Autocorrelation is the cross-correlation of a signal with itself.

Autocorrelation of the signal can be analyzed in terms of the diffusion of the particles.

Autocorrelation is defined as the cross-correlation of the signal with itself over varying intervals of time or space.

* Autocorrelation function, mathematical tool used frequently in signal processing

Autocorrelation of the errors, which themselves are unobserved, can generally be detected because it produces autocorrelation in the observable residuals.

Autocorrelation violates the ordinary least squares ( OLS ) assumption that the error terms are uncorrelated.

* Autocorrelation is used to analyze Dynamic light scattering data, which notably enables to determine the particle size distributions of nanometer-sized particles or micelles suspended in a fluid.

* Autocorrelation in space rather than time, via the Patterson function, is used by X-ray diffractionists to help recover the " Fourier phase information " on atom positions not available through diffraction alone.

* Autocorrelation articles in Comp. DSP ( DSP usenet group ).

Autocorrelation can be visualized on a data plot when a given observation is more likely to lie above a fitted line if adjacent observations also lie above the fitted regression line.

Autocorrelation is common in time series data where a data series may experience " inertia.

Autocorrelation may be the result of misspecification such as choosing the wrong functional form.

Autocorrelation methods need at least two pitch periods to detect pitch.

* Sieves for Low Autocorrelation Binary Sequences, IEEE Trans.

Autocorrelation analysis helps to identify the correct phase of the fitted model while the successive differencing transforms the stochastic drift component into white noise.

The missile detects the reflected signal from the target with a high gain antenna in a similar fashion and steers the entire missile toward closure with the target.

When the keyboard processor detects that a key has changed state, it sends a signal to the CPU indicating the scan code of the key and its new state.

Bus errors are usually signaled with the SIGBUS signal, but SIGBUS can also be caused by any general device fault that the computer detects.

* a transmitting data station that detects another signal while transmitting a frame, stops transmitting that frame, transmits a jam signal, and then waits for a random time interval before trying to resend the frame.

Even if RAIM detects a loss of integrity in these cases, it may not be able to provide a useful, reliable signal.

Frequently considered cases of GHZ experiments are concerned with observations obtained by three measurements, A, B, and C, each of which detects one signal at a time in one of two distinct mutually exclusive channels or outcomes: for instance A detecting and counting a signal either as ( A ↑) or as ( A ↓), B detecting and counting a signal either as ( B «) or as ( B »), and C detecting and counting a signal either as ( C ◊) or as ( C ♦).

The main idea of ' coincidence detection ' in signal processing is that if a detector detects a signal pulse in the midst of random noise pulses inherent in the detector, there is a certain probability,, that the detected pulse is actually a noise pulse.

NDB navigation consists of two parts — the automatic direction finder ( or ADF ) equipment on the aircraft that detects an NDB's signal, and the NDB transmitter.

An opto-isolator contains a source ( emitter ) of light, almost always a near infrared light-emitting diode ( LED ), that converts electrical input signal into light, a closed optical channel ( also called dielectrical channel ), and a photosensor, which detects incoming light and either generates electric energy directly, or modulates electric current flowing from an external power supply.

These are devices with a photosensor that detects the electron beam and sends a signal to the attached computer.

On UTP cable a local collision is detected on the local segment only when a station detects a signal on the RX pair at the same time it is sending on the TX pair.

The receiver detects and evaluates the intensity fluctuations of the transmitted signal, called scintillation.

Both MSG-1 and MSG-2 carry a DCP service and a Search and Rescue signal Processor ( SARP ) that detects 406 MHz distress signals from distress radiobeacons.

For this reason, modern hybrids use digital signal processing to implement an adaptive least mean squares filter that automatically detects the line ’ s impedance across the voice frequency range and adjusts to it.

It works by sending an ultrasonic signal into the rail, which detects characteristic patterns in the reflected ultrasound since anomalies within the steel reflect ultrasonic energy.

In 2147, two years after the events of Doom 3, the UAC detects a strange signal from one of its Martian satellites, and consequently sends a team in to investigate.

Should a driver pass the signal at ' danger ', a track circuit or treadle detects this and causes the SPAD indicator to flash red lights to warn the driver of his error.

** The signal quality error test detects silent failures in the circuitry.

Modern racons are frequency-agile ; they have a wide-band receiver that detects the incoming radar pulse, tunes the transmitter and responds with a 25 microsecond long signal within 700 nanoseconds.

The " false head " effect is further reinforced by the bugs ' habit of walking backwards when it detects movement nearby, so as to misdirect predators to strike at its rear, rather than at its actual head.

S. A. Hamed Hosseini ( an Australian sociologist and expert in global social movement studies ), argues that the term anti-globalization can be ideal-typically used only to refer to only one ideological vision he detects alongside three other visions ( the anti-globalist, the alter-globalist and the alter-globalization ).

After a surface ship, patrol plane or anti-submarine helicopter detects an enemy submarine by using sonar or other sensors, it could relay the sub's position to an ASROC-equipped ship for attack.

Most frogs identify prey by movement, and vision appears to be the primary method by which the cane toad detects prey ; however, the cane toad can also locate food using its sense of smell.

If the operating system detects that a program has tried to alter memory that does not belong to it, the program is terminated.

This variant too detects any single-bit error, but the probability that a two-bit error will go undetected is a little less than 1 / n.

While using Cerebra and talking to Beast during the Messiah Complex storyline, Charles detects a new mutant so powerful it fries Cerebra's system.

# A sensor detects traffic is approaching.

If the spacecraft detects an anomaly, it changes the carrier between four tones, based on urgency.

While Adeline is alone in her characteristically Gothic chamber, she detects something supernatural, or mysterious about the setting.

Primarily, it detects peptidoglycan, which is present in a thick layer in Gram positive bacteria.

It detects the emission of nuclear radiation: alpha particles, beta particles or gamma rays by the ionization produced in a low-pressure gas in a Geiger – Müller tube, which gives its name to the instrument.

Additionally, a newer protection involving timestamping is used when a server splits away from the main network ( when it no longer detects that IRC services are available ), it disallows anyone creating a channel to be given operator privileges.

In the fall of 2006, researchers developed and installed an " autonomous observatory " using robotic video cameras with image processing software that detects and records high resolution video of birds in flight inside a high probability zone in the Cache River area.

It detects syntax errors as early in the input stream as possible.

# RecA ( a cellular protein ) detects DNA damage and becomes activated.

The interpreter detects the datatype by context.

: If the watch-dog detects an intruder, the dog will bark.

Supposing that the premises are both true ( the dog will bark if it detects an intruder, and does indeed not bark ), it follows then that no intruder has been detected.

( It is conceivable that there may have been an intruder that the dog did not detect, but that does not invalidate the argument ; the first premise goes " if the watch-dog detects an intruder.

" The thing of importance is that the dog detects or doesn't detect an intruder, not if there is one.

On recent motherboards, the BIOS may also patch the central processor microcode if the BIOS detects that the installed CPU is one in for which errata has been published.