The bandwidth of TV video plus audio signal are 4.5 MHz. If the sig evel PCM bit stream with 512 quantization levels, assume that the sig ate of 20% above nyquist rate, determine: ) Code word length per PCM. b) Transmission bandwidth. -) Final bit rate. d) Output signal to quantization nois
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- 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. Find the minimum sampling rate required. i) ii) Find minimum bit rate required in the PCM signal. Find the number of bits in each PCM word. iii) iv) Find the minimum absolute channel bandwidth required for the transmission of the PCM signal.The information in an analog waveform, whose maximum frequency fm-D4000HZ, is to be transmitted using a 16-level PAM system. The quantization must not exceed +1% of the peak-to peak analog signal. (a) What is the minimum number of bits per sample or bits per PCM word that should be used in this system? (b) What is the minimum required sampling rate, and what is the resulting bit rate? (c) What is the 16-ary PAM symbol Transmission rate?Q5/ The information in an analog waveform with maximum frequency fm = 3 KHz is to be transmitted over M-level PCM system where the number of quantization levels is M = 16. The quantization distortion is specified not to exceed 1% of peak-to-peak analog signal. What would be the maximum number of bits per sample that should be used in this PCM system? What is the minimum sampling rate and what is the resulting bit transmission rate? i) ii)
- 3. Some GPS receivers use 1 bit ADCS (Analog-to-digital Converters) to sample and quantize the signal i.e. the output of the ADC is simply 2 quantization levels: -1 or +1. This is typically done to save on power. (a) What is the quantization SNR? How does it compare to typical thermal noise SNR of a GPS signal before correlating with the CDMA code? (b) Justify, how come it is possible to sample the signal using a single bit and still get good performance.The information in an analog signal voltage waveform is to be transmitted over a PCM system with an accuracy of : 0.1 % of the peak-to-peak analog signal. The analog voltage waveform has a bandwidth of 43 Hz and an amplitude range of - 10 to 10 Vots. Determine the minimum bit rate fin bps) required in the PCM system? O a 688 O 774 O c 387 O d 86 Oe 258Perform the following functions:a. What will be the parity of the data signal to send as even parity:10111010101(0110)BCD = (---?---)2 = (---?---)Excess-3 = (---?---)Grayb. How to represent following numbers in signed representation:1. (-25)102. (-63)10
- 5- Discuss the effect of changing the number of bits on the recovered analog waveform. 6- Discuss the effect of changing the frequency of input analog signal on the reconstructed analog output signal.Problem 2: The information in an analog signal voltage waveform is to be transmitted over a PCM system with an accuracy of ± 0.1 % of the peak-to-peak analog signal. The analog voltage waveform has a bandwidth of 100 Hz and an amplitude range of – 10 to + 10 Volts. Determine the minimum sampling rate required. b. Determine the number of bits in each PCM word. c. Determine the minimum bit rate required in the PCM system. d. Determine the minimum absolute channel bandwidth required for the transmission of the PCM signal.1. With the help of Octave program perform the Modulation and Demodulation (AM) of information signal with carrier signal, through subplots with following signals a. Modulating signal b. Modulated signal c. Demodulated signal
- Choose the correct answer low HDOP (Horizontal Dilution of Precision) number such as2 indicates a ........................... a.poor fix b.good fix c.poor signal quality d. good signal qualityThe resolution of the ADC unit with the reference voltage value of 3V is set to 8 bits. If the voltage level applied to the ADC input is 1.67 V, what is the numerical value read? For numbers with commas, take 4 digits after commas.?3/ An analog signal is converted to a binary PCM signal and transmitted over a band-limited channel at 100 kHz. band-limited channel at 100 kHz. Thirty-two quantization levels are used. a/ Calculate the maximum bit rate that can be transmitted. b/ Calculate what is the maximum bandwidth that the analog signal can have.