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

Financial computing with matlab project, This project carries 50% of your ?...

This project carries 50% of your ?nal mark. Please hand in your work to the Mathematical and Physical Sciences School O?ce, no later than 4pm Monday 21st January 2013. Please ?l

Cubic Spline Sweep Surface, write matlab program for Cubic Spline Sweep Sur...

write matlab program for Cubic Spline Sweep Surface

Illustration of input function, Illustration of Input function: For il...

Illustration of Input function: For illustration, >> rad = input('Enter the radius: ') Enter the radius: 5 rad = 5 If character or string input is preferred, 's' s

Triple the fundamental frequency, For the signal with four harmonics (first...

For the signal with four harmonics (first to fourth) that can be obtained from the script, do the following: a)  Place the time domain signal for the case in which all the harmo

Discuss the frequency range and radiation angles, Discuss the frequency ran...

Discuss the frequency range / radiation angles at which the two models diverge, and relate this divergence to your understanding of the behaviour of a pistonic source. Compare t

Refrigerant cycle, i want the MATLAB code for properties of refrigerant R13...

i want the MATLAB code for properties of refrigerant R134a, Pentane and VCR Refrigeration cycle. Thanks

Functions, Need help with creating functions in matlab.

Need help with creating functions in matlab.

Image forgery detection , i have a problem in doing my project which detect...

i have a problem in doing my project which detects image forgery detection using resampling technique any one please help in writing my program

Show the output - algorithms, Show the output - algorithms: Where does...

Show the output - algorithms: Where does the output go? The two possibilities are (i) to an external file, or (ii) to a window on the screen. Based on system, one of these wil

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

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