A technique by which analog signal gets converted into digital form in order to have signal transmission through a digital network is known as Pulse Code Modulation. It is abbreviated as PCM. It is basically signal coders also known as waveform coders.

Learn about Pulse Code Modulation (PCM) in Digital Communication, including its principles, applications, and advantages.

The basic block diagram of PCM is given below for better understanding. To get a pulse code modulated waveform from an analog waveform at the transmitter end (source) of a communications circuit, the amplitude of the analog signal samples at regular time intervals.

Learn about the block diagram of a PCM system, including its components and their functions. Understand how data is encoded and decoded using PCM technology.

Apr 1, 2025 · Pulse Code Modulation (PCM) is a digital modulation technique where the analog signal is coded into digital pulses. Here, we will see the block diagram of the PCM system or Pulse Code Modulation system to understand its working principle.

Aug 24, 2023 · Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals. Learn its block diagram, steps, types, advantages, and applications.

Block diagram of the Pulse Code Modulation process is as shown in the figure below. In the PCM process, it is possible to digitise all forms of analog data, including music, telemetry, voice, full-motion video.

Apr 15, 2016 · Fig.2 shows a practical block diagram of a PCM generator or transmitter. Fig.2 : PCM Transmitter. In PCM transmitter , the signal x (t) is first passed through the low-pass filter of cut-off frequency f m Hz .

Mar 17, 2025 · The block diagram of the Pulse Code Modulation system is shown below: The components of a PCM system are a low pass filter, sampler, quantizer, encoder, communication channel, quantizer, decoder, and a reconstruction filter.

Figure 1 shows a system block diagram of PCM. Some key components of PCM are described as follows. Sampling: The process is the same as the sampling process in PAM—transforming the incoming continuous-time signal into a discrete-time signal.