Q2. Number of information signals are multiplexed with 20KHZ sampling frequency, and f(t) max = If (t)Imin = 6 v. and entered to pulse modulator: %3D i. If PDM used and part of PDM-TDM spectrum is shown below with maximum and minimum guard bands are 10us, 4.5 us, respectively Find KPDM: If the modulator is PAM Sketch the 3rd time frame where; K PAM = 1, (assume t = Tg). If the modulator is PPM, how can generate the PPM signals from PDM spectrum, with pulse width is 2us. ii. 111.
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.
Probability of Error
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