Homework Answers
AM stands for Amplitude modulation, AM transmission is highly noisy because in AM amplitude varies according to message signal hence to overcome this problem FM came into existence and FM also contains high bandwidth.
FM stands for frequecy modulation,for radio receiver FM is good other modulation schemes FM has more noise resistivity that's why they are used in broadcasting and radio communications we know that noise occurs in amplitude only but in FM frequency varies according to message signal but amplitude remains constant that's why FM contains greater signal to noise ratio.
pulse width modulation also called pulse duration modulation in PWM the width of carrier pulse is varied accordance with the sample values of modulating signal.in pulse width modulation amplitude is made constant but width of pulse is made proportional to signal. hence it also contains less noise interference hence it can also be used for audio effects and amplification purpose in radio receiver system.
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Question 1 (50pts): We have AM modulation and FM modulation for radio transceiver/receiver systems. Can we use pulse width modulation for a radio transceiver/receiver system? Explain why or why not...
We would like to build an AM radio receiver using a series RLC circuit working as a bandpass filter. We have decided to...
We would like to build an AM radio receiver using a series RLC
circuit working as a bandpass filter. We have decided to use a 240
μH inductor with an internal resistance of 12Ω, and a variable
capacitor whose capacitance varies between 40 to 360 pF. A radio
“tunes” into a certain frequency by adjusting its receiver circuit
so that it resonates at that frequency, and it only catches that
specific frequency.
1. Determine the range of channel frequencies that...
Communication System Solve with ALL steps Please QUESTION 3 Briefly explain the following Analog Pulse Modulation...
Communication System
Solve with ALL steps Please
QUESTION 3 Briefly explain the following Analog Pulse Modulation (APM): (i) Pulse Amplitude Modulation (PAM) Pulse Width Modulation (PWM) (iii) Pulse Position Modulation (PPM) (2 marks) (2 marks) (2 marks) b) There are several digital modulations techniques used to modulate digital signal. For a binary data 10111011, sketch the output waveform if the following modulator is used: Amplitude Shift Keying (ASK) (2 marks) Frequency Shift Keying(FSK) (2 marks) (iii) Phase Shift Keying (PSK)...
Please explain which components should be used. A simple AM radio receiver can be constructed as a by the differential...
Please explain which components should be used.
A simple AM radio receiver can be constructed as a by the differential equation series RLC circuit which can be modelled da R+ L Vext dt dt where L is the inductance, R is the restance, C is the capacitance, q is the resulting charge point in the circuit, and Vext is the voltage of the signal received in the circuit by an antenna When radio waves pass by the antennae, they create...
1 Question 5 pts What is the coherent demodulation? Question 1 pts What kind AM modulation can tr...
1 Question 5 pts What is the coherent demodulation? Question 1 pts What kind AM modulation can transmit the information signal in maximum power if the carrier signal power is fixed? Question 1 pts What kind AM modulation has the narrowest signal band to transmit the same information signal? Question 10 pts Search om Internet. What is the VSB, which is a kind of AM modulation used in TV means? at are the advantages and disadvantages according to the information...
I am confused with gas chromatography. The question I am being asked is why did we...
I am confused with gas chromatography. The question I am being asked is why did we use column B (silicone oil) for separating 1-butene, trans-2-butene, and cis-2-butene from each other in a GC. I have answered all the other questions but I'm completely stuck on this one; can anyone help please?
4. (10 pts) Using the Gauss-Jordan elimination process, solve the following systems of linear equations. How many solutions are there? Can we apply Cramer's rule? Explain why (Use the matrix...
4. (10 pts) Using the Gauss-Jordan elimination process, solve the following systems of linear equations. How many solutions are there? Can we apply Cramer's rule? Explain why (Use the matrix form of linear equations.)
4. (10 pts) Using the Gauss-Jordan elimination process, solve the following systems of linear equations. How many solutions are there? Can we apply Cramer's rule? Explain why (Use the matrix form of linear equations.)
Please explain what each one does and why we use it in operating systems 3 public...
Please explain
what each one does and why we use it in operating systems
3 public class stringbufferEx lic static void main (String arga[1 stringbufferex stringbutterEestringbutfertx atringaufterix.proceed ) private void proceed ingBuffer stringBuffer new stringBuffer Initial value) System.out.printinistring, format (.8-35s ?s- .with inital value: ,, stringBuffer) r.setLength(o) //Setting the lenght to zero (0), which wil1 also rintin (String.format (-358tAfter setting the lenght to zero clear the contents of the stringBuffer System out stringBuffer.append ("New value") system.out.printin(string.format ("-35s , stringBuffer)) "with...
The following code implements some Pulse Width Modulation (PWM) code and interacts with a Curiosity board (usual connections of pushbutton on portC pin4 (logic 0 when pressed), LEDs on portA pins 1,...
