Q24) This multiple choice question from DIGITAL COMMUNICATIONS course. just write for me the final answer.

Q: Explain frequency hopping acquisition scheme using a simple PN sequence. Assume that the length of…

A: Frequency hopping acquisition scheme using a simple PN sequence. In a frequency hopping, the…

Q: 2.Why do the absolute angular encoders utilize Gray code for encoding the angle? What would be the…

A: Absolute encoders are used to determine the true angular location. Incremental encoders, on the…

Q: If the carrier signal is given as c(t)=5cos10000t, and the modulating signal is given as m (t) =…

A: DSB modulated signal is a product of message signal and carrier signal, So we need to calculate the…

Q: Digital data is to be transmitted through a baseband system with No = 10-7 W/Hz and the received…

A: According to the question,  N0=10-7 WHz ; A= 20 mV ; Bit rate (r) = 1000 bps; Then we need to…

Q: An AM-DSB-LC modulator has a carrier frequency of (fc) Hz, with amplitude of (Ac) volt, and the…

A:

Q: (b) For a system transfer function H(z), why must there not be more finite zeros thar finite poles…

A: In this question we will write how causal system have more poles than zeros...

Q: In a baseband communications link, frequencies upto 3500 Hz are used for signalling. Using a raised…

A: Given a base-band communication link, Frequency used for signalling, W = 3500 Hz The excess…

Q: List THREE (3) features of baseband transmission.

A: Given:  Brief description: In communication system mainly we have two types of communication system…

Q: Which of the following is not an effect caused by multipath in radio channel? a) Rapid changes in…

A: The solution is provided in the following section.

Q: Identify and plot the power spectral density separately corresponding to the identified line codes…

A: According to the question,

Q: Data at a rate of 7 kbits/sec is to be transmitted over a leased line of bandwidth 4 kHz using…

A: Given    Data Rate R=7K bits/sec    Bandwidth B=4 KHz    We have to calculate the value of roll‐off…

Q: (b) In which encoding scheme Nyquist theorem is used and Why? Explain complete procedure of that…

A: Nyquist theorem is used in the digitization of analog signals. It is also called sampling theorem.…

Q: Determine the energy per bit-to-noise density ratio when the receiver input carrier power is 100…

A:

Q: 7.3-1 Data at a rate of 6 kbit/s is to be transmitted over a leased line of bandwidth 4 kHz by using…

A: The solution can be achieved as follows.

Q: The binary sequence 11100101 is applied to Sunde's BFSK modulator. The bit duration is 1 με. The…

A: For a BFSK signal

Q: A. If the probability of error of BPSK is 0.85 then Pe of BFSK is?   B. What happens to the radio…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Consider a CDMA system where transmitter A has the code 101010 and transmitter B has the code…

A: The given CDMA system transmitter A code is  101010. The given CDMA system receiver B code is 111001…

Q: Question 3: What are the similarities and differences between the information signal m (t) obtained…

A: Difference between modulated signal and demodulated signal- In modulation process original signal…

Q: over the sampling (Nyquist) rate. Suppose it used 0.5% as a maximum quantization level error with…

A:

Q: The output signal from a conventional AM modulator is ?(?) = 4 cos(3600??) + 24 cos(4000??) + 4…

A: The expression of the output signal from a conventional AM modulator is given as

Q: What is a bipolar line coding technique with phase encoding, and explain why it is named as phase…

A: In the bipolar line coding technique with phase encoding, there are three levels of the voltage…

Q: : Plot an ASK signal for the bit stream data 1010101101, assume that the frequency = The amplitude 0…

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Q: the transmission? comparison with the amplitude modulation 2. Explain briefly when the frequency…

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Q: In series clippers, when clipping of signal occurs?  In parallel clippers, when clipping of signal…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Q: Suppose you have the following modulated signal: +2 -2 If the value of the symbol rate is 2Kbps,…

A:

Q: Identify and draw the odd and even parts of the signal given below. ?(?) = ?(? + 2) − 2?(? − 1) +…

A: Identify the given signal draw the odd and even parts of the signal given ?

Q: When the number of bits in a PCM mode, n, is 3, what is the dynamic range in dB?

A:

Q: a) An amplitude modulated (AM) signal is made up of a carrier (with constant frequency) in which its…

A:

Q: Exxplain the rellation between BER and E/N_0, where E is the energy per bit, N_0 is the noise…

A: In the digital communication, the normalized signal to noise ratio per bit is given as:

Q: Determine the frequency range of BPRZ-AMI signal transmitted at 1000 bits.second.

A: Given fb=1000 bits/sec With BPRZ-AMI, the worst case is two or more consecutive logic 1's, and the…

Q: The information in an analog waveform, whose maximum frequency fm-4000Hz, is to be transmitted using…

A:

Q: Calculate channel capacity, in bits per second, of a 10-MHz channel with an S/N ratio of 50 dB

A: Here, the given is, B=10 MHzB=10×106 HzSN=50 dB

Q: What is the minimum bandwidth of the PSK modulated signal? and then compare the bit-error…

A:

Q: 2. What is the minimum B. Wrequired to nodulate the voice signal by using AM-DSB -SC? 3. Why we used…

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Q: Type your question here A carrier signal given by 10 cos 10000 ?? ???? is AM/DSB-LC modulated by…

A:

Q: Consider error control methods in digital signal transmission. Assume Hamming code is used with even…

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Q: Fora standard SSBSC carrier AM, the peak unmodulated carrier peak voltage is 10 V for a load…

A: The detailed answer is solved below according to the given parameters and instructions in the…

Q: Detail the operation of a Variational Autoencoders (VAE). How does this compare to a standard…

A: We will refer the concept of VAE and AE .  Then will compare among them and finally we will derive…

Q: A carrier signal given by 10cos27Tx108t volt is FM modulated by single tone message 4cos27Tx103t…

A:

Q: In a pulse code modulated system, a quantizer is used with 128 uniform levels. If 120 kHz is the…

A: For 128 levels we have 2 , where = number of bits in PCM symbol. We must represent 128 characters…

Q: In data communications, we use periodic analog signals and  Non periodic digital signals explain

A: The explanation is given in the following section.

Q: Time 1 signal i 1 signal į 1 signal i 1 signal i 1 signal i 1 signal element element element element…

A: Binary FSK signal

Q: Suppose that a voice signal-has x(t)[ma=2V and average pov- -quals to 0.25W. Calculate the value of…

A: DSB-SC only has side bands so power of DSB is nothing but the power of side bands(PSB) .   Hence…

Q: Done + Estimate the percentage change of power for a DSB-SC AM system when the value of the…

A: Given: The modulation index of DSB-SC AM system changes from 0.6 to 0.9. The corresponding…

Q: number of bits if frequencies of A=0.15 and B=0.23 ?

A: