| frequency |
The number of cycles or completed alternations per unit time of a sound wave, most often measured in Hertz. Frequencies commonly used in conventional side scan sonar range from 25 to 450 kHz. Although pulse widths and beam angles vary in different sonars and at different frequencies within the same system, generally higher frequencies provide a higher level of resolution with a sacrifice in range.
출처: www.instituteformarineacoustics.org/SonarPrimer/da...
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| frequency distribution |
(446) A table that pairs each item in a set of data with its frequency.
출처: www.wtvl.net/honda/glossarypre.htm
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| frequency |
For a function periodic in time, the reciprocal of the period. Unit, hertz (Hz).
출처: users.aol.com/inceusa/glossary.html
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| frequency |
the rate at which an event will reoccur; the reciprocal of the period. In radiation, the number of wave crests that pass by a point each second, described in hertz.
출처: k12.ocs.ou.edu/teachers/glossary/f.html
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| frequency |
The term in physics, that refers to a number of vibrations or cycles that occur within a given time.
출처: www.precisionautosound.net/glossary.html
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