Browse Topic: Electronic warfare

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Fighter Jet ArmamentsTBMG-398689/1/2021
MBDA Les Plesis Robinson, France +33 1 71 54 10 00
EW: New Challenges, Technologies, and Requirements21AERP08_058/1/2021
Now a critical part of worldwide defense strategy, Electronic Warfare (EW) must continually adapt in order to meet new threats. To do so, new technology together with emerging standards must be incorporated into EW system designs. Key elements of EW systems are now often combined within a single component, such as the RF System-on-Chip (RFSoC), including signal acquisition, processing, and generation. Hardware, firm-ware, and software have become more complex, increasing risk and expense, and thereby increasing the need for effective, high-level development tools.
Electronic Warfare21AERP02_032/1/2021
Vying for Control of the Electromagnetic Spectrum Over the past decade, preeminent countries involved in major military conflicts mainly focused on asymmetrical warfare - surprise attacks by small groups armed with modern, high-tech weaponry. During that same period, however, near-peer adversaries began attaining impressive electronic warfare (EW) capabilities. As a result, a plethora of new, dynamic threats flooded the EW spectrum, pushing threat detection and analysis to keep pace. Large military forces now face ongoing development and evolution to stay ahead of their adversaries, leading to a need for a more flexible, scalable approach to threat detection, analysis, and response. Even the smallest military can now build powerful weapons systems, given the availability and low cost of advanced electronics with high computing power. The proliferation of technology also created a battlefield where weapons technology undergoes rapid, continuous change. Digital and programmable radio
Electronic Warfare: Vying for Control of the Electromagnetic SpectrumTBMG-385402/1/2021
Over the past decade, preeminent countries involved in major military conflicts mainly focused on asymmetrical warfare — surprise attacks by small groups armed with modern, high-tech weaponry. During that same period, however, near-peer adversaries began attaining impressive electronic warfare (EW) capabilities. As a result, a plethora of new, dynamic threats flooded the EW spectrum, pushing threat detection and analysis to keep pace. Large military forces now face ongoing development and evolution to stay ahead of their adversaries, leading to a need for a more flexible, scalable approach to threat detection, analysis, and response.
More Bang for the Buck: A New Design and Manufacturing Method for Deep Penetrating Bomb CasesTBMG-385312/1/2021
The ~4,450-pound BLU-122 deep penetrating bomb was developed by the U.S. Air Force in 2003, making improvements on the BLU-113 penetrator which would enable it to have significant penetration through hard targets. The weapon incorporates ~780 lb of energetic explosive filling, a higher-strength case made from Eglin steel with an ultimate tensile strength of 245-255 ksi, an impact toughness of 11.5-15.5 ft-lb @ -40°F, and a modified nose shape for increased penetration. Despite the improved case, the BLU-122 possesses only 18-20 feet penetrability in 5.0 ksi strength reinforced concrete.
Counter-UAS TechnologyTBMG-385292/1/2021
SRC Inc. Syracuse, NY 315-452-8362
The Role of Prototype/Test Systems in Next-Generation C5ISR DevelopmentTBMG-3825412/1/2020
Providers of C5ISR solutions often focus on the powerful deployable computer systems that provide superior performance capability. But to get to that end-design, there were prototyping/test systems that played a critical role in their development. It’s an important time for development systems as the military moves to more advanced modular open standard systems. This includes the SOSA/HOST/CMOSS efforts over the OpenVPX architecture, wideband testing via programable software defined radios (SDRs), and much more.
Remotely Piloted Air SystemsTBMG-3788210/1/2020
General Atomics Aeronautical Systems, Inc. San Diego, CA 858-762-6700
Aircraft Protection SystemsTBMG-3789410/1/2020
Northrop Grumman Corporation Falls Church, VA 1-703-280-2900
Manufacturer Reduces Risk and Improves Quality of Military Radar Receivers20AERP10_0610/1/2020
An industry-leading military radar receiver manufacturer needed to deliver radar receivers that met tough new customer specifications. To ensure a quality product, the manufacturer reviewed many aspects of its test strategy, focused on ensuring its radar receivers could meet the new specifications. Radar receiver sensitivity is critical for electronic warfare (EW) applications. A radar receiver that is outside specifications will fail to decipher signals properly from long distances. This is not an option in military applications.
