radar echo


Also found in: Dictionary, Thesaurus.

radar echo

[′rā‚där ‚ek·ō]
(electronics)

radar echo

i. The electromagnetic energy received after reflection from an object. Also called a radar return. See echo.
ii. The deflection or change of intensity produced by a radar echo on a cathode-ray tube display. It is a display of reflected radar energy from an object on a radar display. Also called a radar return.
References in periodicals archive ?
Anagnostou et al., "The probability of hail in relation to radar echo heights on the South African Highveld," Journal of Applied Meteorology, vol.
Due to processing radar echoes in spatial frequency domain, this algorithm improves the calculation efficiency greatly.
Now, the simulation of wideband radar echo of ballistic midcourse target with precession is mostly on the basis of ideal scattering centers, and the movement of these scattering centers is equaled to the precessional movement of the target.
We observed clear indications of passerine involvement from the radar echo signatures of varying echo-strength typical of intermittent flight, a conclusion also supported by the low airspeeds measured in area C (cf.
Representing with characteristic prototypes the different objects to be recognized it is possible to detect them in each radar echo.
Chu's findings led to the unexpected observation that applies even today: At frequencies even far off dipole resonance, the greater the length of a dipole compared to its diameter, or the narrower the dipole (length-to-diameter ratio), the greater the size of the radar echo produced by a given weight of foil.
The PID may be in error if unusual or contaminated radar echoes occur, but it is quite useful for identifying the general structure of convection.
The distribution and evolution of hourly precipitation were quite similar to that of radar echo observations (Figure 6), suggesting that the corrected radar reflectivity assimilated by LAPS can provide optimal initial condition for numerical models.
Therefore, the space-domain steering vector a([theta], R) of OFDM radar echo signal includes direction steering vector a([theta]) in (14) and distance steering vector a(R), that is,
The FAA determined the weather-affected area of the air traffic management unit according to the weather radar echo and the 30-minute earlier short-term forecast to investigate the impact of inclement weather conditions on route network analysis in tactical air traffic flow management (ATFM) phase.
In fact, it triggers the waveform generator, that is, the DAC, to send a pulse train while, at the same time, it enables the acquisition window, in order to receive and convert the radar echo (see Figure 7).

Full browser ?