please quickly thanks ! true or false 7. In the CDMA system, the system decode the data with the matched sequence with transmistter.
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please quickly thanks ! true or false
7. In the CDMA system, the system decode the data with the matched sequence with transmistter.
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- Select the correct answer5. In a digital communication system, regarding the effect on the probability of error, it is not relevant to seek ..A. one channel without distortion.B. a good SNR.C. a channel without noise.D. high fidelity of the signals.Q6: Sectoring is a way to do what? a. Achieve branch circuits. b. Put each phone call in a different time slot. c. Do SS7 look-ahead call placement. d. Partition Voice mail boxes e. It is an ISDN-PRI way of brining in trunks f. Achieve frequency reuse. g. None of the aboveDraw a 16-to-1 line multiplexer tree which uses only 2-to-1 line multiplexers. Number all of the input lines Label the most significant address line "D" Label the least significant address line "A" Label the other two address lines in alphabetical order consistent with “A" and "D" Question 11
- This multiple choice question from DIGITAL COMMUNICATIONS course.just write for me the final answer. 12)If the sampling frequency is 1 KHz, then the number of samples in 5 minutes is equal to a. 300000 b. 5000 c. 1000 d. none of the mentionedWe want to design a digital circuit that converts Gray code (ABC) to Binary code (xyz). Set up a 8-to- 1 line multiplexer so that the output gives y as a function of ABC. "A" is given to the most significant bit of the control inputs of the multiplexer. "C" is given to the least significant bit of the control inputs of the multiplexer.Decode the binary sequence. The encoding format used is Bipolar AMI.
- (a) Explain the main different between a 2-bit asynchronous counter and a frequency divider by 4 with the aid of appropriate diagram. (b) Determine the sequence of the counter shown in Figure 7 and explain the function of NAND gate in the circuit. Begin with the condition that the counter is cleared. Show the appropriate waveforms for all input and outputs to support your answer using the answer sheet provided in Appendix. Do D D2 CLK Figure 7 |Rajah 7) (c) Design a synchronous counter that can count up and down for a sequence of 3+2+»5+>1 using D flip-flops.Arrange the chronological order of the elements and its function to Digital Communication by writing the numbers 1 to 10 in both column A and column B. A Elements Channel Decoder Channel Encoder Digital Demodulator LICHTE SE Digital Modulator Input Transducer Channel Output Signal Output Transducer Source Source Decoder Source Encoder B A ndeseng Function After detecting the sequence, it does some error corrections. A It can be an analog signal. It compresses the data into minimum number of bits. It converts the signal into the original physical form, which was at the input of the transmitter. It does the coding for error correction. It allows the analog signal to transmit from the transmitter end to the receiver end. It produced after the whole process. It takes a physical input and converts it to an electrical signal. The received signal is demodulated as well as converted again from analog to digital.notni erli lo ini arli lo voeber edirsin.sm The resultant signal is once again…19) Consider a 6-bit ADC and full scale voltage measurement range of (0-59).The Resolution will be _________. 0.30 0.06 0.92 1.00
- Are the following statements correct or wrong? Justify your answer. GTO requires very low current applied to its gate to be turn off. IGBT is a voltage driven device. BJT is more efficient than IGBT in high power applications. Thyristors are used only for low voltage, low current applications. MOSFETs are used for high frequency applications.write an introduction and objective for SSB modulationQuestion No 1. A) Describe encoding technique (Digital Data to Digital Signal) and explain about Line coding technique. B) What is the difference between NRZ-I & NRZ-L, explain with example.