# We Helped With This Engineering Homework: Have A Similar One?

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Category Engineering Other Graduate Solved Engineering Homework Solutions

## Assignment Description

ELE5PRA                                                             Student Name:

Semester 1, 2018

Assignment 1                                                 Student Number:

Due date: April 9

Instruction

This assignment contains 4 pages (including this cover page) and 2 questions. You should attempt to answer all 2 questions.

This assignment is worth 10% of total subject mark.

Grade Table (for teaching assistant use only)

 Question Points Score 1 5 2 5 Total: 10

Teaching Assistant

1. (5 points) For the FM modulation, it is requried to compute the signal integral. In the labs, we have used the built-in Matlab function called cumsum to compute the signal integral. Your task is to write your own function called mycumsum that operates same as the Matlab cumsum function.

m(t)

cumsum                                               Oscillator

Message

Modulated

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2. (5 points) Given the following Matlab code that filters impulse noise from an image.

1        %clear      all        existing           variables

2        clear

3        %close      all        existing           figures

4        close          all

5        %clear command window

6        clc

7        %Load a demo image into Matlab 8 i = imread( ’ coins . png ’ ) ;

9

10        %Add salt and peper      noise

11        i = imnoise ( i , ’ salt & pepper ’ ) ;

12

13        %Filter     out the            salt and pepper noise

14        j = medfilt2 ( i ,[5 5]) ;

15

16        %display  results

17        subplot (121) ; imshow( i ) ;      t i t l e ( ’ Noisy image ’ ) ;

18        subplot (122) ; imshow( j ) ;      t i t l e ( ’ Filtered image ’ ) ;

19        print ( ’q2 . png ’ , ’−dpng ’ ) ;

Write your own median filter called mymedfilt2 that operates same as the built in Matlab medfilt2 function.

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