MATLAB PROGRAMING + gaussian finction

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hyper145

Joined: 27 Nov 2007
Posts: 9

27 Nov 2007 2:36 matlab programing

Hi guys this is my first time in here but i think this is an wonderful site so i have decided to share with you my experiance in matlab, i will be posting certian programs in Matlab and u can ask me anything you want to know. I will later tell you who i am. Φ

hyper145

Joined: 27 Nov 2007
Posts: 9

29 Nov 2007 18:47 yahoo group telecom_research

well i am going to treat this as a class, and for now i have two people who are interested to know, so if there is anyother person who is interested please let me know. Thank you

master_picengineer

Joined: 03 Sep 2007
Posts: 1050
Helped: 62

29 Nov 2007 18:54 yahoo group telecom_research

Hi hyper145,
Nice idea. I'm very interrested. When courses starts ?
I'm ready.

aersoy

Joined: 08 Aug 2006
Posts: 82
Helped: 1
Location: ankara turkey

29 Nov 2007 19:46 canal awgn matlab

i like to learn too.

rkdrkd

Joined: 15 Jul 2004
Posts: 59
Helped: 3

30 Nov 2007 3:07 tdma code for matlab

Yeh I am interested to join with you also..

hyper145

Joined: 27 Nov 2007
Posts: 9

30 Nov 2007 14:29 spectrum sensing matlab code

Thanks guys for your responds and interest in the MATLAB PROGRAMING class, but I hope you know that you should know at least undergraduate maths to be able to appriciate MATLAB though at all levels you can do it. Can i know your levels so that i will know where to start. Thank you and welcome to the class

master_picengineer

Joined: 03 Sep 2007
Posts: 1050
Helped: 62

30 Nov 2007 14:33 who should know matlab?

Hi,
I'm a Ph.D student.

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30 Nov 2007 14:33 Ads

honhungoc

Joined: 29 Dec 2006
Posts: 226
Helped: 47

30 Nov 2007 17:50 +oversampling +cdr +simulink

Hi, I'm really interested in this class

I'm master student, however i'm not good at matlab

erizipel

Joined: 30 Nov 2005
Posts: 24
Helped: 1

01 Dec 2007 21:35 telecom_research yahoo group

i will be here too.. i m master student.. i know matlab but want to learn more.. my subject is about evolutionary algorthims. it will be nice to work to gether..
thanks a lot:idea:

aersoy

Joined: 08 Aug 2006
Posts: 82
Helped: 1
Location: ankara turkey

03 Dec 2007 0:24 wifi dans matlab

electrical engineering student. i had calculus and enginering mathematics at school.

hyper145

Joined: 27 Nov 2007
Posts: 9

03 Dec 2007 2:45 quantising matlab

As a form of introduction, MATLAB is a numerical programming tools for computing matrixes but instead of telling the history behind matlab, I rather prefer to explain the philosophy and the need for matlab.

From the physical point of view everything in life is made up of Atoms and molecules as we all know from elementary science. But all these atoms occupy specific location in space and they can be represented in a matrix form therefore the atoms of a piece of metal can be represented as
matlab =
-- --
|1 2 3 4 |
|5 6 7 8 |
|9 10 1112|
-- -- (1)
where the numbers 1,2,3 … are the location of the atoms which form the lattice of the metal. Now this metal can be molded into another form, can be added to another metal, can be heated to liquefy form and many others. In doing this you are changing the location of the atoms and performing specific task and as an engineer you can simulate these task to cut prototype cost, and other lengthy analysis by using the MATLAB meaning that matlab is engineering software for simulating physical quantities and is easy to use. At all levels you can program a physical quantity, visualize it and simulate it.
let represent the metal in (1) above as M as
M=metal;
M = [1 2 3 4; 5 6 7 8 ; 9 10 11 12] (2)
This is how to represent the matrix in (1) in matlab command window and it will produce (1) as the result. If u don't want to see the matrix printed out as in (1) the use the semicolon at the end of the square bracket this will suppress the output.

Oh sorry guys, I am hoping that u has the matlab software and u know how to open it. If not then get one, but if u can't afford it then download the octave it is a free open source code which works just like MATLAB.

Now you can issue certain commands like:
(1) sum(M) to sum up the matrix,
(2) diag(M) to find the diagonal,
(3) repmat(M,2) to replicate the matrix
(4) fliplr(M) to flip the matrix
and many others to see how you can manipulate the matrices .

folks i hope u know there are certian limitations to HTML so bear with me with the output of the matrix representatin.

