Adaptive Delta Modulation:- In Adaptive Delta Modulation, the sampled input signal is fed into a summing circuit, where it is compared to the predicted signal from the accumulator. The difference (or error) is processed by the one-bit quantizer, which outputs a binary value indicating the direction of the error. This output is used to update the accumulator, which then predicts the next signal value. e logic step-size controller adjusts the step size based on the characteristics of the input signal. If there's a large change in the input, the step size is increased to quickly adapt, whereas for minor changes, the step size is decreased to reduce granular noise. This adaptive step size helps the system accurately track the input signal while minimizing errors.
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Adaptive Delta Modulation:-
In Adaptive Delta Modulation, the sampled input signal is fed into a summing circuit, where it is compared to the predicted signal from the accumulator. The difference (or error) is processed by the one-bit quantizer, which outputs a binary value indicating the direction of the error. This output is used to update the accumulator, which then predicts the next signal value. e logic step-size controller adjusts the step size based on the characteristics of the input signal. If there's a large change in the input, the step size is increased to quickly adapt, whereas for minor changes, the step size is decreased to reduce granular noise. This adaptive step size helps the system accurately track the input signal while minimizing errors.
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Block diagram is same as delta modulating