public address (PA), select call (SELCAL), call select (CALSEL), satellite communications (SATCOM), and controller pilot data link communications (CPDLC). b Navigation: Very high frequency omnidirectional range (VOR), tactical air navigation (TACAN), automatic direction finder (ADF), distance measuring equipment (DME), instrument landing system (ILS), markers (MKR), very low frequency (VLF), inertial navigation systems (INS), inertial reference systems (IRS), global navigation satellite system (GNSS), global positioning system (GPS), low range radio altimeter (LRRA), and attitude heading reference system (AHRS). c Weather radar. d Data link: Company, Air Traffic Control (ATC), transponders (Mode-S), controller pilot data link communications (CPDLC), and others.
Technical Paper

Estimation of Indian Regional Navigation Satellite System Receiver’s Position Accuracy in Terms of Statistical Parameters

2022-02-02
2022-01-6000
And it has an individual satellite constellation with seven satellites having a footprint over the Indian subcontinent whereas the Global Positioning System (GPS) satellite constellation has 24 satellites covering the entire globe. NavIC’s IGS (IRNSS-GPS-SBAS) receiver is capable of receiving signals from 7 Indian Regional Navigation Satellite Systems (IRNSS) satellites, 12 GPS satellites, and 2 Satellite-Based Augment System (SBAS) Satellites. ...NavIC’s IGS (IRNSS-GPS-SBAS) receiver is capable of receiving signals from 7 Indian Regional Navigation Satellite Systems (IRNSS) satellites, 12 GPS satellites, and 2 Satellite-Based Augment System (SBAS) Satellites. As part of the NavIC user segment’s evaluation, estimation of the NavIC receiver’s position accuracy is an absolute necessity and will be a preliminary step towards the research of Differential NavIC. ...The high-level hypothesis in NavIC position accuracy is similar to the GPS accuracy. An attempt is made in this article to compare the NavIC Receiver’s IRNSS signal position accuracy in two different scenarios.
Magazine

Aerospace & Defense Technology: February 2022

2022-02-01
What system Designers Should Know About MOSA Standards Microtube Technology A Catalyst for Next-Gen Aerospace Thermal Control Space Industry Test Challenges Advancing Metrology at Mach Speed Drone Mounted Inspection Breaks Barriers for F-35 RF Technology Helps Connect Avionics Systems Using Open-Cavity Plastic Packages in Avionics Applications Electronic Prognostics - A Case Study Using Global Positioning System (GPS) Prognostic health management (PHM) of electronic systems presents challenges traditionally viewed as either insurmountable or not worth the cost of pursuit, but recent changes in weapons platform acquisition and support requirements has spurred renewed interest in electronics PHM, revealing possible applications, accessible data sources, and previously unexplored predictive techniques.
Standard

Data Dictionary for Quantities Used in Cyber-Physical Systems

2021-12-15
CURRENT
AS6969B
This data dictionary provides definitions for quantities, measurement units, reference systems, measurands, measurements, and quantity modalities commonly used in the command and control of cyber-physical systems. A cyber-physical system is an engineered system that is built from, and depends upon, the seamless integration of computational algorithms and physical components. Cyber-physical systems are often interconnected via data links and networks. The term encompasses intelligent vehicles and devices that operate in any environment, including robotic and autonomous systems.
Magazine

Aerospace & Defense Technology: October 2021

2021-10-01
Developing Object Detection Systems for Autonomous Underwater Vehicles Developing Thermoplastic Composites for Use in Commercial Aircraft An Automated System for Multi-Physics Modeling Taking the Tactical Cloud with You Small Form Factor, Modular Data Centers at the Edge of the Battlefield Remanufacturing Reimagined How Selective Electroplating Extends Service Life and Reduces the Cost of Aerospace Components Satellite Paves the Way for Improved Storm Tracking Solar-Powered Satellite Hardware in Orbit Impact of Satellite Intelligence, Surveillance and Reconnaissance on Modern Naval Operations Determining whether afloat availability of satellite ISR, a technology that is relatively new, fundamentally changed naval operations and if so, to what degree. 3D Data Acquisition Platform for Human Activity Understanding Implementing motion capture devices, 3D vision sensors, and EMG sensors to cross validate multi-modality data acquisition and address fundamental research problems involving the representation and invariant description of 3D data, human motion modeling and applications of human activity analysis, and computational optimization of large-scale 3D data.
Magazine

