2.Why do the absolute angular encoders utilize Gray code for encoding the angle? What would be the angular error in the encoder with an 8-bit Gray code?
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2.Why do the absolute angular encoders utilize Gray code for encoding the angle?
What would be the angular error in the encoder with an 8-bit Gray code?
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- What is a JFET? Explain its construction and describe the biasing methods available for biasing a JFET? Please don't write on paper3. 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.Question: 18 The time difference between the input signal crossing a 0.5VDD and the output signal crossing its 0.5 VDD when the output signal is changing from low to high is --- A. Propagation Delay low-to-high (Rise Propagation) B. Fall Transition Time C. Rise Transition Time D. Propagation delay high-to-low (Fall Propagation)
- An analog signal with a bandwidth of 4.2 MHz is to be converted into binary PCM and transmit- ted over a channel. The peak-signal quantizing noise ratio at the receiver output must be at least 55 dB. (a) If we assume that P=0 and that there is no ISI, what will be the word length and the number of quantizing steps needed? (b) What will be the equivalent bit rate? (c) What will be the channel null bandwidth required if rectangular pulse shapes are used?What is the value of the 8 digital bits that are represented as in the figure above if (Hint: the first bit is 1): a. The signal is encoded as NRZ-L: b. The signal is encoded as NRZ-I:Answer the following. Use a detailed explanation. In series clippers, when clipping of signal occurs? In parallel clippers, when clipping of signal occurs? What happens to the depletion region if the connection is in reverse bias?
- 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 2581. 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 signalQ2/ 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.