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Topic: Waveform


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In the News (Mon 19 Aug 19)

  
  Michigan Data Center Services by Waveform Technology LLC
Michigan Data Center Services by Waveform Technology LLC
Our data center is engineered from the ground up for reliability and performance.
Waveform Technology LLC is debt free, locally owned and operated and celebrating our 15th year in business.
www.waveform.net   (152 words)

  
  Tektronix: Products > Arbitrary Waveform Generator - AWG710B: Introduction
The AWG710B Arbitrary Waveform Generator Delivers World-class Signal Fidelity at 4.2 GS/s to Solve Ever-increasing Measurement Challenges.
The AWG710B combines world-class signal fidelity with ultra high-speed mixed signal simulation, a powerful sequencing capability and graphical user interface with flexible waveform editor, to solve the toughest measurement challenges in the disk drive, communications and semiconductor design/test industries.
This software allows for easy waveform import from oscilloscopes or basic, advanced, and math waveform creation and edit capabilities.
www.tek.com /site/ps/0,,76-14865-INTRO_EN,00.html   (297 words)

  
  Quadrature Trapezoid VCO: Part 3, Trapezoid Waveform Notes
The waveform is symmetrical, meaning that the time spent slewing positive, holding positive, slewing negative, and holding negative are all equal, and that the slope of the positive ramp is equal and opposite the slope of the negative ramp.
The waveform for this article is normalized so that it has a value that ranges from -1.0 to +1.0, a frequency of 1.0 rad/sec, and a phase such that its value crosses 0.0 in the positive direction at x = 0.0.
Because the two trapezoid waveforms are 90 degrees apart, and the phase of the resulting triangle waveform is halfway between the two trapezoids, the odd harmonics branch away in positive and negative directions from the phase of the fundamental at odd multiples of 45 degrees.
www.till.com /articles/QuadTrapVCO/trapezoid.html   (1105 words)

  
 Advanced Waveform Sequencing and Triggering on Arbitrary Waveform Generators- Developer Zone - National Instruments
Advanced waveform triggering and sequencing is made possible on a variety of NI modular instruments through its implementation as part of the synchronization and memory core (SMC) architecture.
In addition, these waveforms can be generated in a sequential manner in what is commonly referred to as “linking and looping.” With this feature, you can create complex waveform sequences by generating waveforms in a predetermined or dynamic order.
After the waveform has been looped for the appropriate number of iterations, the last sample of the waveform repeats continuously until the next trigger is received.
zone.ni.com /devzone/cda/tut/p/id/5534   (3842 words)

  
 Novel Waveform Techniques
Although waveform design is always an essential part of the design of active sensors, there has been recent emphasis on new waveform techniques such as matched illumination, adaptive waveform control, and exploitation of waveform diversity capabilities such as spatial or polarization diversity.
When combined, waveform optimization and sequential hypothesis testing form a closed-loop system that is an example of the more complex closed-loop operation that we hope cognitive radar will eventually become.
The second is an information-based waveform that depends on the ensemble of channel hypotheses (in this case, the ensemble of target hypotheses), and the third is based on the eigenfunctions of the ensemble's autocorrelation matrix.
www.ece.arizona.edu /~lsap/novel_waveform_techniques.htm   (710 words)

  
 Spectrogram Reading - What are waveforms?
A waveform tracks excess pressure as a function of time for a given point in space.
Figure 3 - The waveform for the "pu" portion of the word "compute," showing the absence of marked vibrations representing near silence at the left, slow high amplitude swings corresponding to 'p' in the middle, and quasi-periodic cycles representing the voicing of the 'yu' vowel toward the right.
Although we can learn quite a lot by a visual inspection of a speech waveform, it is impossible to detect individual speech sounds from waveforms because of the variability of human speech between individuals, and even in two different pronunciations of a given word by the same person.
cslu.cse.ogi.edu /tutordemos/SpectrogramReading/waveform.html   (614 words)

  
 Transmitted television signal waveform equalizing system - Patent 5353069
For performing the waveform equalization in a sequence of the time domain, the synchronous addition is needed upon every correction of the tap coefficients of the transversal filter, thus increasing the overall time needed for the waveform equalization.
After the waveform equalization is completed, the CPU 12 turns the selector circuit 7 from the "b" position to the "a" position and also turns the selector circuit 8 from the "c" position to the "d" position for delivering a corrected waveform of the TV signal.
In particular, a waveform distortion change detector circuit 15 is provided for operating independently of the waveform equalization to examine whether the waveform distortion is varied or not due to a change in the TV signal.
www.freepatentsonline.com /5353069.html   (3950 words)

