- echo amplitude
- 回波振幅
Atmospheric Sciences (English-Chinese) dictionary. 2014.
echo amplitude
Look at other dictionaries:
Echo cancellation — The term echo cancellation is used in telephony to describe the process of removing echo from a voice communication in order to improve voice quality on a telephone call. In addition to improving subjective quality, this process increases the… … Wikipedia
Radio Echo Sounding — Ein Bodenradar, auch Georadar, engl. Ground Penetrating Radar (GPR) oder Radio Echo Sounding (RES), misst Störungen in den oberen Schichten des Erdbodens durch Reflexion elektromagnetischer Strahlung. In der Geophysik dient es zur Untersuchung… … Deutsch Wikipedia
A-mode — In diagnostic ultrasound, a one dimensional presentation of a reflected sound wave in which echo amplitude (A) is displayed along the vertical axis and echo delay (depth) along the horizontal … Medical dictionary
Space-Based Radar — refers to space borne radar systems that may have any of a variety of purposes. A number of earth observing radar satellites, such as RadarSat, have employed synthetic aperture radar (SAR) to obtain terrain and land cover information about the… … Wikipedia
compensation — 1. A process in which a tendency for a change in a given direction is counteracted by another change so that the original change is not evident. 2. An unconscious mechanism by which one tries to make up for fancied or real deficiencies. [L. com… … Medical dictionary
enhancement — 1. The act of augmenting. 2. In immunology, the prolongation of a process or event by suppressing an opposing process. acoustic e. a manifestation of increased echo amplitude returning from regions beyond an object, such as a fluid filled cyst,… … Medical dictionary
shadow — 1. A surface area defined by the interception of light or x rays by a body. SEE ALSO: density (3). 2. In jungian psychology, the archetype consisting of collective animal instincts. 3. SYN: achromocyte. a … Medical dictionary
ultrasonography — The location, measurement, or delineation of deep structures by measuring the reflection or transmission of high frequency or ultrasonic waves. Computer calculation of the distance to the sound reflecting or absorbing surface plus the known… … Medical dictionary
Imagerie par résonance magnétique — Pour les articles homonymes, voir IRM et MRI. L imagerie par résonance magnétique (IRM) est une technique d imagerie médicale permettant d obtenir des vues 2D ou 3D de l intérieur du corps de façon non invasive avec une résolution relativement… … Wikipédia en Français
résonance — [ rezɔnɑ̃s ] n. f. • v. 1450 mus.; de résonner 1 ♦ Prolongement ou amplification des sons dans certains milieux sonores (⇒ résonner). « Dans ce tombeau, un grignotement de rat [...] prenait des résonances étranges » (Gautier). Caisse de résonance … Encyclopédie Universelle
Animal echolocation — Echolocation, also called biosonar, is the biological sonar used by several animals such as dolphins, shrews, most bats, and most whales. The term was coined by Donald Griffin, who was the first to conclusively demonstrate its existence in bats.… … Wikipedia
