Delta modulation is a digital signal processing technique that is used for the conversion of analog signals into digital signals. In this technique, the amplitude of the analog signal is sampled at a regular interval, and the difference between the successive samples is quantized.
Delta modulation uses a simple algorithm where the digital value of the signal is generated based on the change in amplitude of the signal at every sample point. This is done by comparing the analog signal with the previous sample value, and if the signal has increased, a binary value of “1” is assigned, and if the signal has decreased, “0” is assigned.
Delta modulation is a straightforward technique and requires a smaller amount of memory to store the signal. However, the main disadvantage of this technique is that it is highly sensitive to noise due to its small signal values. Therefore, this technique is not suitable for use in high-noise environments.
explain delta modulation
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