Manufacturer Reduces Risk and Improves Quality of Military Radar ReceiversTBMG-3788310/1/2020
An industry-leading military radar receiver manufacturer needed to deliver radar receivers that met tough new customer specifications. To ensure a quality product, the manufacturer reviewed many aspects of its test strategy, focused on ensuring its radar receivers could meet the new specifications. Radar receiver sensitivity is critical for electronic warfare (EW) applications. A radar receiver that is outside specifications will fail to decipher signals properly from long distances. This is not an option in military applications.
Quantum Sensor Enables Wide Spectral CoverageTBMG-376389/1/2020
A quantum sensor was developed that could detect communication signals over the entire radio frequency spectrum from 0 to 100 GHz. Such wide spectral coverage by a single antenna is impossible with a traditional receiver system and would require multiple systems of individual antennas, amplifiers, and other components.
High-Speed Data Cables for Fighter AircraftTBMG-371096/1/2020
Harbour Industries LLC Shelburne, VT 1-802-985-3311
Development of a Procedure to Correlate, Validate and Confirm Radar Characteristics of Surrogate Targets for ADAS Testing2020-01-07164/14/2020
Surrogate targets are used throughout the automotive industry to safely and repeatably test Advanced Driver Assistance Systems (ADAS) and will likely find similar applications in tests of Automated Driving Systems. For those test results to be applicable to real-world scenarios, the surrogate targets must be representative of the real-world objects that they emulate. Early target development efforts were generally divided into those that relied on sophisticated radar measurement facilities and those that relied on ad-hoc measurements using automotive grade equipment. This situation made communication and interpretation of results between research groups, target developers and target users difficult. SAE J3122, “Test Target Correlation - Radar Characteristics”, was developed by the SAE Active Safety Systems Standards Committee to address this and other challenges associated with target development and use. J3122 addresses four topics. First, it describes standardized equipment and
Silberling, Jordan, Nicols, George, Buller, William, Lenkeit, John
Electronic Warfare WeaponTBMG-360682/1/2020
MBDA Hertfordshire, UK +44 (0)1438 752000
Counter IED SystemTBMG-3535610/1/2019
Netline Communications Technologies Ltd. Tel Aviv, Israel
Unmanned Helicopter DroneTBMG-3535810/1/2019
UAVOS Inc. Mountain View, CA 650-584-3176 www.UAVOS.com
Facility Focus: Georgia Tech Research InstituteTBMG-351429/1/2019
The Georgia Tech Research Institute (GTRI) is the nonprofit applied research division of the Georgia Institute of Technology (Georgia Tech) in Atlanta, GA. Founded in 1934 as the Engineering Experiment Station, GTRI supports eight laboratories in more than 20 locations around the country and performs more than $370 million of research annually for government and industry.
Potential Army Repurposing of Digital Radio Frequency Memory (DRFM) Products for the Electronic Warfare, Tactical EnvironmentF-0075-2019-145475/13/2019
The miniaturization of Digital RF Memory (DRFM) products is paving the way for a new generation of military products with tactical missions never before considered. Although DRFM products have been available and used in various capacities for many years, a reduction in size, weight, power, and cooling (SWAP-C) will allow the repurposing of an already proven technology.
Menees, Brenda
High-Performance, Current-Steering Digital-to-Analog ConverterTBMG-343955/1/2019
A current-steering digital-to-analog converter (DAC) was developed that achieves improved switching times (up to 75% faster) in high-speed (gigahertz), high-resolution (8-14 bits) applications resulting in improvement of spurious free dynamic range (SFDR).
