User Account

All Pages

singal system , MATLAB Programming

Assignment Help:
Q.1: Consider the transmission of a sinusoid x(t) = cos(2f0t) through a channel a ected
by multipath and Doppler. Let there be two paths, and assume the sinusoid is being sent
from a moving transmitter so that a Doppler frequency shift occurs. Let the received signal
be
r(t) = 0cos(2(f0 ?? v)(t ?? L0=c)) + 1cos(2(f0 ?? v)(t ?? L1=c))
where 0  i  1 are attenuations, Li are the distances from the transmitter to the receiver
that the signal travels in the ith path i = 1,2, c = 3  108 m/sec, and the frequency shift
v is caused by the Doppler e ect.
(a) Let f0 = 2 KHz, v = 50 Hz, 0 =1, 1 = 0.9 and L0 = 10,000 meters. What would
be L1 if the two sinusoids have a phase di erence of =2 ?
(b) Is the received signal r(t), with the parameters given above but L1 = 10,000, periodic?
If so, what would be its period and how much does it di er from the period of the
original sinusoid? If x(t) is the input and r(t) the output of the transmission channel,
considered a system, is it linear and time invariant? Explain.
(c) Sample the signals x(t) and r(t) using a sampling frequency Fs = 10 KHz. Plot the
sampled sent x(nTs) and received r(nTs) signals for n = 0 to 2000.
(d) Consider the situation where f0 = 2 KHz, but the parameters of the paths are random,
trying to simulate real situations where these parameters are unpredictable, although
somewhat related. Let
r(t) = 0cos(2(f0 ?? v)(t ?? L0=c)) + 1cos(2(f0 ?? v)(t ?? L1=c))
where v = 50 HZ, L0 = 1,000, L1 = 10,000, 0 = 1 - , 1 = 0/10 and  is a
random number between 0 and 1 with equal probability of being any of these values
1
(this can be realized by using the rand MATLAB function). Generate the received
signal for 10 di erent events, use Fs = 10,000 Hz as the sampling rate, and plot them
together to observe the e ects of the multipath and Doppler.

Related Discussions:- singal system

Sweep surface, program for sweep surface

program for sweep surface

Compare performance between matlab and excel, This assignment is designed t...

This assignment is designed to compare performance between Matlab and Excel for performing nonlinear regression analysis of a set of data. There are two data sets in the accompa

Calculate the velocity of groundwater, The characteristic properties of an ...

The characteristic properties of an aquifer can be used to calculate groundwater velocities, v groundwater (L/T), according to: where KH (L/T) is the hydraulic conductivit

Create a correlation matrix for variables in the data, In MATLAB, create a ...

In MATLAB, create a correlation matrix for all of the variables in the data (it should be an 8x8 matrix). To do this you will have to convert the "southern"variable into a number.

Matlab function for smallest three eigenvalues, Write a matlab function tha...

Write a matlab function that calls eig and generates an estimate of the smallest three eigenvalues and associated eigenfunctions of the negative Laplacian operator on ?. (Hint: thi

Solving 1st order differential equations, Hi, I need help with solving five...

Hi, I need help with solving five-1st order ODE which are coupled. I need to plot these as well. Could I please get a quote. Thanks

Statistical analysis, please tell me the procedure of Anova two Way analysi...

please tell me the procedure of Anova two Way analysis in matlab?

Illustrations of calling the function, Illustrations of calling the functio...

Illustrations of calling the function: Here are illustrations of calling the function: >> cylcost(32,73,4.50) ans = 661.5000 >> fprintf('The cost would be $%.2f\n'

Function definitions, Function definitions: There are various ways to ...

Function definitions: There are various ways to organize the scripts and functions, but for now every function which we write will be stored in a separate M-file, that is why

#GUI, #create a matlab GUI for designing common emitter amplifier which pro...

#create a matlab GUI for designing common emitter amplifier which produces AC load lines based on the component values

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd