Digital Signal Processing Salivahanan

[Fortun Bawa]

Digitaldomain provides various advantages like noise immunity, flexibility of implementation, easy data storage, low power consumption, scalability etc. over analog domain, as published by Pelgrom (2010). However all the natural signals are analog, digitizations is required for processing by means of sampling and quantization. Though due to quantization some information loss is occur in the form of quantization error but this error can be minimized by altering the number of quantization levels as per Freeman (2005). In addition to that signal processing are simpler and more reliable in digital domain with lower cost. As a result technology switches over to digital domain, according to Proakis (2007) and Salivahanan and Gnanapriya (2011). This technology swap creates a revolution in information technology and data transmission over digital channels or in World Wide Web as published by Wolinsky Art (1999). Over and above the immense advantages offered by the Digital domain creates a boom in digital systems by means of digital consumer devices, according to the publication of Dhir (2004).

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