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- The number of bits per sample in a PCM system has SNqR=45 dB is?For a binary pcm, if the number of bits per sample is 8, then estimate the signal to quantization noise ratio.1/ A 4 MHz analog signal is to be converted to a binary signal (PCM). If the signal to peak quantization noise ratio should be at least 30 dB: a/ What is the size of the code word? b/ What is the system rate in bits per second if sampled at the Nyquist rate?
- A PCM system is used to transmit base4 signal of 512 level, the input signal works in the range between (30 to 70) MHz. Find the bit rate and signal to noise ratio in dB? Note that: the step size is considered to be double of system levels? *Compare the bit error probability performance of a BPSK and QPSK systemIn a digital communication, explain all the methods/mechanism used for the minimization of Bit Error Rate (BER). Also state that which method/mechanism is preferred and why?
- In the figure below, an x(t) signal varying between +- 1.6 V is split into 8 quanta levels and converted to a digital signal. being converted. a) Calculate the quantization gap voltage (step)? b) Draw the PAM, PCM and ASK outputs in this conversion process? c) Calculate bit transmission rate if sampling pulse frequency ?? = 2kHz.Observe the encoded binary signal. What type of Line Encoding format was used for the binarysequence 10010?In a PCM system, 8 bit uniform quantiser is used. How many quantizing levels will be present if the quantiser is of uniform type?
- For binary pcm, if 7 is the number of bits per sample, then what will be signal to quantization noise ratio?Explain why we need both Analogue as well as Digital Signals? Also, elaborate the process of converting An Analogue signal into Digital SignalDesign a system called a parallel binary comparator, that compares the 4 – bit binary string A to the 4 – bit binary string B. If the strings are exactly equal, provide a HIGH – level output to drive a warning buzzer.