Signal Processing Types

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Maxim's Pocket IO PLC Development Platform provides designers and industrial engineers the flexibility to experiment, to find the best solution for reduced power dissipation and small form factors in PLC designs.[Continue reading →]

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Latency, or the time between input and output, can be very important, depending on the application. For processing of communications intelligence (COMINT) like audio conversations, text data and the like, relatively long latency is tolerable. For applications like Radar and Electronic Warfare (especially Digital Radio Frequency Memory or DRFM), just a small amount of latency is problematic, due to the necessity of quick response times.

Similarly, these demanding applications require very high bandwidth (throughput) due to the volume of data involved. Low latency without high bandwidth (and vice versa) is a waste of performance, as it won’t deliver mission success.[Continue reading →]

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RFEL will be launching its latest core at EW Europe. The new Fractional Rate Resampler IP core, which was originally part of the company's multi-award winning ChannelCore Flex(tm) product, is now offered as a stand-alone IP core for FPGAs in response to customer requests.[Continue reading →]

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To perceive is to assign meaning to what we see, hear, touch, taste and smell. Similarly, perceptual computing offers users a more natural way to interact with machines. Today's platforms have the ability to go well beyond simple facial recognition, which is becoming quite common today as a way to replace passwords. In fact, recent developments in software technology made practical by advanced graphics processing units (GPUs) are expanding perceptual computing to new levels of functionality in embedded applications.[Continue reading →]

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USB Type-C standard enables reversible connectors and 10 Gbps data transfer speeds with support for new bi-directional USB power delivery[Continue reading →]

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It is the purpose of this primer to instead describe digital oscilloscopes, which have for practical purposes replaced their analog predecessors in the vast majority of applications. Covered here is a short description of the oscilloscope's origins, its transition from analog to digital, types of digital oscilloscopes and their major subsystems, key benchmark specifications, and measurements.

Whether analog or digital, the oscilloscope is a versatile piece of test equipment. Even though its basic function is to measure and display voltage, its capabilities are vastly greater. They range from automation of the measurements described here, as well as signal detection and analysis in commercial and defense systems, and a wide array of others.[Continue reading →]

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Using Computational Fluid Dynamics (CFD) is no longer relegated to the realm of the specialist. A new class of CFD analysis software is proving to be highly effective at performing heat transfer analysis, enabling mechanical engineers to accelerate key decisions at their workstations and without the need for CFD specialists. Embedded into the MCAD environment, this intuitive process allows designers to optimize a product during the design stages reducing manufacturing costs across a wide range of mechanical designs and systems.[Continue reading →]

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The M5U2203 is the first and most powerful rugged rackmount server optimized as a GPU supercomputer supporting four double-wide plug-in cards in x16 PCIe 3.0 slots and with Intel's latest E5-2600 processors[Continue reading →]

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LAKE BUENA VISTA, Fla., July 24, 2012 -- Video service providers are increasingly turning to Digital Adware for their new modular ad insertion platform, AdSync. Launched last year, AdSync presents small and mid-sized video providers with an affordable digital ad insertion solution, allowing them to maximize profitability from local ad sales.

"The ability to insert ads into digital cable and IPTV platforms has always been available, but the cost of the equipment and licensing fees required has put it out of reach for many smaller carriers," said Brian Stuart, President of Digital Adware. "AdSync is not only priced considerably lower than products of its kind, but it also facilitates splicing and multiplexing functions, eliminating an array of licensing fees, offering a true one box solution."[Continue reading →]

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Whether for noise removal or feature abstraction, selecting correctly between a linear or nonlinear filter for image processing applications could be the difference between "getting the picture."[Continue reading →]

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Washington, D.C.. STM Group, Inc. has announced today, at the Satellite 2012 tradeshow in Washington D.C., that it is now shipping its SatLink® family of VSATs and Hubs with support for the new DVB-RCS2 standard for general availability. STM is the first company in the industry to support the "RCS2" standard. In June of 2011, STM also lead the way with the first public demonstration of the major high-performance features in the new RCS2 standard, just a few months after approval by the DVB organization.

