What are the applications of pulse code modulation?

Applications of Pulse Code Modulation It is used in telephony and compact discs. Pulse Code Modulation is used in satellite transmission systems and space communications.

What are the advantages and applications of PCM?

Advantages of pulse code modulation : It has a higher noise immunity. It has a higher transmitter efficiency. Easily multiplexed. Efficient SCR as well as bandwidth trade-off.

Why is PCM called pulse code modulation?

Modulation is the process of converting data into electrical signals optimized for transmission. A signal in pulse code modulation is pulse code modulated to convert its analog information into a binary sequence. This is the reason why we call PCM a modulation technique.

What is pulse code modulation PCM )? Explain its working?

Instead of a pulse train, PCM produces a series of numbers or digits, and hence this process is called as digital. In Pulse Code Modulation, the message signal is represented by a sequence of coded pulses. This message signal is achieved by representing the signal in discrete form in both time and amplitude.

What is the main advantage of PCM?

Advantages of PCM: Encoding is possible in PCM. Very high noise immunity, i.e. better performance in the presence of noise. Convenient for long-distance communication.

What are the limitations of pulse code modulation?

Following are the drawbacks or disadvantages of PCM: ➨Overload appears when modulating signal changes between samplings, by an amount greater than the size of the step. ➨Large bandwidth is required for transmission. ➨Noise and crosstalk leaves low but rises attenuation.

What are the advantages of Dpcm over PCM?

1) DPCM requires less Bandwidth than PCM for transmitting the same signal. 2) DPCM is used to decrease quantization noise. 3) The number of quantized levels is increased in DPCM. 4) In DPCM the difference between successive sample is quantized.

Which is the greatest disadvantage of pulse code modulation?

Explanation: Pulse code modulation (PCM) is a digital form of communication. For demodulation of PCM, it is necessary to convert it into PAM. Quantization noise occurs in PCM only. Its greatest disadvantage is its requirement for large bandwidth.

What is the quantization error in pulse code modulation PCM technique?

Pulse Code Modulation(PCM) • The error is called quantization error, thus the output of the quantizer is a digital level called q(nTs). • The quantized signal level q(nTs) is binary encode. The encoder converts the input signal to v digits binary word.