децибел (dB)

децибел (dB)

The standard unit used to express the ratio of two power levels. It is used in communications to express either a gain or loss in power between the input and output devices.

0 0

향상

이미지 추가

품사: 명사
동의어:
용어블로그:
분야/도메인: 항공우주
카테고리: 위성
Company:
제품:
두문어-약어:

자세히

내 용어집에 추가

기타 언어:

자세히

하고 싶은 말

유사 용어 보기

децибел( dB)

에너지; 풍력

is a unit of measurement that is used to indicate the relative amplitude of a sound or the ratio of the signal level such as sound pressure. Sound levels in decibels are ...

децибел

물리; 음향

A logarithmic scale applied to any parameter, including for measuring sound level.

децибел

물리; 일반 물리학

Unit of sound level, if P1 & P2 are two amounts of power, the first is said to be n decibels greater, where n = 10 log10 (P1/P2)

децибел

자연 환경; 산호초

Unit for measuring sound intensity.

гигахерц (GHz)

항공우주; 위성

One billion cycles per second. Signals operating above 3 Gigahertz are known as microwaves. above 30 GHz they are know as millimeter waves. As one moves above the millimeter waves ...

фреквенција

항공우주; 위성

The number of times that an alternating current goes through its complete cycle in one second of time. One cycle per second is also referred to as one hertz; 1000 cycles per ...

сателит

항공우주; 위성

A sophisticated electronic communications relay station orbiting 22,237 miles above the equator moving in a fixed orbit at the same speed and direction of the earth (about 7,000 ...

параболична антенаме

항공우주; 위성

The most frequently found satellite TV antenna, it takes its name from the shape of the dish described mathematically as a parabola. The function of the parabolic shape is to ...