ght sources, each with a bit rate of 1000 kbps are to be combined using synchronous TDM. Each output ot carries 1 bit from each source. Answer the following questions a. What is the size of an output frame in bits? b. What is the duration of an input slot? c. What is the duration of an output slot? d. What is the output frame rate? What is the data rate of the multiplexed path? e
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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.Most Digital transmission are "self-clocking " in that they derive the bit synchronization from the signal itself. To do this, the system use the transitions between positive and negative voltage levels. These transition help define the boundaries of the bit intervals. a) Plot the NRZ-L signal for the data stream 4 bits of 1s followed by 4 bits of Os. Explain why this code has a synchronization problem? b) Repeat part ) for Manchester encoding scheme and explain how the synchronization problem has been addressed.Question 2: Eight sources, each with a bit rate of 1000 kbps are to be combined using synchronous TDM. Each output slot carries 1 bit from each source. Answer the following questions a. What is the size of an output frame in bits? b. What is the duration of an input slot? c. What is the duration of an output slot?| d. What is the output frame rate? e. What is the data rate of the multiplexed path?
- Write VHDL code for a modulo-13 counter (counting sequence is 010, 110, …. 1210). The counter has the following features: a synchronous Active High Reset a value R can be loaded into the counter, using the signal Ld (Load) The signal Ld is active High Draw the schematic of your counter, showing the inputs and outputs. Show the number of bits for R, Q (output of the counter), Ld.a) i) Determine the number of bits per level required when using FSK with 4 different frequencies and QAM with a constellation of 256 points. ii) We want to digitise a signal that contains frequencies between 100 Hz and 1500 Hz, assuming 16 bits per sample. The digitised signal will be transmitted using a QPSK process. Determine the bit rate and the level rate. iii) We need to send 210,000 bits per second over a noiseless channel using 128- QAM. Determine the required bandwidth.The clock select register for channel A in an MC68681 DUART has bits 0 through 3 set to 0, 0, 0, and 1, respectively. What is the baud rate of the transmitter? What is the bit-‐‑time (or duration) for each bit transmitted?
- Q31)The bit rate for American PCM-24 system is a. 2.048 Mb/s b. 1.544 Mb/s c. 8 kb/s d. 64 kb/s This multiple choice question from DIGITAL COMMUNICATIONS course.just write for me the final answer.7. Given the following ASK signal (Note: vertical lines denote bit divisions): (single bit)) (Lower Voltage '0', Higher Voltage '1') (MSB on the left) A E a. m 1 t U d 10 M e -5 -10+ a) What is the resulting bit stream? b) What is the bit rate? c) What ASCII character was transmitted Time(ns) 1603. 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.
- Determine the total time required to serially transfer the eight bits contained in waveform A of Figure the first to be transferred. The 1 MHz clock is used as reference. and indicate the sequence of bits. The left-most bit is Clock AQ5/ 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)a) Multiply the binary numbers 01001111 (multiplicand) and 00000101 (multiplier) by using the directaddition method. b) in image c)in image