Doppler velocity and position
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doppler navigation — noun Usage: usually capitalized D : navigation (as of an airplane) in which the change of frequency of reflected radar waves due to the Doppler effect is utilized by automatic devices to give information on velocity and position … Useful english dictionary
Doppler effect — Change of wavelength caused by motion of the source. An animation illustrating how the Doppler effect causes a car engine or siren to soun … Wikipedia
Doppler spectroscopy — Diagram showing how a smaller object (such as an extrasolar planet) orbiting a larger object (such as a star) could produce changes in position and velocity of the latter as they orbit their common center of mass (red cross). Doppler spectroscopy … Wikipedia
Doppler navigation — i. Dead reckoning performed automatically by a device that gives a continuous indication of position by integrating the speed derived from measuring the Doppler effect of echoes from directed beams of radiant energy transmitted from the craft.… … Aviation dictionary
Doppler ultrasound — n ultrasound that utilizes the Doppler effect to measure movement or flow in the body and esp. blood flow called also Doppler ultrasonography * * * a diagnostic technique that utilizes the fact that the frequency of ultrasound waves changes when… … Medical dictionary
Doppler ultrasound — a diagnostic technique that utilizes the fact that the frequency of sound or light waves changes when they are reflected from a moving surface (the Doppler effect). It is used to study the flow in blood vessels and the movement of blood in the… … The new mediacal dictionary
Transcranial doppler — (TCD) is a test that measures the velocity of blood flow through the brain s blood vessels. Used to help in the diagnosis of emboli, stenosis, vasospasm from a subarachnoid hemorrhage (bleeding from a ruptured aneurysm), and other problems, this… … Wikipedia
Acoustic Doppler Current Profiler — Head of an ADCP with the four transducers ADCP view ahead, mo … Wikipedia
Solar and Heliospheric Observatory — Infobox Space telescope name = Solar and Heliospheric Observatory (SOHO) caption = organization = ESA / NASA alt names = nssdc id = location = L1 orbit type = height = 1.5×106 km (heliocentric) period = 1 Earth year velocity = accel gravity =… … Wikipedia
rocket and missile system — ▪ weapons system Introduction any of a variety of weapons systems that deliver explosive warheads to their targets by means of rocket propulsion. Rocket is a general term used broadly to describe a variety of jet propelled missiles… … Universalium
Constant Altitude Plan Position Indicator — Cappi de réflectivité à 1,5 km d altitude par le radar de Montréal(Source Environnement Canada) La Vue Panoramique à Altitude Constante plus connue sous l acronyme de CAPPI (Constant Altitude Plan Position Indicator) est un affichage qui donne… … Wikipédia en Français
