echo signal

echo signal

[′ek·ō ‚sig·nəl]
(electromagnetism)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

echo signal

The radar energy returned to a radar by a target. The amount of this energy is called received power. Also called a video signal or a target signal.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
A tight 0.5 ft dead-band maximizes filling tank capacity, and Echo-safe calibration eliminates false echo signal returns while fail-safe intelligence provides for maximum process safety.
It is mounted in a compact enclosure and is designed to electronically attack the Lab-Volt Tracking Radar by masking the target echo signal with noise and cause range or angle deception.
Of course it is observed only from the current echo signal. Consider this problem in another way.
For this purpose, the echo signal model of the MIMO radar with orthogonal frequency division multiplexing linear frequency modulated (OFDM-LFM) waveforms--termed OFDMMIMO radar--is presented first.
We demonstrated that ultrasonic waves, properly processed and delivered into the inferior colliculus, by means of implanted electrodes, gave rise to a brain response modulated by echo signal features suggesting that spatial information sent by our stimulation signal was efficiently interpreted and encoded by the auditory system.
Luo, "Estimating the parameters of ultrasonic echo signal in the Gabor transform domain and its resolution analysis," Signal Processing, vol.
From the curve of displacement versus time in Figure 4, it can be seen that there are two groups of sine signals with ten cycles which are the passing signal and end echo signal, respectively.
Similarly, we can get directly-reflected path echo signal as follows:
The received echo signal was amplified (20 dB), bandpass filtered (1-35 MHz) by the pulser-receiver, and then displayed (500Ms/s) on a digitizing oscilloscope (Model 9374L, LeCroy, Chestnut Ridge, N.Y.).
These four complex numbers represent the amplitude and phase (or in-phase and quadrature components) of the received target echo signal for the specified combination of transmitter and receiver polarizations.
Simple detection of the presence of an echo signal may not satisfy this criterion.