Digital Communication 1 min read
Pulse Code Modulation (PCM)
This type of modulation is different from all modulations learnt so far. It is clear from the block diagram given…
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Digital Communication 2 min read
Pulse Position Modulation
In this type of modulation, both the amplitude and width of the pulse are kept constant. We vary the position…
Digital Communication 2 min read
Pulse Time Modulation (PTM)
Here the pulses will have the same amplitude. However, one of their timing characteristics is made proportional to the amplitude…
Digital Communication 1 min read
Pulse Width Modulation
Pulse Width Modulation (PWM) or Pulse Duration Modulation (PDM) or Pulse Time Modulation (PTM) is an analog modulating scheme in which the duration or width…
Digital Communication 1 min read
Types of Pulse Amplitude Modulation
There are two major types of PAMs: Single polarity PAM: Here, an appropriate fixed DC bias is integrated with the signal…
Digital Communication 1 min read
Pulse Amplitude Modulation
Pulse amplitude modulation is defined as the data transmission by altering the amplitudes (power levels or voltage) of every pulse…
Digital Communication 2 min read
Sampling Theorem for Low Pass Signals
The low pass signals having the low range frequency and whenever this type of low-frequency signals need to convert to…
Digital Communication 2 min read
Nyquist Sampling Theorem
In the sampling process, while converting the analog signal to a discrete version, the chosen sampling signal is the most…
Digital Communication 3 min read
What is the Sampling Theorem?
A signal has three properties like voltage or amplitude, frequency, phase. The signals are represented only in an analog form where the…
Digital Communication 3 min read
Aliasing, Anti-aliasing
In electronics it’s not about changing a name, but it is about the very gross distortions that can happen in…
Digital Communication 2 min read
Sampling
Sampling is defined as, “The process of measuring the instantaneous values of continuous-time signal in a discrete form.” Sample is a piece…
Digital Communication 4 min read
Digital Communication System
The transmission of information from the sender to the recipient through some medium is called as communication. Communication enables us…