Tech Briefs: October 201818AERP1010/1/2018
Detecting Drones with Doppler-Based Radar Digital Transformation for a Connected Enterprise Using Electromagnetic Brakes to Keep Thrust Reversers in Place Thermostatic Solutions for Temperature Control Applications Bringing RF into the Embedded World: It's Time Compact Power Amplifier Solution for Electronic Warfare Burner Rig Testing of A500® C/SiC Test method simulates, in a laboratory environment, the service conditions ceramic-matrix composite material would experience in turbine engine exhaust applications. Space Debris Orbit and Attitude Prediction for Enhanced and Efficient Space Situational Awareness Developing accurate models to predict the behavior of manmade debris in space could be the key to preventing collisions with satellites. Maintaining Enterprise Resiliency Via Kaleidoscopic Adaption and Transformation of Software Services (MEERKATS) Implementing new technologies to create a more resilient, secure cloud computing environment. Fundamental Aspects of Single Molecule
Bringing RF into the Embedded World: It's TimeTBMG-3302610/1/2018
Embedded systems have been almost entirely digital throughout their long history, while RF and microwave technologies were separate subsystems with no effective interface between the two. For many reasons, this “RF/digital divide” should finally be connected.
High-Performance Computing for the Next-Generation Combat Vehicle18AERP09_059/1/2018
The development of the Next-Generation Combat Vehicle (NGCV) will require technological advancements in many areas, including lethality, protection, autonomy, human-agent teaming, and electromagnetic capabilities. What ties all of these future capabilities together is the need for vast computational resources to support the artificial intelligence (AI) implicit in bringing these advancements to the battlefield. The operating environment of the NGCV will be such that communications will be severely limited, if available at all; systems will be under constant cyber-attack; and adversarial AI may be actively attempting to deceive all sensors - all occurring under severe size, weight, power, and time-available constraints. These factors, and more, are the motivation for developing a strategy of mobile High-Performance Computing (HPC) for the NGCV. Future military vehicles will require capabilities beyond autonomous maneuverability, including intelligence analytics and situational
Henz, Brian J., Shires, Dale
Digital Radar Warning ReceiverTBMG-290816/1/2018
Northrop Grumman Corporation Falls Church, VA 703-280-2900
New Pulse Analysis Techniques for Radar and EWTBMG-290906/1/2018
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 assessment; however, pulse measurements are an especially challenging area for signal analysis due to these factors:
Electric versus Hydraulic Flight Controls: Assessing Power Consumption and Waste Heat Using Stochastic System Methods2017-01-20369/19/2017
Of all aircraft power and thermal loads, flight controls can be the most challenging to quantify because they are highly variable. Unlike constant or impulsive loads, actuator power demands more closely resemble random processes. Some inherent nonlinearities complicate this even further. Actuation power consumption and waste heat generation are both sensitive to input history. But control activity varies considerably with mission segment, turbulence and vehicle state. Flight control is a major power consumer at times, so quantifying power demand and waste heat is important for sizing power and thermal management system components. However, many designers sidestep the stochastic aspects of the problem initially, leading to overly conservative system sizing. The overdesign becomes apparent only after detailed flight simulations become available. These considerations are particularly relevant in trade studies comparing electric versus hydraulic actuation. These two actuation types use
Schley, William
Microwave Photonic Notch FilterTBMG-273798/1/2017
Interference mitigation is crucial in modern radio frequency (RF) communications systems with dynamically changing operating frequencies, such as cognitive radios, modern military radar, and electronic warfare (EW) systems. To protect sensitive RF receivers in these systems, frequency agile RF filters that can remove interferers or jammers with large variations in frequency, power, and bandwidth are critically sought. Unfortunately, an RF bandstop or notch filter that can simultaneously provide high resolution, high peak attenuation, large frequency tuning, and bandwidth reconfigurability does not presently exist. Microwave photonic (MWP) filters are capable of tens of gigahertz tuning and have advanced in terms of performance, but most are limited in stopband rejection due to the challenge in creating a high-quality-factor optical resonance used as the optical filter. To achieve MWP filters with similar performance to state-of-the-art RF filters in terms of isolation bandwidth and
Microwave Photonic Notch Filter Helps Ensure Critical Mission Success17AERP08_056/1/2017
Interference mitigation is crucial in modern radio frequency (RF) communications systems with dynamically changing operating frequencies, such as cognitive radios, modern military radar, and electronic warfare (EW) systems. To protect sensitive RF receivers in these systems, frequency agile RF filters that can remove interferers or jammers with large variations in frequency, power, and bandwidth are critically sought. Unfortunately, an RF bandstop or notch filter that can simultaneously provide high resolution, high peak attenuation, large frequency tuning, and bandwidth reconfigurability does not presently exist. Microwave photonic (MWP) filters are capable of tens of gigahertz tuning and have advanced in terms of performance, but most are limited in stopband rejection due to the challenge in creating a high-quality-factor optical resonance used as the optical filter. To achieve MWP filters with similar performance to state-of-the-art RF filters in terms of isolation bandwidth and
