![]() ![]() Here t is the continuous time variable and n is the sequence order. The process of converting an analog signal (denoted as x(t)) to a digital signal (denoted as x(n)) is called the analog-to-digital conversion (referred to as digitization), usually performed by an analog-to-digital converter (ADC). They can thus be represented as the sequence of numbers with a continuous range of values. Discrete-time signals are defined only at a particular set of time instances. The first step in this process is to convert the real-time signal into discrete-time signals. ![]() ![]() In order to process these signals to obtain meaningful information, they need to be converted to a format which is easily handled by computing resources like microprocessors, computers etc. These signals are defined continuously in time and have an infinite range of amplitude values. The real-life signals that we encounter in our day to day basis are mostly analog signals. Study of the sampling theorem, the effect of undersampling. ![]()
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