lu.se

Elektro- och informationsteknik

Lunds Tekniska Högskola | Lunds universitet

EITN21 Projekt i trådlös kommunikation

Meddelanden

2019/2020


Here you find news and some hints for the project.

Help sessions

The help sessions will take place twice a week. If you have anything to discuss, make sure to be there in time as Guoda and MinKeun will leave after a short while if there are not any issues to discuss.

Project description, HT1

The project description is now available for HT1: projectdescription_19

Useful files: SystemModel1.pdfSystemModelTask3.pdf

Signals for task 2

Signals for task 3

Recommended reading

Software-Defined Radio for Engineers, by Travis F. Collins, Robin Getz, Di Pu, and Alexander M. Wyglinski, 2018, ISBN-13: 978-1-63081-457-1. We will use this book in the second half of the course, and it covers many of the aspects in the first half as well.

There is a free pdf of the book available, see http://www.analog.com/en/education/education-library/software-defined-radio-for-engineers.html.

 

Hints

For converting the ASCII code, you may get help from the following matlab code:

wh=2.^[6:-1:0];
m=char(TransmittedBits(1:7)*wh');
for l=2:floor(length(TransmittedBits)/7),
m=[m char(TransmittedBits(7*(l-1)+1:7*l)*wh')];
end 
m

Guoda Tian 2018-09-27

 

For Task III, you can use the following code for designing the digital filter:

FilteredSignal = filter(B,A,SignalToFilter);

(B,A) need to be checked by yourself.

 

Guoda Tian 2018-09-27

 

Project description, HT2, part two

Here your find the project description for part two

Hints: 

Audio Part:

For transmitting the audio signal, you can directly use the following code:

tx = audioplayer(DataTrans,SamplingFrequency); 

playblocking(tx);

 

For recording the audio signal, you can directly use build in function audiorecorder, for example:

recorder=audiorecorder(fs,16,1);
recordblocking(recorder,SecSound);
R=getaudiodata(recorder);

 

Project description, HT2, part three

 Here your find the project description for part three