  
 Philips, Defibrillators - Principles of Effective Waveform Design
Further, the waveforms used energy inefficiently and were not able to adjust effectively to a patient’s chest impedance.
In summary, by manipulating the defibrillator electronics and optimizing the waveform to address issues such as high impedance and shunting, it is now possible to achieve defibrillation on the first dose using a carefully calibrated fixed low-energy waveform design.
The last critical dosing factor involves the design of the waveform, which delivers a changing pattern of current to the patient throughout the duration of the shock to accommodate variations in patient impedance.
www.medical.philips.com /main/products/resuscitation/biphasic_technology/waveform_design.html   (1444 words)

  
 MITSYN Waveform (sound) File Editor Usage
The main window view is of channel waveforms (viewing a list of selected channels), and the view is usually set to use fixed scaling (for audio, although not for process simulations), so that the scale will stay constant while paging through a waveform stream file.
Waveform channel signals are displayed in a time-compressed format, using one of the available forms of decimation such as Range, First, Max, Mean, or RMS.
In the caption for each waveform segment plot is a field shown as "Decimation: nn, type", where "type" is the decimation type and "nn" is in the decimation ratio (how many samples are represented by each plotted point).
home.earthlink.net /~billhenke/WavEd/WavedUsage.htm   (540 words)

  
 IntuScope5 Waveform Analyzer
Waveform #1 spans from 0 to 100ns, and waveform #2 spans from 0 to 200ns.
If waveform #1 is dragged from the upper plot to the lower plot its data is auto- interpolated and extended so that it spans from 0 to 200ns.
If waveform #2 is dragged from the lower plot to the upper plot, its data is automatically interpolated and truncated so that it spans from 0 to 100ns.
www.intusoft.com /products/scope/intuscope.htm   (1339 words)

  
 What is waveform? - a definition from Whatis.com - see also: sine wave   (Site not responding. Last check: 2007-10-05)
A waveform is a representation of how alternating current (AC) varies with time.
The most familiar AC waveform is the sine wave, which derives its name from the fact that the current or voltage varies with the sine of the elapsed time.
Household utility current has a sine waveform with a frequency of 60 Hz in most countries including the United States, although in some countries it is 50 Hz.
whatis.techtarget.com /definition/0,,sid9_gci213731,00.html   (246 words)

  
 Video Engineering Primer
The scale of the vectorscope is a circle overlaid with the color amplitude and phase relationship of the three primary colors (red, green and blue).
The proc amp should be used with both a waveform monitor and vectorscope to insure that the changes you are making are what you think you are making.
However, it must be used in conjunction with a waveform monitor and vectorscope for predictable results.
www.videouniversity.com /engineer.htm   (1584 words)

  
 >> high voltage multichannel waveform generators   (Site not responding. Last check: 2007-10-05)
The multichannel, high voltage, computer controlled Waveform Generator WFG600 is an exceptional instrument designed primarily for experiments on addressing liquid crystal devices and is most suitable for all applications where synchronized trains of pulses with variable width and amplitude are required.
Waveforms may be joined in groups to allow synchronous amplitude adjustments.
Waveforms may thus be created and altered faster, simpler and require less memory space.
www.flce.com /wfg.htm   (633 words)

  
 AmbientMusicGuide.com - Waveform Records   (Site not responding. Last check: 2007-10-05)
Waveform Record's founder is ambient DJ Forest, host of the long-running American public radio show Musical Starstreams.
Much of Waveform's output is instead anchored in slow, seductive bassy grooves influenced by the studio techniques of 70s' Jamaican reggae producers like King Tubby and Lee Perry.
Waveform's catalogue of some 35 releases to date includes some brilliant artist albums as well.
www.ambientmusicguide.com /pages/W/waveform.php   (848 words)

  
 A04: Waveform Generation subVI
Amplitude - The peak amplitude of the waveform.
Your waveform generator will be MUCH simpler because I am not asking you to keep track of the phase of the signal.
You will later use this subVI to generate a waveform of a selected frequency that is exactly one cycle long.
physics.wku.edu /phys318/assignments/a04.html   (422 words)

  
 The Waveform Monitor
If the waveform display for an actual setup at your shoot extended up that far, you should probably take measures to knock down the brightness and thereby avoid the headache of video clipping.
For all of the Waveform modes except Luma, the horizontal position in the signal corresponds to the horizontal position within the image.
With the Waveform Monitor In the Luma mode, adjust the camera settings and lighting to produce a nice gentle "hump" in the middle of the histogram.
www.seriousmagic.com /products/dvrack/DVRackOnlineHelp/components-2.htm   (1201 words)

  
 ee205 instr 2
The frequency of the voltage waveform is proportional to the speed with which the RAM is addressed.
The waveforms have, by default, an offset voltage of 0V, which means that the waveform will vary between a positive and negative value.
Once the waveform is created you can use BenchLink to download the waveform to the HP function generator and store it in its memory.
www.ese.upenn.edu /rca/instruments/HPfuncgen/WaveFormGen/WaveFormGen.html   (2468 words)

  
 baudline manual - waveform
When baudline is in the record or play modes the waveform displayed is the real-time data that is currently being input or output.
To open the waveform window select the waveform option in the displays sub section of the main window.
The intended use of this menu is to reduce the number of displayed waveform channels for aesthetic or duplicate reasons.
www.baudline.com /manual/waveform.html   (998 words)