Aerospace & Defense Technology: September 2021

2021-09-01
Pulse Plasma Nitriding for Aerospace Application Ruggedization of Electronics for Deployed Military Environments Migrating Advanced Signal Processing Technology to Rugged SFF Platforms Radar Recording Proves Next-Level System Performance As radar and electronic warfare systems contend with an increasingly crowded environment, recording tests, interactions, and conflicts provides insight that can help assure future triumphs. > Facing 5G New Radio (NR) Test Challenges Communicating Via Long-Distance Lasers The Purpose of Mixed-Effects Models in Test and Evaluation The simplest version of a mixed model-the random intercept model, where so-called random effects represent group-wide deviations from a grand mean-can account for day-to-day deviations in system performance while still allowing the results to be generalized beyond the few days of observed testing.
Standard

COMMON TERMINOLOGY AND FUNCTIONS FOR SOFTWARE DISTRIBUTION AND LOADING

2021-08-11
CURRENT
ARINC645-1
This document provides airlines, airframe manufacturers, aircraft equipment suppliers, and others with information that is specific to data, software, and ground tools used in aviation configuration and data management. As a starting point, this document provides guidance on: Which standard to use in specific situations The use of and how integrity checks should be applied Common terminology in airborne software management Since airplanes started using software controlled hardware, there has been a need to standardize processes and terminology. This document is the centroid to which other software standards are related.
Standard

GUIDANCE FOR DISTRIBUTED RADIO ARCHITECTURES

2021-07-15
CURRENT
ARINC678
The purpose of this document is to evaluate Communication, Navigation, and Surveillance (CNS) Distributed Radio architectures and the feasibility of distributing the RF and systems processing sections to ensure the following: Reduce cost of equipment Reduce Size, Weight, and Power (SWaP) Ease of aircraft integration Growth capability built into the design Maintain or improve system availability, reliability, and maintainability It provides a framework to determine whether it is feasible to develop ARINC Standards that support CNS distributed radio architectures.
Magazine

Aerospace & Defense Technology: June 2021

2021-06-01
Advanced CT Inspection and Data Analysis Designing for the Connected Battlespace Engineering an Aircraft Hydrogen Powertrain Open System Software for Critical Applications Making Fully Digital Beamforming for Radar and Electronic Warfare Applications a Reality Defeating Commercial Drone Threats with Software Defined Radio Quantifying Eye Movement Trajectory Similarity for Use in Human Performance Experiments in Intelligence, Surveillance, and Reconnaissance (ISR) Research Using ScanMatch, a Matlab software package, to determine the similarity of two strings of eye tracking data provides useful background and recommendations for potential applications in Intelligence, Surveillance, and Reconnaissance (ISR) research. Stochastic Surveillance and Distributed Coordination Designing fast and unpredictable motion strategies for robotic surveillance agents in complex environments using Markov chain modeling and optimization methods.
Magazine

Aerospace & Defense Technology: April 2021

2021-04-01
Developing a 6DoF Aircraft Munitions Optical Tracking System Plasma Nitride Surface Hardening of Titanium for Aerospace and Armament Applications The Future of Aircraft Electrification Shielding Aerospace Systems from Electromagnetic Interference Improving Transmit/Receive Module Test Accuracy and Throughput Army Detects Broadest Frequencies Ever with Quantum Receiver A Comparative Evaluation of the Detection and Tracking Capability Between Novel Event-Based and Conventional Frame-Based Sensors This research establishes a fundamental understanding of the characteristics of event-based sensors and applies it to the development of a detection and tracking algorithm. Sensory Integration Balance Deficits in Complex mTBI: Can Early Initiation of Rehabilitation with Wearable Sensor Technology Improve Outcomes?
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