How many possible levels or conditions for a PSK signal with a baud rate of 2 kbaud and a bit rate of 10 kbps? * none of the choices 8 3. 5
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- Design a combinational circuit that takes 3-bit pattern as input and outputs binary code of bit position of the first 1' in the pattern reading from MSB (2nd position) to LSB (0th position).An additional output variable V is required along with binary code to indicate that the binary code is valid or note i.e., if the input pattern is '000' then the output V should be '0' to indicate that the binary code is not indicating the bit position of first 1' and we don't care about the binary code if V = 0. Design the required circuit using dual 4x1 MUXS and minimum additional logic.Available resources along with dual 4x1 MUXS are NOT gates, 2-input(AND, OR, NAND, NOR) gates.In a binary PCM system, if the quantizing noise is not to exceed ±P percent of the peak-to-peak analog level, show that the number of bits in each PCM word needs to be nz [log2 101 log1o ()- 50 3.32 log10PMCQ) 5)Quantization error------: a. decreases as the bits per sample increases b. decreases as the bits per sample decreases c. decreases as the sample rate increases d. decreases as the sample rate decreases 6)The difference between the actual value of the sample and the quantized value of the sample is called: a. PAM error b. Sampling error c. Quantization error d. PCM error ThESE multiple choice question from DIGITAL COMMUNICATIONS course.just write for me the final answer.
- 23. Determine the step size for a 4-bit ADC having a range of 10V. Also, convert an analog sample of 3V into the 4-bit digits using Successive approximation method. Please show all steps/comparisons/SAR comparison rules used for each step to obtain full points.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.Qَ\ discuss a conversion of an analogue signal to digital bits Please I need to resolve the question quickly
- Q3: Assume that you have to spread two signals A and B, using CDMA with the DSSS. The data of signals are Ad = 111 and Ba = 000. The key sequences are Ak = 010100 100010 110011, and Bk = 000110 101000 010111 If the binary "0" is assigned a positive signal value (+1), the binary "1" a negative signal value (-1), for the A, and Bs. Find the following: 1. The results of spreading signals As and Bs. 2. The summation signal of As+ Bs. 3. Find the output data values of As and Bs.Q1: Design and draw time diagram of MOD-10 asynchronous/down counter that counts as 0000 to1001 knowing that Clock type is Negative and Output is taken from Q? Q2: Design and draw time diagram of asynchronous/UP counter that counts as 0001 tol001 knowing that Clock type is Negative and Output is taken from Q? Q3: Design 4- bit UP/DOWN Ripple Counter using j-k Flip-FlopWhat is meant as baud rate? I don't understand explain in bit details and what's the difference between baud rate and bit rate?
- 1 If A = 0011 and B = 1111 then the output of 4 –bit Magnitude comparator is a. A equal to B b. A greater than B c. A less than B d. None of theseC40 Three common types of ADC architectures are the Successive Approximation Register (SAR) ADC, the flash ADC, and the sigma delta ADC. A particular application requires 10-bit digitisation at a sampling rate of 1 MHz. Which of the following statements are true? A. A flash ADC is B. A sigma delta C. A typical SAR ADC D. None recommended ADC is is recommended of as it is needed recommended as it within these to sample at as it is needed specification and to get 10-bit digitisation 1MHZ has the lowest costFor a resolution of 0.08 V, determine the seven bit sign magnitude PCM code for a sample of -2.19Va. 0101110b. 1011011c. 0011100d. 0011011