  
 Waveform   (Site not responding. Last check: 2007-10-05)
waveforms are often termed fixed waveforms because of their lack of variation, whereas acoustic waveforms are constantly varying.
The waveform represents the behaviour of the sound in the time domain, and since its shape is indicative of the frequency content of the sound, waveform is sometimes used synonymously with
, although all contributing factors to timbre cannot be understood simply in terms of the waveform.
www.sfu.ca /sonic-studio/handbook/Waveform.html   (106 words)

  
 Introduction to waveform interpretation
Distortion of a waveform is the undesired change or deviation in the shape of the observed signal with respect to a reference waveform.
A waveform that can be validly termed distorted with respect to a specific amplifier circuit may be the normal waveform to be expected from another amplifier circuit.
One of the most important steps in waveform analysis, the one that usually proves the most difficult for the maintenance personnel, is the interpretation of patterns viewed on the test equipment.
www.tpub.com /neets/book21/90.htm   (1288 words)

  
 PCI-5300 PCI Arbitrary Waveform Generator   (Site not responding. Last check: 2007-10-05)
It is a high performance waveform generator that combines many powerful functions in one small package.
Supplied free with the instrument is ArbConnection software, which is used for controlling the 5300 and for generating, editing and downloading waveforms from a remote computer.
Waveform sequencing with up to 4096 segments and sequences
www.acquitek.com /pci-5300/pci-waveform-generator.html   (96 words)

  
 CONTEC [Solutions for PC-based Measurement - Waveform generator (Function Generator)]
In addition to the standardly provided waveform signals including sine, triangular, square and pulse, this software can read the waveform data created at the user¡Çs end from a file and output them.
Since the output waveform can be set for each channel, signal output can he conducted with a high degree of freedom.
Function Generator is capable of outputting waveform continuously for maximum 16 channels from one piece of CONTEC hardware which supports continuous analog output.
www.contec.com /pcmeasure/function.htm   (822 words)

  
 About Arbitrary Waveform Generators - TEGAM INC.
This series of sequential voltage levels describes the output waveform with the frequency determined by the sample clock rate divided by the number of samples in the waveform.
With the large waveform memories typical of Pragmatic generators at least 100 non-volatile waveforms may be stored.
If multiple cycles of the waveform are entered into the same waveform memory location, the output frequency will increase proportional to the number of cycles in memory.
www.tegam.com /html/abc.htm   (592 words)

  
 JTRS SINCGARS Waveform Development Overview
As illustrated in Figure 1, the SINCGARS waveform is a modular, portable waveform with most of the processing being performed in general purpose processors.
During Step 3, The JTRS Radios and Waveforms for each cluster are being developed, and the architecture is continuing to evolve in response to new or changing warfighter requirements and technology advancements.
The SINCGARS waveform being developed by ATC for the JTRS/JPO is one of the most complex of the legacy waveforms, has the most applications of any link in the military, and is the first JTRS SCA 2.2 compliant waveform ready for fielding.
www.assurtech.com /SINCGARSover.asp   (795 words)

  
 Waveform Data
Waveforms are the actual time and amplitude data from the instrument.
Waveform data can also be copied to the Windows Clipboard and pasted into other applications.
Click the left arrow of the scroll bar to see waveform data that is to the left of your waveform view’s current position.
www.engin.swarthmore.edu /benchlink/waveformdata.html   (679 words)

  
 EPICS Joerger VDACM Waveform Generator Support
This waveform record is used to write a waveform to an individual channel on the VDACM.
As with the waveform write record, use the parameter field to specify an offset, the NELM to specify length of the waveform and the FTVL must be "SHORT".
This ao record can be used to set the waveform start address or the waveform length address to choose the addresses in memory to be scanned for DAC outputs.
www.fel.duke.edu /epics/joerger_vdacm.html   (1092 words)

  
 ee205 instr 2
The frequency of the voltage waveform is proportional to the speed with which the RAM is addressed.
The waveforms have, by default, an offset voltage of 0V, which means that the waveform will vary between a positive and negative value.
Once the waveform is created you can use BenchLink to download the waveform to the HP function generator and store it in its memory.
www.seas.upenn.edu /ese/rca/instruments/HPfuncgen/WaveFormGen/WaveFormGen.html   (2468 words)

  
 Waveform
Decode waveform data to an array of float values.
Decode waveform data to an array of integer values.
Return a fixed value for the lookup ID. Waveform objects do not need to be distinguished from others, since they are always attached to Blockettes.
www.iris.edu /manuals/pdcc3.0/edu/iris/Fissures/seed/container/Waveform.html   (643 words)

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