The following code implements some Pulse Width Modulation (PWM) code and interacts with a Curiosity board (usual connections of pushbutton on portC pin4 (logic 0 when pressed), LEDs on portA pins 1, 2 and 5, and portC pin 5, and Potentiometer on portC pin 0 - not all used here). Note the following relationship for the duty cycle 96DutyCycle DutyCycleNumber The Duty cycle (as a percentage of 100) is set by 80 100 PWM_init); // initialisation of PWM module 1...
1. (9 points) In this Question, we are going to perform DSBSC modulation using MAT- LAB....
1. (9 points) In this Question, we are going to perform DSBSC modulation using MAT- LAB. The signal we want to use is a speech signal. Here is the block diagram of ths system we want to simulate: Modulation Demodulation ult gt) m(t) x Butterworth LPF mr(t) c(t) Gr(t) Figure 1: DSBSC modulation and demodulation. (a) Since we are working with speech signals, we will choose a sampling frequency that is much larger than the bandwidth of the signals. As...
1) Why do we use charge controllers in a PV system and what are their differences...
1) Why do we use charge controllers in a PV system and what are their differences from an inverter? 2)You have a 10kW PV fixed system that is grid connected (no batteries) in Place X and you have a contract with a power company to sell all the produced electricity. What inclination and orientation would you use in order to maximize annual electricity production and why?
We would like to build an AM radio receiver using a series RLC
circuit working as a bandpass filter. We have decided to use a 240
μH inductor with an internal resistance of 12Ω, and a variable
capacitor whose capacitance varies between 40 to 360 pF. A radio
“tunes” into a certain frequency by adjusting its receiver circuit
so that it resonates at that frequency, and it only catches that
specific frequency.
1. Determine the range of channel frequencies that...
Communication System
Solve with ALL steps Please
QUESTION 3 Briefly explain the following Analog Pulse Modulation (APM): (i) Pulse Amplitude Modulation (PAM) Pulse Width Modulation (PWM) (iii) Pulse Position Modulation (PPM) (2 marks) (2 marks) (2 marks) b) There are several digital modulations techniques used to modulate digital signal. For a binary data 10111011, sketch the output waveform if the following modulator is used: Amplitude Shift Keying (ASK) (2 marks) Frequency Shift Keying(FSK) (2 marks) (iii) Phase Shift Keying (PSK)...
Please explain which components should be used.
A simple AM radio receiver can be constructed as a by the differential equation series RLC circuit which can be modelled da R+ L Vext dt dt where L is the inductance, R is the restance, C is the capacitance, q is the resulting charge point in the circuit, and Vext is the voltage of the signal received in the circuit by an antenna When radio waves pass by the antennae, they create...
1 Question 5 pts What is the coherent demodulation? Question 1 pts What kind AM modulation can transmit the information signal in maximum power if the carrier signal power is fixed? Question 1 pts What kind AM modulation has the narrowest signal band to transmit the same information signal? Question 10 pts Search om Internet. What is the VSB, which is a kind of AM modulation used in TV means? at are the advantages and disadvantages according to the information...
4. (10 pts) Using the Gauss-Jordan elimination process, solve the following systems of linear equations. How many solutions are there? Can we apply Cramer's rule? Explain why (Use the matrix form of linear equations.)
4. (10 pts) Using the Gauss-Jordan elimination process, solve the following systems of linear equations. How many solutions are there? Can we apply Cramer's rule? Explain why (Use the matrix form of linear equations.)
Please explain
what each one does and why we use it in operating systems
3 public class stringbufferEx lic static void main (String arga[1 stringbufferex stringbutterEestringbutfertx atringaufterix.proceed ) private void proceed ingBuffer stringBuffer new stringBuffer Initial value) System.out.printinistring, format (.8-35s ?s- .with inital value: ,, stringBuffer) r.setLength(o) //Setting the lenght to zero (0), which wil1 also rintin (String.format (-358tAfter setting the lenght to zero clear the contents of the stringBuffer System out stringBuffer.append ("New value") system.out.printin(string.format ("-35s , stringBuffer)) "with...
The following code implements some Pulse Width Modulation (PWM) code and interacts with a Curiosity board (usual connections of pushbutton on portC pin4 (logic 0 when pressed), LEDs on portA pins 1, 2 and 5, and portC pin 5, and Potentiometer on portC pin 0 - not all used here). Note the following relationship for the duty cycle 96DutyCycle DutyCycleNumber The Duty cycle (as a percentage of 100) is set by 80 100 PWM_init); // initialisation of PWM module 1...
1. (9 points) In this Question, we are going to perform DSBSC modulation using MAT- LAB. The signal we want to use is a speech signal. Here is the block diagram of ths system we want to simulate: Modulation Demodulation ult gt) m(t) x Butterworth LPF mr(t) c(t) Gr(t) Figure 1: DSBSC modulation and demodulation. (a) Since we are working with speech signals, we will choose a sampling frequency that is much larger than the bandwidth of the signals. As...
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