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

完善词条

添加图像

词性：名词
同义词：
词汇：
行业/领域：航空航天
类别卫星
Company:
产品：
取首字母的缩写词：

添加至 My Glossary

其他语言：

类似词条

дигитално видео емитување

航空航天; 卫星

The European-backed project to harmonise adoption of digital video.

задоцнување

航空航天; 卫星

The time it takes for a signal to go from the sending station through the satellite to the receiving station. This transmission delay for a single hop satellite connection is very ...

демодулатор

航空航天; 卫星

A satellite receiver circuit which extracts or "demodulates" the "wanted "signals from the received carrier.

девијација

航空航天; 卫星

The modulation level of an FM signal determined by the amount of frequency shift from the frequency of the main carrier.

дигитален

航空航天; 卫星

Conversion of information into bits of data for transmission through wire, fiber optic cable, satellite, or over air techniques. Method allows simultaneous transmission of voice, ...

декодер

航空航天; 卫星

A television set-top device which enables the home subscriber to convert an electronically scrambled television picture into a viewable signal. This should not be confused with a ...