Delta Modulation

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Delta Modulation

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Most real world signals of practical interest, such as speech, radar signals, sonar signals, and various communication signals such as audio and video signals are analog. To process an analog signal by digital means, it is vital to convert it into digital form. That is to convert it to a sequence of numbers having finite precision. This procedure is called analog-to-digital (A/D) conversion, and the corresponding devices are called A/D converters. However, modern demands for precise, fast transmission and processing of such signals coupled with the recent advances in VLSI technology has resulted in the necessity of cost-effective and highly...

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