DVB-RCS2 provides for higher order modulation and coding along with many other elements contributing to much higher throughput, better bandwidth efficiency, and improved link availability relative to legacy VSAT systems. Modulation and coding from QPSK 1/3 up to 16QAM 5/6 is provided for TDMA burst mode carriers with Adaptive Coding and Modulation (ACM) controlled per burst for each VSAT. The other elements include a 16-state Turbo Code FEC and highly efficient Return Link Encapsulation (RLE) for IP packets imposing about 2% overhead.[Continue reading →]

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DVB-RCS2 provides for higher order modulation and coding along with many other elements contributing to much higher throughput, better bandwidth efficiency, and improved link availability relative to legacy VSAT systems.[Continue reading →]

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Being the first microwave radio systems provider to introduce 2048QAM, NEC can deliver up to 40% per-channel capacity increase to its customers, relative to the systems commonly in operation today which employ up to 256QAM.[Continue reading →]

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Photovoltaic (PV) power systems, including solar power inverters, are expected to operate reliably and at full rated output for a minimum of 25 years, so they need highly efficient inverters that run cooler, last longer and generate cash savings for the PV system manufacturer and user. Download this white paper from Silicon Labs to find out how advanced digital isolation technologies boost solar power inverter reliability.[Continue reading →]

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This white paper discusses the behavior of the Intel Core i7 processor, as implemented on the Curtiss-Wright Controls Embedded Computing multi-processor CHAMP-AV series products at elevated temperatures, and how to take advantage of board features to maximize the performance potential of the system.[Continue reading →]

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With mission critical software, development teams are tasked with looking for ways to accelerate innovation, improve product value, and lower software change costs. This white paper shows how Deos™, a time and space partitioned RTOS, allows this by providing the ability to decompose the software system into discrete, separately verified, binary re-useable components. In short, Deos provides tools and technologies to help a development team reduce the fear of post deployment changes and improvements that often grip mission critical projects.[Continue reading →]

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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 replace conventional analog receiver designs, offering significant benefits in performance, density and cost.

In order to fully appreciate the benefits of SDR, a conventional analog receiver system will be compared to its digital receiver counterpart, highlighting similarities and differences. The inner workings of the SDR will be explored with an in-depth description of the internal structure and the devices used. Finally, some actual board- and system-level implementations and available off-the-shelf SDR products for embedded systems will be described.[Continue reading →]

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To realize the full potential of multicore systems, many usage scenarios require using multiple secure computing domains, often managed by different operating systems, on the same physical device. This can be accomplished by dividing the cores, memory and I/O devices of a system into secure, logical partitions. The partitions need to operate independently of each other, and operating systems must be able to access and manage the hardware resources belonging to the partition with little or no overhead.[Continue reading →]

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Today, manufacturing organizations world wide are working on reducing complexity in the manufacturing process and increasing the transparency of processes throughout the enterprise. The ability to communicate data from any part of the enterprise to any other part of the enterprise is core to making modern manufacturing work.[Continue reading →]

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This handbook shows how digital receivers, the fundamental building block of software radio, can replace conventional analog receiver designs while offering significant benefits in performance, density and cost. The inner workings of the digital receiver are explored and actual digital receiver systems and commercially available products are described. [Continue reading →]

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This paper provides an introduction to the use of re-configurable FPGA devices on a PMC or IP mezzanine module as an alternative to dedicated DSP hardware.

The development time, cost, and ease with which DSP solutions can be deployed has improved considerably since the introduction of high performance FPGA components from companies such as Xilinx® and Altera®. Modern FPGA devices now offer extensive support for DSP applications. In this paper, we will discuss these advances, current trends for implementing DSP applications, available development tools, and the benefits of using FPGAs for DSP.[Continue reading →]

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Migrating code to multi-core processors has become a major design decision for embedded developers. To help simplify migration efforts, operating system vendors have introduced solutions for asymmetric multiprocessing (AMP), symmetric multiprocessing (SMP), and bound multiprocessing (BMP). However, once the basic multiprocessing model is chosen, the real work begins. It isn’t enough to get software to run on a multi-core processor — the key to success is optimizing the software to make full use of all the processor’s cores.

This paper examines various techniques for optimizing code on multi-core processors. It addresses threading models for multiple concurrent tasks and parallel processing for increased performance. It discusses how to minimize lock contention with mutexes and semaphores by engineering the appropriate levels of lock granularity. Finally, the paper explores methodologies for resolving performance problems that result from inefficient use of CPU cache. [Continue reading →]

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Quite a bit of technology needs to surround and support new high speed A/D converters in order to deploy them successfully in realtime systems.

A complete signal acquisition plan must be developed. It should include frequency content of the signal, voltage levels, accuracy and bandwidth.[Continue reading →]

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