correlation receiver

A radio-astronomy receiver in which either the noise power from a single antenna is split and multiplied with itself or the noise power from the two arms of an interferometer (see radio telescope) are multiplied together. Signals that are uncorrelated (completely unrelated) give an output whose average value is zero when multiplied together. Correlated signals, however, produce components near zero frequency that give a steady deflection in the output of the multiplier. In addition to their use in radio interferometry, correlation receivers are also used to reduce the effect of interference and of changes in the gain and other parameters of the system. See also phase-switching interferometer.

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References in periodicals archive ?

Then the received signal is demodulated using coherent BPSK receiver (i.e., correlation receiver) and matched filtering is followed by despreading the demodulated signal at the receiver side.

A New Scheme for Spreading & De-spreading in the Direct Sequence Spread Spectrum Mechanism

It is well known that the BER of a correlation receiver is [P.sub.e] = Q([square root of ([E.sub.b](1 - [rho])/[N.sub.0])]), where [E.sub.b] = 1/[E.sub.b] [[integral].sup.T.sub.0] [s.sup.2.sub.0](t)dt and [rho] = 1/[E.sub.b] [s.sub.0](t)[s.sub.1](t)dt [15].

Pulse dual slope modulation for VLC

Hence CDMA receiver may combine the time-shifted versions of the original signal by providing a separate correlation receiver for each of the multipath signals.

Performance Enhancement of Downlink Multiuser DS-CDMA Detectors in Multipath Channels over AWGN Channels

Correlation receiver is a widely used method of detecting objects in free space.

However, the correlation receiver does not operate well for a GPR because the waveform of the received GPR signal is distorted by the dispersive media underground, and the received signal model described by (2) is not valid.

Fast detection of GPR objects with cross correlation and Hough transform

Consider using a correlation receiver to coherently demodulate the desired user's signal.

TH-UWB receiver based on two PDFs approximation in multiuser systems

Basically, this is a coherent radar transmitting preregistered pseudorandom signals and using a correlation receiver (or a mismatched, range-side lobe suppression receiver).

Noise radar technology as an interference prevention method

Assuming a correlation receiver, the optimal template v(f) should be matched to the received pulse.

Amplify-and-forward cooperative diversity for green UWB-based WBSNs

It is supposed that the correlation receiver is matched to the (K+1)-th transmitter spreading sequence [c.sub.K+1].

Probability distribution of multiple-access interference in chaotic spreading codes based on DS-CDMA Communication System/Daugkartinio priejimo interferencijos tikimybes pasiskirstymo tankis rysio sistemose su kodinio atskyrimo kanalais

In the case of the correlation receiver detector, UWB and gate pulses are multiplied to produce a short output unamplified pulse whenever there is a coincidence.

HISTORY OF ULTRA WIDEBAND COMMUNICATIONS AND RADAR: PART I, UWB COMMUNICATIONS

Teplee, "BER performance of UWB communications with matched filter and correlation receivers," in Proceeding of the ECTI International Conference, 2007

The Rainfall Intensity Effects on 1-13 GHz UWB-Based 5G System for Outdoor Applications

The proposed methods include arrays of emitters and trains of pulses in conjunction with correlation receivers.

HISTORY OF ULTRA WIDEBAND COMMUNICATIONS AND RADAR: PART II, UWB RADARS AND SENSORS