Project(s)
Part 2 of the course
Since we will need to use speakers and microphones for the project, I changed the room where help sessions will take place: from now on they will take place always at E:4123. The updated shedule can be found here.
Note that there will be no help sesion this Thursday (19 of Nov) since I will not be in Lund. However, you can mail me any question you have (on Thursday) and I'll try to answer on the same day.
Joao 2015-11-16
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Here are the Matlab code for playing/listening a signal using speakers/microphone:
Transmitter:
y=audioplayer(TxSignal,fs);
playblocking(y);
Receiver:
recorder=audiorecorder(fs,16,1);
recordblocking(recorder,playtime);
R=getaudiodata(recorder);
I think this is works, but you should check it yourselves.
Joao - 2015-11-12
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Next Monday (9th of Nov) at 9:15 in E:4123, there will be a demo the second part of the project.
Also, here are the schedule for the remaining help sessions.
Joao - 2015-11-05
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Part 1 of the course:
Description of first part. Deadline to present is Friday 23/10 at 12.00
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The last help session in the PIWC-HT1 course will be on Monday (19th) from 15.00 to 17.00 at E:4115.
Joao 2015-10-18
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In addiction to the message posted at 09-25, use
FilteredSignal = filter(B,A,SignalToFilter);
Joao 2015-09-28
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You might want to use these 8-th order lowpass Butterworth filter ( butter(...) in Matlab ) coeficients with normalized cut-off frequency Wn=0.05 if you cant access to Matlab Signal Processing toolbox.
Joao 2015-09-25
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Important message for Task2: the symbol time is 2.2676 ms and not 2.3 ms!
This matlab code converts a sequence of bits into plain text using ASCII
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
Joao 2015-09-20
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The help sessions from now and onwards will happen on
Mondays: 15:15-17:00
Fridays: 13:15-15:00
Here is the shedule. Note that the room is not always the same but its somewhere at the 4th floor.
There is a help session today.
Joao 2015-09-07
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Here is a Doodle poll for possible time slots for the 2 weekly help sessions : http://doodle.com/r9qii5xh69g5fhmg
Note that they are all sheduled for next week, but these time slots are valid starting from next week and onwards (for the whole HT1 study period).
Please tick every time slot that you can attend (not only the ones that fits you better). At the end I will choose the 2 slots that most people can attend.
Comment: I think it would be in your best interest to have at least 1 day gap between the help sessions.
Joao 2015-09-03
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The first help session takes place at E:4115 on Friday 04-Oct at 13:15.