Consider a (10,6) single error correcting code for which code polynomial is x8 + x6 + x5 + x³ + x The digital signal equivalent to the given code is line coded and transmitted. Sketch the waveform of signal using AMI coding and On-off technique and distinguish their characteristics.
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- 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.Answer all questions below: 1. Draw the general block diagram of Frequency Division Multiplexing (FDM) 2. Multiplexing is a technique that allows the (simultaneous) transmission of multiple signals across a single data link. Figure Q2 below shows a multiplexer with four 500 kbps data stream inputs and 1 data stream output where the unit of data is 1 bit. Determine: i. ii. iii. 500 kbps The type of multiplexing technique used. The input bit duration. The output bit rate. 500 kbps 500 kbps. 500 kbps. ... ... ... 1 0 1 0 1 0 1 0 0000 1 1 1 1 0 1 0 0 MUX Figure Q2 Frames 0101 0001 110100010101(3) Five telemetry signals, each of bandwidth 1kHz, are to be transmitted simultaneously by binary PCM. The maximum tolerable error in sample amplitudes is 0.2% of the peak signal amplitude. The signals must be sampled at least 20% over the Nyquist rate. Framing and synchronizing require an additional 0.5% extra bits. Determine the minimum possible data rate that must be transmitted, and the minimum bandwidth required to transmit this signal.
- Consider the baseband signaling of the textual message 'OK' (excluding the quotes) in a wired DCS using binary line codes. Assume to bit duration is 1 ms. (a) Covert the message "OK" into a bit stream based on the 6-bit ASCII standard. (b) Describe mathematically and plot the non-return to zero code. evel (NRZ-L) line Stu (c) Describe mathematically and plot the bi-o-L (Manchester) line code. (d) escribe mathematically and plot the bipolar level line code.2. Draw the Block Diagram, List the truth table and write the Bolan function to: a) Half Subtractor 6) Encoder: 4-to-2 ......... ...Please assist with question 2 with details on how to do it. Thank you. 2. This problem addresses the digitization of a television signal using pulse-code modulation. The signal bandwidth is 4.5 MHz. Specifications of the modulator include the following: Sampling: 15% in excess of the Nyquist rate Quantization: uniform with 1024 levels Encoding: binary Determine (a) the Nyquist rate, and (b) the minimum permissible bit rate.
- A 450 kHz carrier signal is modulated with a 15 kHz modulating signal. What are its sideband frequencies?4. A signal is digitized using pulse-code modulation. The signal bandwidth is 10MHz. Encoding: Binary a) Determine the Nyquist rate. b) If the sampling rate is lower than the Nyquist rate, what effect occurs? What problem does it cause? c) Assuming return-to-zero signaling is used to represent the binary symbols 1 and 0, sketch the waveform for the sequence 1110.4. This problem addresses the digitization of a television signal using pulse-code modulation. The signal bandwidth is 4.5 MHz. Specifications of the modulator include the following: Sampling: 15% in excess of the Nyquist rate Quantization: uniform with 1024 levels Encoding: binary Determine (a) the Nyquist rate, and (b) the minimum permissible bit rate.
- (a) Define sampling and quantization. (b) Pulse Code Modulation (PCM) transforms analogue signals into binary digits where it has to be translated into electrical pulses before transmitting in the baseband channel. Each bit in the PCM sequence has bit time slot T = 0.5 ms and the PCM bits as follows: 1010 1100 0110 (i) Convert the binary digits into its basic pulse waveform representation and delay modulation waveform. (ii) Explain the differences of the converted PCM waveforms in Q4(b)(i).Perform 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)10The Transfer Fcn' block can be extracted from "Commonly Used Blocks' library. The 'Constant Source Block produces a constant signal with a default value of zero.