Mani Raj Paul - Delta Modulaton

Delta Modulation

modulatin, in which the sampling rate is much higher and in which the stepsize after quantization is of a smaller value Δ, such a modulation is termed as delta modulation.

Features of Delta Modulation

Following are some of the features of delta modulation.
  • An over-sampled input is taken to make full use of the signal correlation.
  • The quantization design is simple.
  • The input sequence is much higher than the Nyquist rate.
  • The quality is moderate.

  • Delta Modulator

    The Delta Modulator comprises of a 1-bit quantizer and a delay circuit along with two summer circuits. Following is the block diagram of a delta modulator.


     

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