Published on July 6, 2015
For more course tutorials visit www.uoptutorial.com Computer Science - General Computer Science 1. Determine the Nyquist sample rate for a maximum analog input frequency of: (a) 4 KHz 10 KHz 2. Determine the dynamic range for a 10-bit sign-magnitude PCM code. 3. Determine the minimum number of bits required in a PCM code for a dynamic range of 80 dB. What is the coding efficiency? 4. For a resolution of 0.04 V, determine the voltages for the following linear seven- bit sign magnitude PCM codes 5. Determine the resolution and quantization error for an eight-bit linear sign magnitude PCM code for a maximum decoded voltage of 1.27 V 6. For a 12-bit linear PCM code with a resolution of 0.02 V, determine the voltage range that would be converted to the following PCM codes. 7. A µ-law compression encoder has ECET 310 Week 6 Assignment Homework 6_1 Computer Science - General Computer Science 1. For a 64-PSK modulator with an input data rate(fb) equal to 36 Mbps and a carrier frequency of 100 MHz, determine the minimum double-sided Nyquist bandwidth(fN) and the baud. Sketch the output spectrum. 2. Determine the bandwidth efficiency for the following modulators: (a) QPSK = (b) 64-QPSK = (c) 128-QAM= 3. A radio channel has a bandwidth of 10 KHz and a SNR of 15 dB. What is the maximum data rate that can be transmitted: a) Using any system? b) Using a code with 64 possible states? 4. A modulator transmits symbols, each of which has 64 different possible states, 15,000 times per second. Calculate the baud rate and the bit rate 5. What is the shannon limit for a standard telephone circuit with an SNR of 30 dB and a bandwidth of 3.3 KHz? 6. What is the maximum data rate possible for a standard telephone circuit with an SNR of 1023 and BW of 3 KHz using 8 bits per symbol?