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Topic: Sample signal

	Sample (signal) - Wikipedia, the free encyclopedia
		The defining point of a sample is that it is a chosen value out of a continuous signal.
		A theoretical ideal sampler multiplies a continuous signal with a Dirac comb.
		If this signal is then discretized (i.e., converted into a sequence) and quantized along all dimensions it becomes a discrete signal.
	en.wikipedia.org /wiki/Sample_(signal) (120 words)

	Assay device for liquid sample - Patent 20060029924
		The assay device of claim 1 wherein the sample presence signal is generated by the transition of an overlay from an opaque state to a transparent or translucent state.
		The assay device of claim 1, wherein the sample presence signal generation means comprises a mobilisable detectable material localised on or in the liquid transport means, and which, when wetted by the liquid sample, is carried by it along the liquid transport means resulting in a streaked line substantially parallel with the sample flow direction.
		The signal is generated solely as a consequence of the carrier being wetted by sufficient liquid sample, namely when taken alone is not indicative of a valid negative result since it provides no indication that the test has functioned properly other than that it has been wetted by sufficient liquid sample.
	www.freepatentsonline.com /20060029924.html (5783 words)

	THE WAVELET TUTORIAL
		Recall that the CWT is a correlation between a wavelet at different scales and the signal with the scale (or the frequency) being used as a measure of similarity.
		The signal is passed through a series of high pass filters to analyze the high frequencies, and it is passed through a series of low pass filters to analyze the low frequencies.
		Upsampling a signal by a factor of n increases the number of samples in the signal by a factor of n.
	users.rowan.edu /~polikar/WAVELETS/WTpart4.html (3398 words)

	Cisco - Waveform Coding Techniques
		He determined that if the sampling frequency is at least twice the highest frequency of the original input analog voice signal, this signal can be reconstructed by a low-pass filter at the destination.
		The difference between the input signal amplitude height and the quantization interval decreases as the quantization intervals are increased (increases in the intervals decrease the quantization noise).
		The input signal is sampled at a constant sampling frequency (twice the input frequency).
	www.cisco.com /warp/public/788/signalling/waveform_coding.html (2204 words)

	Bandwidth, Sample Rate, and Nyquist Theorem- Developer Zone - National Instruments
		Sample rate is the frequency at which the ADC converts the analog input waveform to digital data.
		Sample rate is the speed at which the digitizer’s ADC converts the input signal, after the signal has passed through the analog input path, to digital values that represent the voltage level.
		The Nyquist theorem states that a signal must be sampled at a rate greater than twice the highest frequency component of the signal to accurately reconstruct the waveform; otherwise, the high-frequency content will alias at a frequency inside the spectrum of interest (passband).
	zone.ni.com /devzone/cda/tut/p/id/2709 (952 words)

	The Measured Asymmetry
		The relaxation of the muon spin precession signal is small and is owing primarily to the distribution of the nuclear-dipolar fields in the sample.
		The ensuing asymmetry spectrum is a superposition of a signal resembling Fig.
		The origin of the residual background signal is still uncertain, but may be due to those muons which scatter at wide angles after passing through the muon counter and are thus not vetoed by the V counter.
	musr.physics.ubc.ca /theses/Sonier/MSc/node34.html (937 words)

	Signal To Workspace (DSP Blockset)
		Kf is the number of samples* acquired by the end of the simulation.
		In the following Example 1 model, the input to the Signal To Workspace block is a 2-by-2 sample-based matrix signal with a sample time of 1 (generated by a Signal From Workspace block).
		In the following Example 2 model, the input to the Signal To Workspace block is a 2-by-4 frame-based matrix signal with a frame period of 1 (generated by a Signal From Workspace block).
	www.phys.ufl.edu /docs/matlab/toolbox/dspblks/signaltoworkspace.html (958 words)

	Accurate small-spot spectrometry systems and methods - Patent 6870617
		a processor coupled to the spectrometer for determining characteristics of the sample using a monitor signal generated by the spectrometer in response to receiving light reflected from the mirror and a measurement signal generated by the spectrometer in response to light reflected from the sample.
		This monitor signal from the detector 150 is received by a processor 160 which analyzes the monitor signal and uses it relative to a signal generated by detector 130.
		This sample signal is received by the processor 160 where it is analyzed relative to the monitor signal received from the detector 150.
	www.freepatentsonline.com /6870617.html (3367 words)