Aerospace & Defense Technology: April 201717AERP044/6/2017
Designing Electronic Warfare to Regain Airborne Military Dominance Certifying Composite Designs for Aerospace and Defense Electric Rockets and the Future of Satellite Propulsion Flat Cable Technology for Aerospace Applications XPONENTIAL 2017 – An AUVSI Experience Pulse Analysis Techniques for Radar and Electronic Warfare Reconfigurable Radio Tracks Flights Worldwide Development of an Optically Modulated Scatterer Probe for a Near-Field Measurement System Using Dempster-Shafer Fusion for Personnel Intrusion Detection Angular Random Walk Estimation of a Time-Domain Switching Micromachined Gyroscope Using Fisher Information Criteria for Chemical Sensor Selection via Convex Optimization Methods Luminescence Materials as Nanoparticle Thermal Sensors
Designing Electronic Warfare to Regain Airborne Military DominanceTBMG-266804/1/2017
For decades, military aircraft have relied on electronic warfare (EW) solutions to protect assets and dominate airspace. The ability of the United States to detect and track aircraft, or avoid detection has played a major role in its ability to project power globally and maintain freedom of operation in the air.
Development of an Optically Modulated Scatterer Probe for a Near-Field Measurement SystemTBMG-266784/1/2017
Near-field radiation patterns are useful in diagnosing antenna array defects, measuring far-field antenna patterns where the far-field is prohibitively far, and locating field concentrations in high power microwave applications, which could lead to material breakdown. There are two categories of near-field measurements: direct and indirect. In a direct measurement, the field from the antenna-under-test (AUT) is directly measured by a probe whereas, in an indirect measurement, the field is inferred from the scattering off of a probe that is placed in the near-field.
Pulse Analysis Techniques for Radar and Electronic WarfareTBMG-266734/1/2017
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 assessment. Pulse measurements are an especially challenging area for signal analysis due to a combination of factors. Fortunately, many of the improving signal processing and analog-digital conversion technologies behind the generation of complex pulse environments also enable new techniques for effective pulse analysis.
Development of an Optically Modulated Scatterer Probe for a Near-Field Measurement System17AERP04_084/1/2017
Using near-field radiation patterns to diagnose antenna array defects. Naval Research Laboratory, Washington, DC Near-field radiation patterns are useful in diagnosing antenna array defects, measuring far-field antenna patterns where the far-field is prohibitively far, and locating field concentrations in high power microwave applications, which could lead to material breakdown. There are two categories of near-field measurements: direct and indirect. In a direct measurement, the field from the antenna-under-test (AUT) is directly measured by a probe whereas, in an indirect measurement, the field is inferred from the scattering off of a probe that is placed in the near-field. A simple direct measurement method is to use an open-ended waveguide connected to a network analyzer as the receiver. The near-field is measured by spatially scanning either the AUT or the receiver. Reflections off of background objects can be filtered out in the time domain. For array applications, antennas that
Pulse Analysis Techniques for Radar and Electronic Warfare17AERP04_064/1/2017
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 assessment. Pulse measurements are an especially challenging area for signal analysis due to a combination of factors. Fortunately, many of the improving signal processing and analog-digital conversion technologies behind the generation of complex pulse environments also enable new techniques for effective pulse analysis. In the past, basic pulse measurements generally were made with swept spectrum analyzers. The intermediate frequency (IF) bandwidth or resolution bandwidth (RBW) of the spectrum analyzer was generally narrower than the effective bandwidth of the pulse, so the spectrum analyzer was used to measure the resulting pulse spectrum. The pulse spectrum could then be used to measure basic signal characteristics such as pulse repetition rate or interval (PRI), duty cycle, power, etc. Spectrum
Designing Electronic Warfare to Regain Airborne Military Dominance17AERP04_014/1/2017
For decades, military aircraft have relied on electronic warfare (EW) solutions to protect assets and dominate airspace. The ability of the United States to detect and track aircraft, or avoid detection has played a major role in its ability to project power globally and maintain freedom of operation in the air. Today, that dominance is being challenged given the rapid advancements in, and widespread availability of, technology for adversaries. In order to make the best use of finite resources, EW solutions must be designed with a focus on flexibility and adaptability to meet quickly shifting threats today and in the future.
