digital modulation उदाहरण वाक्य

Two-way radio systems using digital modulation schemes such as TDMA can embed unit ID and selective calling into the data stream multiplexed in parallel with the voice.
These encoders can be placed before for binary data source, but have been placed after to illustrate the conceptual difference between digital and analog signals involved with digital modulation.
In practice, however, digital modulation protocols are much more susceptible to multipath interference and fail to provide service in areas where analogue FM would otherwise provide degraded but audible voice service.
For digital modulation schemes it has been shown that for properly implemented on-off keying / amplitude-shift keying systems, rejection can be better than for frequency-shift keying systems.
An "'M-ary transmission "'is a type of digital modulation where instead of transmitting one bit at a time, two or more bits are transmitted simultaneously.

Weightless-N is designed around a differential binary phase shift keying ( DBPSK ) digital modulation scheme to transmit within narrow frequency bands using a frequency hopping algorithm for interference mitigation and enhanced security.
Link spectral efficiency is typically used to analyse the efficiency of a digital modulation method or line code, sometimes in combination with a forward error correction ( FEC ) code and other physical layer overhead.
The system employs digital modulation formats, transmission of information and signal compression, Making it possible to place in the frequency range of a single analog channel, several digital channels with much higher quality.
Analog and digital modulation facilitate frequency division multiplexing ( FDM ), where several low pass information signals are transferred simultaneously over the same shared physical medium, using separate passband channels ( several different carrier frequencies ).
In the first case, a signal that is generated by means of a digital modulation method is considered as converted to an analog signal, while it is considered as a digital signal in the second case.