White Papers

Performance Characteristics of Digital Frequency Discriminators

Digital frequency discriminators are key components of instantaneous frequency measurement (IFM) receiver systems as well as many other complex electronic warfare (EW) systems. However, to obtain optimum results it is essential to match DFD performance levels to a specific application. DFDs are integral components of IFM receiver systems; they may also be imbedded into a wide range of military systems such as radar warning receivers (RWRs), electronic countermeasures (ECM) systems, and electronic support measures (ESM) platforms, where they help provide instantaneous frequency measurement capability.

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High-Speed Switched Serial Fabrics Improve System Design

Recently updated, this handbook reviews the development of switched gigabit serial fabrics to enhance the VMEbus and PMC mezzanines; the role of FPGAs in implementing this technology; and, finally, how some of the latest VXS, XMC, OpenVPX, PCIe, and AMC products can be used in high-speed data acquisition, recording, and software radio systems.

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High-Speed, Real-Time Recording Systems

Recently updated, this handbook reviews some of the techniques and features that are widely desired in a high-speed, real-time recording system. Among others, these include the use of a non-proprietary file system, the use of a client-server architecture, and the presence of a user-friendly API (Application Programming Interface) for integrating the recorder into a larger system.

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Putting FPGAs to Work in Software Radio Systems

Recently updated, this handbook reviews the latest FPGA technology and how it can be put to use in software radio systems. FPGAs offer significant advantages for implementing software radio functions such as digital downconverters and upconverters. These advantages include design flexibility, higher precision processing, lower power, and lower cost.

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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.

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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.

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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.

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