安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- Signal modulation - Wikipedia
Signal modulation is the process of varying one or more properties of a periodic waveform in electronics and telecommunication for the purpose of transmitting information The process encodes information in form of the modulation or message signal onto a carrier signal to be transmitted [1]
- Modulation | Definition, Types, Facts | Britannica
Modulation, in electronics, technique for impressing information (voice, music, pictures, or data) on a radio-frequency carrier wave by varying one or more characteristics of the wave in accordance with the information signal
- What is Modulation? - GeeksforGeeks
The process by which data is converted into electrical digital signals for transferring that signal over a medium is called modulation It increases strength for maximum reach of the signals The process of extracting data from the transmitted signal is called demodulation
- What is Modulation? Definition, Need of Modulation and Types . . .
Definition: Modulation, the process in which the carrier signal is varied according to the information bearing signal also called the modulating signal During modulation, some characteristics it can be amplitude, frequency, or phase is varied in accordance with the original information-bearing signal that has to be transmitted
- Types of Modulation - AM, FM, PM Modulation Modulated Signals
Modulation The process in which one of the characteristic parameter (amplitude, frequency, phase) of the carrier signal varies linearly with respect to message signal’s amplitude is called modulation Types Of Modulation Basic types of Modulation are defined with figures below Amplitude Modulation (AM)
- Modulation and Demodulation - MIT
To transmit signals with frequencies required by the communication channel, the transmitter centers the spectrum of the information signal at the transmission frequency This process of shifting the frequency spectrum of a signal is called modulation As an example human voice spans a 4 kHz range or bandwidth, and is centered at 0 kHz
|
|
|