Browse Topic: Electronic warfare

Items (58)

Fighter Jet Armaments

TBMG-3986809/01/2021

MBDA Les Plesis Robinson, France +33 1 71 54 10 00

EW: New Challenges, Technologies, and Requirements

21AERP08_0508/01/2021

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.

More Bang for the Buck: A New Design and Manufacturing Method for Deep Penetrating Bomb Cases

TBMG-3853102/01/2021

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.

Electronic Warfare

21AERP02_0302/01/2021

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

Counter-UAS Technology

TBMG-3852902/01/2021

SRC Inc. Syracuse, NY 315-452-8362

Electronic Warfare: Vying for Control of the Electromagnetic Spectrum

TBMG-3854002/01/2021

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.

Manufacturer Reduces Risk and Improves Quality of Military Radar Receivers

20AERP10_0610/01/2020

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 Receivers

TBMG-3788310/01/2020

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.

Aircraft Protection Systems

TBMG-3789410/01/2020

Northrop Grumman Corporation Falls Church, VA 1-703-280-2900

Quantum Sensor Enables Wide Spectral Coverage

TBMG-3763809/01/2020

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 Aircraft

TBMG-3710906/01/2020

Harbour Industries LLC Shelburne, VT 1-802-985-3311

Electronic Warfare Weapon

TBMG-3606802/01/2020

MBDA Hertfordshire, UK +44 (0)1438 752000

Counter IED System

TBMG-3535610/01/2019

Netline Communications Technologies Ltd. Tel Aviv, Israel

Unmanned Helicopter Drone

TBMG-3535810/01/2019

UAVOS Inc. Mountain View, CA 650-584-3176 www.UAVOS.com

High-Performance, Current-Steering Digital-to-Analog Converter

TBMG-3439505/01/2019

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 2018

18AERP1010/01/2018

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

New Pulse Analysis Techniques for Radar and EW

TBMG-2909006/01/2018

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:

Digital Radar Warning Receiver

TBMG-2908106/01/2018

Northrop Grumman Corporation Falls Church, VA 703-280-2900

Microwave Photonic Notch Filter

TBMG-2737908/01/2017

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 Success

17AERP08_0506/01/2017

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 2017

17AERP0404/06/2017

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 Dominance

TBMG-2668004/01/2017

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.

Pulse Analysis Techniques for Radar and Electronic Warfare

TBMG-2667304/01/2017

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 System

TBMG-2667804/01/2017

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.

Development of an Optically Modulated Scatterer Probe for a Near-Field Measurement System

17AERP04_0804/01/2017

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 Warfare

17AERP04_0604/01/2017

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 Dominance

17AERP04_0104/01/2017

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.

Using High Bandwidth Oscilloscopes to Analyze Radar and Electronic Warfare Systems

TBMG-2609212/01/2016

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.

Advanced Simulation Technology

TBMG-2610112/01/2016

RGB Spectrum Alameda, CA 510-814-7000

Analyzing Radar Signals with Demodulation

TBMG-2524208/01/2016

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 DEMODULATION

16AERP08_0408/01/2016

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.

Next Generation FPGAs for Electronic Warfare Systems

TBMG-2438604/01/2016

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 Warfare

16AERP04_0104/01/2016

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 Training

TBMG-2265808/01/2015

Office of Naval Research Arlington, VA 703-696-5031

Electronic Warfare Technology

TBMG-2188104/01/2015

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 Technology

TBMG-2188804/01/2015

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.

3D Software Helps Development of Vehicle-Mounted Defense Systems

04/01/2014

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 Radios

TBMG-3652412/02/2013

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).

High-Speed Data Recorder for Space, Geodesy, and Other High-Speed Recording Applications

TBMG-1766511/01/2013

A high-speed data recorder and replay equipment has been developed for reliable high-data-rate recording to disk media. It solves problems with slow or faulty disks, multiple disk insertions, high-altitude operation, reliable performance using COTS hardware, and long-term maintenance and upgrade path challenges.

Using Polyimide In 3D Thin Film Multilayer Circuitry

TBMG-1751910/01/2013

Today, the cost and complexity of all platforms and systems in military and defense technologies are being challenged by the need for high functionality in smaller but less expensive architecture, especially in light of current national budget challenges. In the area of RF and microwave electronics it is becoming evident that a move from two dimensional (2D) planar circuitry architecture to three dimensional (3D) thin film multilayer technology can result in dramatic reduction of chip size, increase of operation speed, and lower total module costs.

Pursuing Agile Signals in a Crowded Spectral Environment

TBMG-1657406/01/2013

For the capable RF engineer, continuous- wave (CW) and predictably repeating signals are no great challenge. However, design and troubleshooting become difficult when dealing with agile signals, and the challenges grow when these signals exist in an environment densely populated with similarly agile signals. Examples include applications such as radar, electronic warfare, wireless connectivity, and wireless communications. Indeed, some engineering jobs must be performed where two or more of these technologies intersect — sometimes accidentally and sometimes deliberately.

