Write short notes (max. three lines) on each of the following: (a) The effect of Quantization error on PCM signal spectrum and transmission rate. (b) The Transmitter Mixer. (c) Manchester codes (what/why/advantage(s)/disadvantage(s))

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: What is the purpose of the limiter circuit in the FM system? to remove the variation in the FM…

A:

Q: Draw a block diagram of a typical digital communications system (both transmit and receive paths)…

A: Given  We need to draw the block diagram of digital communications system and explain source encoder…

Q: For a communication link what are the different types of modulation and their diagrams including…

A: Modulation : It is the process, where properties of carrier signal  lke amplitude, phase or…

Q: Question 5 (a) Explain the function of each stage of a superheterodyne AM receiver with the aid of a…

A: 5.a) Superheterodyne receiver functional block diagram b) why DSB-LC  is power inefficient?

Q: Please show a two-terminal general modulation channel model. And for the random  parameter channel,…

A: Modulation: Conversion of analog signal by sampling into 0 and 1 bits through carrier wave…

Q: a) What are the disadvantages of a TRF receiver? Explain how a superheterodyne receiver overcomes…

A: In TRF receiver after receiving signal from antenna, a RF amplifier is used to select the required…

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: b) Draw a block diagram of a typical digital communications system (both transmit and receive paths)…

A: Communication System:  A communications system, often known as a communications network, is a…

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: The maximum peak to peak value of an AM wave is 40 volts. The peak to peak value of the modulating…

A: According to the question we need to calculate the value of carrier power, total transmitted power,…

Q: What will be the time domain expression of the instantaneous sampled signal?

A: Sampling is the process of converting a continuous-time signal into a discrete-time signal.…

Q: How to use the PLL circuit and the logic circuit to comprise a doubler frequency circuit?

A: PLL circuit : PLL circuit is known as phase locked loop circuit it is an electronic circuit which is…

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: FM DEMODULATION Why is it necessary to recover the original information signal from the carrier?

A: By using modulation we sent our original signal from transmitter to receiver with the help of…

Q: In your own words, Explain each principles of signal communications in Military.

A: Given that principles of communications in military needs to be explained. Do like my answer. Please…

Q: What information can be obtained by result and analysis of  "Enhance AM radio signal broadcasting"

A: AM broadcasting is radio broadcasting using amplitude modulation (AM) transmission . It was the…

Q: Explain by block diagram and equations the indirect method of Generating FM?

A:

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: or Delta modulator, how many bits transmitted per sample?

A: In this case ,the number of bits transmitted per sample for a delta modulator is to be determined.

Q: (i) Define modulation index. (ii) Why is the amplitude of modulating signal kept less than the…

A: Amplitude modulation- When modulation is done by keeping the frequency and phase of carrier waves…

Q: What are the merits of an FM communications system compared to an AM system? What, if any, are the…

A: Frequency Modulation Amplitude Modulation It is less susceptible to noise and other interference…

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: What is the mixer in a superheterodyne receiver?

A: Superheterodyne receiver It is used in radio broadcast reception and two-way radio communication…

Q: a) Draw the neat labeled diagram of four pair 10BaseT cable? b) Write any four disadvantages of the…

A: 10 baseT was a type of standard for implementing ethernet network using unshielded twisted pair…

Q: For the implementation of Superheterodyne receiver circuit, which is better to use: High side…

A: According to the question, for the implementation of the Superheterodyne receiver circuit, which is…

Q: In which encoding scheme Nyquist theorem is used and Why?

A: Nyquist theorem It states that if a bandwidth is B of Chanel   which carry a signal L number of…

Q: c) The superheterodyne receiver (SuperHet) is an architecture that enables the same receiver to…

A: Introduction - Superheterodyne receiver - A superheterodyne receiver, also known as a superhet, is a…

Q: What is the maximum transmission efficiency of an AM signal?

A: The solution is provided in the following section.

Q: b) Draw the block diagram of QPSK transmitter. Explain its operation and write all the design…

A: QPSK is the abbreviation of "Quadrature Phase Shift keying. As we have already discussed, that in…

Q: Describe clearly the working of Super heterodyne receiver with a neat sketch and also write down the…

A: WORKING OF SUPER HETERODYNE RECEIVER: The Super heterodyne receiver  is utilized in many types of…

Q: Explain the block diagram of super heterodyne of SSB receiver?

A:

Q: What are some disadvantages of designing a global communication system with a LEO constellation that…

A: The disadvantages of designing a global communication system with an LEO constellation that requires…

Q: Write a VHDL code for 4:1 multiplexer using conditional concurrent signal assignment

A: entity mux4to1 is port(A,B: in std_logic; CD : in std_logic_vector(1 down to 0), F: out std_logic);

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

A:

Q: 1. Draw the block diagram of a Superheterodyne Receiver. Label and discuss the main function/s of…

A: As per Guidelines we are supposed to answer only First question when multiple questions are given.…

Q: Advantage of using Dynamic channel assignment is

A: The solution is provided in the following section.

Q: For GSM 900, mention the uplink and downlink frequency bands

A: In the following section, the uplink and the downlink frequency bands for GSM 900 is provided.

Q: Derive the NOT gate and then sketch the MUX equivalen?

A:

Q: Describe how the principles of the RAID organization may be used in a broadcast-data environment…

A: A basic introduction to RAID Raid generally stands for  (Redundant array of independent disk). In…

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: Describe the purpose of multiplexing in an explain the advantages of multiplexing. optical…

A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again. The…

Q: What is the minimum spectrum allocation required by W-CDMA?

A: In the following section, the correct option along with the explanation is provided.

Q: 3. Explain the benefit of using IF stage in super heterodyne receivers.

A: Super heterodyne receiver is also known as beat receiver, this receiver consist a oscillator which…