Aerospace & Defense Technology: December 201616AERP1212/1/2016
Additive Manufacturing How 3D Printing Will Transform the A&D Support Chain Advances in Lightweight Electronics Protection Conformal Coatings Increase Reliability of Aerospace and Military Assemblies Powering Outer Space An In-Depth Look at Aerospace Battery Technology Using High Bandwidth Oscilloscopes to Analyze Radar and Electronic Warfare Systems Bio-inspired Airborne Infrastructure Reconfiguration (BioAIR) EMI Analysis Software Helps Telescope Group Simulate RFI Mitigation Epitaxial Growth of Rhenium with Sputtering Processing and Characterization of Polycrystalline YAG (Yttrium Aluminum Garnet) Core-Clad Fibers Multi-Scale Analysis of Deformation and Failure in Polycrystalline Titanium Alloys Under High Strain Rates Abrasion Testing of Products Containing Nanomaterials Spectrum Fatigue of 7075-T651 Aluminum Alloy under Overloading and Underloading
Advanced Simulation TechnologyTBMG-2610112/1/2016
RGB Spectrum Alameda, CA 510-814-7000
Using High Bandwidth Oscilloscopes to Analyze Radar and Electronic Warfare SystemsTBMG-2609212/1/2016
Whether for multi-channel analysis, or for wider analysis bandwidth in a measurement, high bandwidth oscilloscopes offer an alternative to traditional spectrum and signal analyzers for both pulsed RF aerospace/defense and I/Q vector modulated communications application measurements. Signals with spectral content beyond 1 or 2 GHz are now being created to support the higher resolution requirements in radar systems and to move the vast amounts of information in new communications systems.
Analyzing Radar Signals with DemodulationTBMG-252428/1/2016
In the electronic warfare milieu, one of the most common RF applications is that of radar systems. Radar, which uses RF energy to determine the range, angle, and/or velocity of objects, detects aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain, among other things. An oscilloscope's demodulation math function is very helpful in analysis of radar signals, so let's look at a couple of examples of how to approach such measurements.
ANALYZING RADAR SIGNALS WITH DEMODULATION16AERP08_048/1/2016
In the electronic warfare milieu, one of the most common RF applications is that of radar systems. Radar, which uses RF energy to determine the range, angle, and/or velocity of objects, detects aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain, among other things. An oscilloscope's demodulation math function is very helpful in analysis of radar signals, so let's look at a couple of examples of how to approach such measurements.
Aerospace & Defense Technology: April 201616AERP044/1/2016
Electronic Warfare Next Generation FPGAs for Electronic Warfare Systems Materials: Composites Managing the Impact of Nanomaterials in Aerospace Manufacturing Aerospace Materials/Manufacturing Turbine Flow Meters Alternative Power Sources Designing a Power Generation System for a More-Electric Aircraft
Next Generation FPGAs for Electronic Warfare SystemsTBMG-243864/1/2016
Designers of virtually all electronic warfare system applications exploit CPUs and FPGAs, each offering unique strengths and advantages for handling a wide range of tasks. This diversity arises from fundamental differences in the devices. FPGAs consist of hardware logic, registers, memories, adders, multipliers and interfaces connected together by the user to perform a specific function. CPUs consist of ALUs, instruction execution engines, cache memory, dedicated I/O and memory ports all connected in a fixed architecture, whose resources are driven by program execution.
Electronic Warfare16AERP04_014/1/2016
NEXT GENERATION FPGAS FOR ELECTRONIC WARFARE SYSTEMS Designers of virtually all electronic warfare system applications exploit CPUs and FPGAs, each offering unique strengths and advantages for handling a wide range of tasks. This diversity arises from fundamental differences in the devices. FPGAs consist of hardware logic, registers, memories, adders, multipliers and interfaces connected together by the user to perform a specific function. CPUs consist of ALUs, instruction execution engines, cache memory, dedicated I/O and memory ports all connected in a fixed architecture, whose resources are driven by program execution. Electronic warfare systems impose some of the toughest restrictions on latency within the landscape of military electronics. For example, systems to defeat RCIEDs (radio controlled improvised explosive devices) must identify a signal that could detonate the device, and then immediately disable that communication through countermeasures. Essential tasks in the chain
Game-Based Naval TrainingTBMG-226588/1/2015
Office of Naval Research Arlington, VA 703-696-5031
Electronic Warfare TechnologyTBMG-218814/1/2015
Military electronic warfare (EW) systems including navigation, radar guidance, terrain mapping and others, require lightweight compact components, with radio frequency (RF) output power levels to several kilowatts typically needed to meet system requirements. As GaN transistor technology advances in frequency and power output, solid state power amplifiers (SSPAs) have begun replacing traveling wave tubes (TWTs) at frequencies up to 6 GHz. The utilization of this technology results in a lower cost and greater efficiency over the life of a product.
Electronic Warfare Development Targets Fully Adaptive Threat Response TechnologyTBMG-218884/1/2015
When U.S pilots encounter enemy air defenses, onboard electronic warfare (EW) systems protect them by interfering with incoming radar signals — a technique known as electronic attack (EA) or jamming. Conversely, electronic protection (EP) technology prevents hostile forces from using EA methods to disable U.S. radar equipment assets.
Avionics/Electronics14AERP10_0210/1/2014
Avionics Heat Up, in a Good Way: As was apparent at Farnborough, if there is a single technology theme that today dominates how aircraft are designed, built, and operated, it is the transformational progress being made in aerospace avionics, and the human-machine interface. The common feature shared by recent aviation platforms is the high level of systems integration, and the way in which information is displayed or made accessible, allowing previously unimaginable levels of situational awareness to be available to pilots and ground controllers. This has greatly eased the pilot workload and enhanced flight safety, especially when flying in poor weather or operating in unfamiliar or hazardous terrain. The transition from analog to digital cockpit displays has been comprehensive, but more recently the development of interactive applications and associated technologies has promoted even more rapid progress, notably with the growing adoption of touchscreens, head-up displays (HUDs), and
Gardner, Richard
Avionics Heat Up, in a Good WayTBMG-2074510/1/2014
The common feature shared by recent aviation platforms is the high level of systems integration, and the way in which information is displayed or made accessible, allowing previously unimaginable levels of situational awareness to be available to pilots and ground controllers. This has greatly eased the pilot workload and enhanced flight safety, especially when flying in poor weather or operating in unfamiliar or hazardous terrain.
3D Software Helps Development of Vehicle-Mounted Defense SystemsTBMG-194194/1/2014
L-3 Communications Linkabit (Melbourne, FL) develops defense communications and electronic warfare systems to protect soldiers and save lives on the battlefield. A division of L-3 Communications, the sixth-largest defense company in the United States, Linkabit focuses on developing systems that safeguard troops in the field by obscuring visibility, jamming radar signals, intercepting communications, and disrupting infrared transmissions.
Automated Testing Ensures Top Performance of Army RadiosTBMG-3652412/2/2013
To keep soldiers safe and the lines of communication open, frequent testing of radios used on the battlefield is imperative. That testing is becoming more automated and efficient with updates to the Communications Electronic Warfare Instrumentation System (CEWIS), a suite of test equipment developed by the Communications Electronic Warfare Branch of the U.S. Army Research Laboratory’s Survivability/Lethality Analysis Direct orate(ARL/SLAD).
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