Reception Requirements for Automotive Radio Systems

2013-01-016404/08/2013

Automotive manufacturers are increasingly demanding for better quality reception from radio designers to provide enhanced audio listening experience for their customers. Audio content can be provided from many sources today, including AM/FM signals, CDs, SD cards, USB flash drive, etc. The modern AM/FM receiver incorporates sophisticated DSP algorithms for signal reception and must not sound dramatically inferior to other audio sources. This paper reviews a few key reception environments that the mobile receiver must cope with, in able to provide good quality reception and to meet the required mobile receiver specifications.

Shatara, Raed S.

Going modular with airborne radar

12AERD0215_0402/15/2012

Innovative approaches to solving the affordability challenge posed by too many specialist airborne surveillance systems. Air forces, armies, and navies around the world are only too aware that airborne surveillance is perhaps the most essential element in today's military inventory. The problem for armed forces that are seeking to invest in new airborne surveillance platforms is a big one: there are plenty of different aircraft and systems available that cover specific mission capabilities, but few of them offer adaptability and mission flexibility. And that means priorities have to be carefully considered when it comes to procurement, with difficult choices having to be made against a backdrop of decreasing affordability.

Gardner, Richard

Thermal Management Techniques for Military Embedded Computers

TBMG-1026406/01/2011

As military programs continue to place an ever growing reliance on embedded computer systems, developments in rugged computer design must continue to advance to keep pace with this demand. This can be accomplished by understanding how individual elements in rugged designs are critical to ensuring a system can perform in harsh environments.

Applying OpenVPX to Single Board Computers

TBMG-1027306/01/2011

For more than two decades, single board computers (SBCs) built on open standards have been largely based on specifications from two preeminent industry organizations, VITA and PICMG. For the 6U Eurocard format, each organization has developed a platform that has provided the basis for standardized SBCs; where VITA introduced the VMEbus standard and derivatives, PICMG introduced CompactPCI bus and its derivatives. Both bus structures use a parallel bus architecture, which has its performance limitations, hence the recent movement to use fabric-based technologies.

Proof-Based Engineering of Real-Time Applications: An RTEdge™ Case Study

2009-01-323211/10/2009

Edgewater's RTEdge™ Platform toolset is a model driven development environment for mission critical real-time systems. Using precise execution semantics and mathematical proof-based analysis, RTEdge™ enables the verification of critical properties of systems with high assurance. This case study will follow the design and implementation life-cycle of a system representing a real-world, mission critical domain: airborne electronic warfare. Using examples and constraints taken from this system, software components will be built to illustrate the principles of architectural conformance, timeliness and testing as executed within a static analysis framework. Using RTEdge™ as an example, this case study will introduce the concepts of model driven development in software and demonstrate how static analysis can be used to verify characteristics of a system that are traditionally left for later stages of development. A demonstration of interactive testing will be performed to illustrate how

New All-Digital RF Technology Simplifies the Radio Environment

TBMG-3651806/01/2009

The concept of a software or “cognitive” radio has been around for about 20 years, and has progressed to the point where open-source software code is available. A cognitive radio is “smart” in the sense that it is continuously aware of changes in radio frequency (RF) spectrum and can decide which frequency and power choices are best at a particular time.

Electronic warfare

AEROSEP05_0509/01/2005

SAE 100 Future look: Today's combat aircraft commonly use electronic warfare (EW) receivers and jammers for self-protection. However, the network-centric battlespace of the future will give truly integrated EW suites broader intelligence and targeting roles. The Sensors Forward initiative of the U.S. Air Force (USAF), for example, makes every airborne sensor a node in a targeting network ready to strike enemy emitters instantly. Other U.S. services and U.S. allies share the vision. Integrating effective, reliable, affordable EW equipment with onboard aircraft systems and global information grids will require advances in EW hardware and battle-management software. ITT Avionics builds and integrates EW suites that detect and defeat radar, IR, and electro-optical air defenses. ITT started development of today's ALQ-211 family of RF countermeasures to protect U.S. Army Apache helicopters from Soviet-model air defenses. The basic system identifies enemy radars, shows their location and

AEROJAN05_0101/01/2005

Software is being designed to predict pending failures, warn pilots, and maybe even fly the plane. As the rapid increase in computing capabilities makes it possible to quickly compare and analyze data, safety engineers and others are focusing more on software to decrease the chance of accidents in the air and on the ground. Prognostics are making big inroads, and developers plan to let the computer take over flight in some instances. All these capabilities are becoming possible because of the dramatic leaps in semiconductors and other electronic technologies. As computing power continues doubling to reach unprecedented levels, programmers are able to do more in real time, more fully making use of input from sensors located throughout the plane.

Military maneuvers

AEROOCT04_0110/01/2004

Electronics and avionics designers put control in the pilot's hand. Commercial airframers have often taken the cue from military aircraft designers in terms of new technology. This scenario is especially true when considering the two biggest current commercial aircraft projects, the Boeing 7E7 and the Airbus A380. Engineers behind the design of both aircraft intend to make wide use of composites, a design preference that gained status via extensive use in the military, primarily for weight reduction. The Teal Group estimates that about 40% of the structural weight of the Eurofighter's airframe is carbon fiber and 10% is glass-reinforced plastic. Boeing followed suit in a way when it announced that the 7E7 will be at least 50% composites by weight, including the majority of the primary structure such as the wing and fuselage. The composite will be essentially the same material that Boeing used in the tail of the 777, which is estimated to contain about 20% of composites by weight.

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