White Papers

Critical Techniques for High-Speed A/D Converters in Real-Time Systems

Recently updated, this handbook reviews the markets and technology for A/Ds with sampling frequencies higher than 100 MHz; it discusses sampling and filtering techniques and new FPGA technology for A/Ds; typical high speed A/D products are presented, along with some high-speed data acquisition applications.

Posted in: White Papers, White Papers, Electronics & Computers

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Software Defined Radio Handbook

Software Defined Radio has revolutionized electronic systems for a variety of applications that include communications, data acquisition and signal processing. Recently updated, this handbook shows how DDCs (Digital Downconverters), the fundamental building block of software radio, can replace legacy analog receiver designs while offering significant performance, density, and cost benefits.

Posted in: White Papers, White Papers, Electronics & Computers

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Made in Space: 3D Printing in Zero-G

NASA’s In-Space Manufacturing (ISM) project is responsible for developing the manufacturing capabilities that will provide on-demand, sustainable operations during NASA long-duration missions to destinations such as Mars. The very first step in the initial part of ISM was getting the first 3D printer into space. A 3D printer had never flown in space until the 3D Printing in Zero-G experiment was launched on SpaceX-4 on September 21, 2014. This demonstration was the first attempt to test the effects of microgravity on additive manufacturing in space. The printer was designed and built by Made in Space under a NASA Small Business Innovation Research (SBIR) contract. Learn how NASA and Made In Space worked together to design, develop, and deploy the printer, and how they are taking the next steps to create an Additive Manufacturing Facility in space.

Posted in: White Papers, Manufacturing & Prototyping

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Protecting the Sky - Signal Monitoring of Radio Controlled Civilian Unmanned Aerial Vehicles and Possible Countermeasures

This whitepaper provides insights into the use, specifications, and impact of Radio Controlled (RC) Unmanned Aerial Vehicles (commonly referred to as “drones”). UAVs intended for recreational use are increasingly being used for other (sometimes hostile) purposes. These include: observing/disturbing public events, spying in protected areas, smuggling contraband into prisons, endangering/threatening commercial air traffic, and entering restricted airspace. A technical approach for countering the threats posed by such drones is described, and includes: monitoring the spectrum for relevant signals, identification of frequency-agile RC signals, direction finding, and possible defensive countermeasures.

Posted in: White Papers, White Papers, Aeronautics, Communications, Defense

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Minimum Incremental Motion and Holding Stability in Beamline Positioning

Many beamline applications such as X-ray microscopy and Computed Tomography (CT) require positioning of samples, detectors, and optics in order to perform measurements. Microscopy applications often require imaging of the structure of matter at the sub-micrometer and even nanometer level. Good holding stability, both short-term and long-term, is required because movement of the sample or optics over the time of measurement will cause poor images. Also, the ability to make small mechanical movements on the order of nanometers is often critical for alignment and adjustment of samples or optics.

Posted in: White Papers, Mechanical Components

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Successful Test Management For Systems Engineers

Designing a reliable test strategy requires broad, strategic thinking. The goal of verification is to ensure you release a best-quality system that meets customer expectations as documented in your early design concept and requirements gathering phases. To maximize the value of your test process, test your product objectives early.

Posted in: White Papers, White Papers, Aeronautics, Defense, Electronics, Electronics & Computers

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Delivering Roadworthy Designs: Automotive Electronics Circuit Protection Overview, Applications & Standards

Today’s automotive designs include nearly 100 microprocessors; that number is expected to double in five years. From in-dash displays to connected technologies and safety systems, all onboard electronics require circuit protection to maintain reliability. The major sources of electrical hazards in automotive systems are electrostatic discharge (ESD), switching loads in power electronics circuits, and lightning. Overcoming transient surges that can harm the vehicle’s electronics, whether under the hood or in the cabin, is one of the biggest obstacles of system design.

Posted in: White Papers, Automotive, Electronics, Electronics & Computers

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