	Desktop Engineering (Site not responding. Last check: 2007-10-20)
		With a sample rate of 200 megasamples per second (MS/sec) and a memory depth of 1MB, both signals can be captured and measured with confidence simultaneously even over 10-millisecond (1ms/div) or 5-millisecond (500ms/div) time spans.
		This means that the specified sample rate is the maximum sample rate, and is dependent on the scope’s memory depth and the timebase setting selected for the application.
		Today, higher sample rates, faster updates, autoscale algorithms, and antialiasing filters are helping to avoid incorrectly representing fast signals that are being captured at slow timebase ranges when the sampler must be slowed down due to memory depth limitations.
	www.deskeng.com /articles/00/Feb/sample/main.htm (1477 words)

	Sample - Wikipedia, the free encyclopedia
		Sampling (signal processing), the process of recording of sound as a series of numbers which represent the sound's amplitude
		Sampling (music), a short phrase of a recording used as an element in a new piece of music
		Sample size rule of thumb for estimate of population mean
	en.wikipedia.org /wiki/Sample (173 words)

	Sustained sample rate in digital oscilloscopes - Technology Information - Technical Hewlett-Packard Journal - Find ...
		Basic sampling theory states that for a signal to be faithfully reproduced in sampled form, the sample rate must be greater than twice the highest frequency present in the signal.
		This sample rate is known as the Nyquist rate.[1] For an oscilloscope, this means that if the user wants to capture a 100-MHz signal, the sample rate should be at least 200 MSa/s.
		In repetitive sampling, the waveform is assumed to be periodic and a few samples are captured each time the oscilloscope sees the waveform.
	www.findarticles.com /p/articles/mi_m0HPJ/is_n2_v48/ai_19426717 (837 words)

	NREL: Technology Transfer - Radio Frequency Coupling Apparatus and Method for Measuring Minority Carrier Lifetimes in ...
		A signal generator is included to generate high frequency, such as 900 MHz or higher, sinusoidal waveform signals that are split into a reference signal and a sample signal.
		The sample signal is transmitted into a sample branch circuit where it passes through a tuning capacitor and a coaxial cable prior to reaching the antenna.
		The antenna is radio-frequency coupled with the adjacent sample and transmits the sample signal, or electromagnetic radiation corresponding to the sample signal, to the sample and receives reflected power or a sample-coupled-photoconductivity signal back.
	www.nrel.gov /technologytransfer/ip/data.php/patent/6369603 (302 words)

	VMS Paper
		The sample holder is mounted using a sample rod in a transducer assembly which passes through the center of a driving coil.
		The output of the sample coil is fed to the differential input of a lock-in amplifier.
		A 7000A Fe sample was used to find the best placement of the sample between the coils, which means a position at which a vibrating sample produces a good induction in the coils as well as a position which is insensitive to small errors in placement of the sample.
	members.aol.com /RudyHeld/publications/unpublished/VSM/vsm.htm (5121 words)

	Keck-II - What is FT-IR?
		When the interferogram signal is transmitted through or reflected off of the sample surface, the specific frequencies of energy are adsorbed by the sample due to the excited vibration of function groups in molecules.
		A single beam spectrum obtained without a sample is called a background spectrum, which is induced by the instrument and the environments.
		If the concentrations of gases such as water vapor and carbon dioxide in the instrument are the same when the background and sample spectra are obtained, their contributions to the spectrum will ratio out exactly and their bands will not occur.
	www.nuance.northwestern.edu /KeckII/ftir1.asp (730 words)

	Howto create and use signals
		This is obviously not the case in the example used in the previous sections since the write to the file depends on whether or not the default handler runs (however, this might be your goal: to allow the user to prevent the file write if he wishes to).
		If the signal's default handler is just a class function pointer, it is also possible to override it yourself from the class_init function of a type which derives from the parent.
		That way, when the signal is emitted, the parent class will use the function provided by the child as a signal default handler.
	www.le-hacker.org /papers/gobject/ch05s03.html (1763 words)

	Logic Analyzer Help - Digital Design - USB Development
		The USBee Signal Generator System consists of the USBee pod connected to your Windows PC through the USB cable, and to your digital circuit using the multicolored test leads and clips.
		Since the Signal Generator application actively drives the USBee Pod signals, this warnig allows you to disconnect the signals from anything that may also be driving.
		The header will then show the details of the sample number, value of the 8 signals at that position and the time of that sample from the beginning of the sample buffer.
	www.usbee.com /help/sghelp.htm (1027 words)

