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Telehealth→ June 2014
Measuring heart rate and blood oxygen levels for portable medical and wearable devices
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The changes occurring in the medical and fitness fields, along with their associated electronic and wearable devices, can be called truly revolutionary. The demands of today’s healthcare device markets are many, varied, and challenging. Devices that were once primarily found in hospitals are now use... [Mixed signal→ November 2014The art and science of RF and mixed-signal design
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Over the past few decades, mixed-signal integrated circuit (IC) design has been one of the most exciting and technically challenging segments of the semiconductor industry. Despite all of the advances that have occurred in the semiconductor industry over that time span, the one constant need is stil... [FPGAs→ January 2015Beamforming: FPGAs rise to the challenge
Signal processing→ October 2018Newer 28 nm ADCs enable next-generation EW receiver systems
Sensors→ September 2014Passive IR sensor front-end design
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Conventional passive infrared (PIR) sensor application circuits contain numerous bulky passive components. Shrinking the electronics down to the size of the sensor element requires some new design thinking. This article describes an approach using digital signal processing and closed-loop control of... [DSP→ June 2014DSP capabilities of SoC FPGAs address emerging small cell requirements
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The insatiable demand for increased communication bandwidth is driving the development of new wireless architectures and the deployment of a wide variety of new wireless infrastructure devices. Of the two key approaches – a centralized homogeneous network architecture and a distributed heterogeneous... [Sensors→ November 2014White Paper: Analog Signal Conditioning for Accurate Measurements
A/D converters→ December 2015White Paper: Critical Techniques for High-Speed A/D Converters in Real-Time Systems
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An A/D (Analog-to-Digital) converter, frequently abbreviated as ADC, accepts an analog voltage at the input and produces a digital representation of that voltage at the output that's called a "sample". The two primary characteristics of A/Ds are the rate of conversion or sampling rate, expressed in ... [cognitive radio→ October 2014Cognitive radio's fate 'uncertain' as the spectrum battle plays out
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The U.S. Federal Communications Commission (FCC) is attempting to find a regulatory fix – striking a balance between national defense and economics – to eliminate electromagnetic spectrum inefficiencies. For now, this is making the exact role cognitive radio technology will play in the U.S. military... [voltage references→ October 2014Shutting out the noise: Voltage references for precision analog signal paths in space applications
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When designers are trying to select a component in the signal path of a satellite system, it is often difficult to find a device with both the radiation tolerance and accuracy required. Signal integrity is, after all, the key specification when designing an analog signal chain. The main causes of er... [Signal processing→ January 2014Digital channelizer implemented on COTS FPGA board: A flexible solution for military signal processing
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One of the major challenges of modern military Digital Signal Processing (DSP) is dealing with the ever-widening bandwidth of digitized signals. Until fairly recently, analog-to-digital converters (A/D converters) were limited to only hundreds of MHz, so anything beyond that had to be dealt with usi... [radar→ January 2015Space Fence radar system to identify, track space junk
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Space Fence, a fully digital S-band radar system, is being built for the U.S. Air Force by Lockheed Martin to better identify and track space junk to help protect military satellites and other space assets by preventing conjunctions and the creation of more debris – hurtling along at speeds of 17,50... [Real-time OS→ March 2005Fully functional isolated analog signal conditioners suitable for PC/104 boards
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Until recently, users usually relegated signal conditioners externally to I/O boards. This configuration resulted in users adding peripheral electronic boards to their systems, substantially increasing both hardware costs and cabinet space requirements. To address these problems, Dataforth designed ... [Avionics Safety Certification→ February/March 2014MIL-STD-1553 IP cores challenge traditional IC implementation
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Forty years since its release, MIL-STD-1553 is evolving from traditional Integrated Circuits (ICs) to Intellectual Property (IP) cores integrated with Field Programmable Gate Arrays (FPGAs). The advantages of IP core implementation include cost reduction, the ability to upgrade and adapt a design ov... [Analog→ November 2011Hot Chips will need more analog to support multicore
Analog→ November 2011National Semiconductor adds 16-bit and 24-bit sensor analog front ends
Astronomy→ Summer 2004PXI-Gigahertz FADCs help astronomers probe deep space using gamma rays
Sensors→ August 2005Successful techniques for capturing analog signals for real-time signal processing
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Signal processing systems consist of common functional blocks, from the sensor to the processor to “downstream” data recipients. Additionally, all such systems share a common denominator: the real world is analog, not digital. Capturing, sampling, filtering, and processing analog signals requires so... [CompactPCI→ February 20073U CompactPCI boards key for always on passenger infotainment
Analog→ November 2011Conexant adds Keterex audio playback IC to launch new product line
Software Defined Radio (SDR)→ December 2015White Paper: Software Defined Radio Handbook (11th Edition)
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SDR (Software-Defined Radio) has revolutionized electronic systems for a variety of applications including communications, data acquisition and signal processing. This handbook shows how DDCs (Digital Downconverters) and DUCs (Digital Upconverters), the fundamental building blocks of SDR, can replac... [Software-Defined Radio (SDR)→ March 2014White Paper: Software Defined Radio Handbook -- 10th Edition
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New! Software Defined Radio Handbook The folks at Pentek, who wrote the book on software radio, are pleased to announce their recently released and expanded Software Radio Handbook. Downloaded thousands of times, the handbook has proved to be a useful technical reference for engineers. It's yours ... [Data acquisition→ Winter 2001Data Acquisition and control system for testing beverage vending machines
Software Defined Radio (SDR)→ February 2008SDR applications: One size does not fit all
Analog→ November 2011TI claims industry's lowest power for NFC transceiver
Unique applications→ Winter 2004Reconfigurable analog: The start of a revolution
Data acquisition→ May 2004Considerations in embedded data acquisition
SENSORS/CONTROL: Analog→ November 2005Smart sensor interface for industrial applications
Transportation applications→ July 2004No wheels, no axles, no rails
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In this article the authors outline elements required for successful implementation of the Guideway Monitoring System (GMS) for the world’s first Transrapid maglev train. These elements include the use of the CompactPCI bus, LabVIEW capability, and the support of special analog-digital conversion ca... [VITA/VSO→ April 2009VITA 42.0 receives ANSI recognition, VITA 46.14 tackles analog and RF on VPX