A sinusoidal signal v (t) =20 Cos (2 nt) is transmitted using a 5-bit binary PCM system. The equalizer is of a midrise type, with a step size of 2 volt. Determine the minimum step size for delta modulation of the sinusoidal signal v (t) =20 Cos (2 at) which is required to avoid slope overload (assume sampling = nyquist rate).
Quantization and Resolution
Quantization is a methodology of carrying out signal modulation by the process of mapping input values from an infinitely long set of continuous values to a smaller set of finite values. Quantization forms the basic algorithm for lossy compression algorithms and represents a given analog signal into digital signals. In other words, these algorithms form the base of an analog-to-digital converter. Devices that process the algorithm of quantization are known as a quantizer. These devices aid in rounding off (approximation) the errors of an input function called the quantized value.
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