	Downsample :: Blocks (Signal Processing Blockset)
		The Sample offset parameter delays the output samples by an integer number of sample periods, D, where 0 ≤D < (K-1), so that any of the K possible output phases can be selected.
		For sample-based input, the latency is one sample.
		Configure the Signal From Workspace block to generate a two-channel signal with frame size of 4 and sample period of 0.25 second.
	www.mathworks.com /access/helpdesk/help/toolbox/dspblks/downsample.html (1224 words)

	Analog Devices: Analog Dialogue: Digital Signal Processing 101 An introductory course in DSP system design: Part 1
		When acting as a digital filter, for example, the DSP receives digital values based on samples of a signal, calculates the results of a filter function operating on these values, and provides digital values that represent the filter output; it can also provide system control signals based on properties of these values.
		This sampling rate is determined by the amount of signal information that is needed for processing the signals adequately for a given application.
		In order for an ADC to provide enough samples to accurately describe the real-world signal, the sampling rate must be at least twice the highest-frequency component of the analog signal.
	www.analog.com /library/analogDialogue/archives/31-1/DSP.html (2849 words)

	Systat Software Inc. - AutoSignal - HTML Help
		A signal expression is extensively validated before it is compiled.
		Signal files are binary and must be created within the program.
		When the signal is successfully validated, the generated signal is plotted in an AutoSignal Graph.
	www.systat.com /products/AutoSignal/help/?sec=1142 (911 words)

	Digital Signal Processing Problems
		Suppose this signal is used to sample a signal bandlimited to
		He multiplies the bandlimited signal by the depicted periodic pulse signal to perform sampling (figure 2).
		This signal serves as the input to a first-order RC lowpass filter.
	cnx.org /content/m10351/latest (2645 words)

	FPGA Cores enable manipulation of signal sample rate., RF Engines
		RF Engines Ltd (RFEL), the specialists in innovative signal processing design, has developed a new range of Fractional Resampling Architectures for FPGA that can be used to perform up-sampling or down-sampling of high-speed digital signals.
		Fractional resampling is a signal processing function that enables the manipulation of the signal sample rate, so that it may be precisely matched to the requirements of subsequent processing.
		This has many applications, but RF Engines designs are particularly relevant for matching symbol and sample rates in digital receivers, enabling the modulators and demodulators to be significantly simpler and cheaper.
	news.thomasnet.com /fullstory/464771 (1131 words)

	Audio Spectrum Analyzer and Acoustics Software
		Sample Champion has been used for all the measurements in the book Ribbon Loudspeakers by Justus V. Verhagen.
		With Sample Champion you'll be able to measure the Impulse Response of a room, or analyze loudspeaker frequency Responses with just a mouse click.
		Moreover, Sample Champion is expandable, by using especially created software modules (plug-ins), to perform DSP operations in time and frequency domains.
	www.purebits.com (994 words)

	Sample Signal Description
		Each Pattern Signal link provides a detailed discussion of the signal triggered, the setup parameters required to fire, and a few techniques to best take advantage of the market information offered.
		Of all the Pattern Signals that come out of the pattern screening process, markets that fire Narrow Range days often present the greatest potential for profit.
		Not every Narrow Range day results in range expansion and a pickup in volatility, but, by practicing appropriate tape reading skills and using a few simple indicators, the trader can be better positioned to capture the move when the expected pickup in activity materializes.
	www.patterntrapper.com /subscriber/NarwRng.shtml (315 words)

	[No title]
		First second in the first place then While until always on time Type Four: Illustration Signals — words that signal the author is about to give you an example.
		To illustrate much like similar too for instance Type Five: Emphasis Signals — words that signal something important is about to be said.
		As a result hence consequently therefore Type Seven — Cause, Condition, or Result Signals — words that signal a cause/reason or effect/condition is about to be stated.
	www.cobb.k12.ga.us /~ar/3rdnineweeks/SampleSignalWords.doc (165 words)

	Signal Sample
		Here is a sample trade generated by the Winning Edge Swing System.
		Long Trade: You could have bought the SandP market, either emini or big SandP at about 1170.00 on 3/29/2005 as the system generated a long signal.
		I really want to thank you for devising such a fantastic signal.
	www.winningedgesystem.com /Swing_System_Sample.htm (545 words)

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