Q2/ The information in an analog signal voltage waveform is to be transmitted over a PCM system with an accuracy of ±0.1% (full scale). The analog voltage waveform has a bandwidth of 100 Hz and an amplitude range of -10 to +10 volts. i) Find the minimum sampling rate required. (ans. f; 2 200 Hz ii) Find the number of bits in each PCM word. (ans. n = Find minimum bit rate required in the PCM signal. (ans.r > iii) 2800 bits/sec) 14 bits) iv) Find the minimum absolute channel bandwidth required for the transmission of the PCM signal. (ans. BW > 1400 Hz)
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
This topic is widely taught in many undergraduate and postgraduate degree courses of:
Step by step
Solved in 5 steps with 5 images