Nosheen

Joined: 02 Aug 2007
Posts: 37

04 Dec 2007 8:09 matlab tdma code .m file

hello,
its really nice and informative session..
dear i need help about axis setting in MATLAB. e.g how to cater for high frequencies on x-axis and the amplitudes on y-axis...
also the FFT plot in MATLAB ranges from -Fs/2 to Fs/2, can i plot the FFT from 0(zero) to higher multiples of the Sampling Frequency???

plzzzz help me out...
regards

hyper145

Joined: 27 Nov 2007
Posts: 9

05 Dec 2007 0:55 matlab programing of ofdm

Hi Nosheen thank you for the question, you can find the answer to question is in this link,

http://www.mathworks.com/access/helpdesk/help/techdoc/index.html?/access/helpdesk/help/techdoc/ref/fft.html&http://www.mathworks.com/cgi-bin/texis/webinator/search/

if u don't understand it let me know and i will walk you through

Shwan

Joined: 26 Nov 2007
Posts: 13
Location: UK

17 Dec 2007 16:44 how to make a pole zero plot in matlab

Hi Hyper 145,
Very thanks for your explenation was interesting, so therefore, I would like to help me to write a program for multipath channel using OFDM with QPSK or QAM modulation technique.
Thanks
shwan

rag_perfect

Joined: 01 Sep 2005
Posts: 150
Helped: 7
Location: India

19 Dec 2007 7:47 quantization matlab ofdm

it wolud be much better if we discuss simulink basics simultaniously here....

buldozer26

Joined: 19 Dec 2007
Posts: 4

20 Dec 2007 8:43 quantization matlab in ofdm

Thanks for you class, it's really useful. Could you please help me on how to do chip mapping using simulink? Take care!

angu

Joined: 05 Nov 2007
Posts: 59
Helped: 4

21 Dec 2007 14:54 matlab sequential decoder

hi hyper145

i am doing my m.e. I want to join ur class.

vandelay

Joined: 16 Aug 2007
Posts: 122
Helped: 2
Location: Norway

21 Dec 2007 17:10 synchronization in ofdm systems required reading

Hi folks,
Electrical Engineering student here. Have used MATLAB/Simulink for 2 years in numerous courses ranging from various levels of cybernetics to digital signal processing, etc. I'll be watching the discussion throwing in my 2 cents once in a while Wink

BTW I also have experience with SLPS (SimuLink PSpice, Electrical OrCAD blocks cosimulated within Simulink). Neat for simulating analog control blocks as part of a control system..

topse2008

Joined: 22 Dec 2007
Posts: 8

22 Dec 2007 10:55 noise in cannal matlab

Hi all I am posting one study material for quickly learning matlab. hope it will be useful for you all.

Sorry, but you need login in to view this attachment

babyeric

Joined: 21 Dec 2007
Posts: 14

02 Jan 2008 9:57 matlab simulink repmat

I would like to learn as well..I am doing digital communication. Currently i am simulating a basic digital communication QPSK modulated signal with coding. I have problem with various coding and unable to get the desired output. My simulation required me to add a concatenated reed solomon as the outer coding and convolutional with viterbi decoding as the inner coding. I do not know whether I had done correctly or not. However I could not get the desired output I want.

I do not know whether is it my noise scaling had gone wrong or which part of my simulation code had gone wrong..Hope you can help. I can send u my source code. So that u can advise more better with it.

Hope to see your reply.

linkfox

Joined: 18 Dec 2007
Posts: 52
Helped: 3

08 Jan 2008 2:32 sum up matlab

topse2008 wrote:

Hi all I am posting one study material for quickly learning matlab. hope it will be useful for you all.

Thanks, some of the commands are really helpful

suhanya

Joined: 08 Jan 2008
Posts: 10

08 Jan 2008 9:26 x = sigx * randn

Hi,
I am new to MATLAB as well. My project requires me to simulate performance of Wireless Mesh Network using Smart Antenna.
I am quite new to both the topic and also MATLAB. Is there any library tools provided in MATLAB for this form of simulation?
Any help would would be appreciated.
I am eager to start, but lost as to where to start.

cuongtran

Joined: 06 Feb 2007
Posts: 182
Helped: 4
Location: WhiteHouse

08 Jan 2008 15:19 32 qam matlab download

nice topic, sorry hyper for the late but I will follow your lecture, I have some solide base of matlab.

Angel_s

Joined: 22 Dec 2008
Posts: 6

18 Feb 2009 17:02 matlab calculate heart beat

HI...I am doing my degree project on Sequential decoding...
Can any1 plz help me to write the Matlab codes?
actually i do understand the steps involved but i don't know Matlab..
1.generate PRBS
2.encode using convolutional encoder
3.add noise
4.sequential decoder
5.decode sequentially(hard decision-trees)
6.compare encoded bits and decoded bits
7.count number of errors
8.compute the probability of errors(BER)

please help me asap...

thanks loads...

Ana-Maria

Joined: 22 Apr 2007
Posts: 55

18 Feb 2009 19:21 matlab sequential gaussin

Hi, I'm really interested about this course. Great idea.
I'm a PhD student.

Communications_Engineer

Joined: 10 Oct 2008
Posts: 492
Helped: 39

19 Feb 2009 16:57 matlab+gaussian

I hope you'd skip the basic and move towards things that are more serious. I think every one over here is atleast good at basic Matlab, you know PhD students, ME students.

Please tell me when you start OFDM and convolutional coding in Matlab, I have some question regarding that. Also looking forward to you starting sessions of Simulink especially handling port delays

I may also share my knowledge over here, regarding Matlab and Simulink for communication systems simulation

faisalobaid

Joined: 17 Feb 2009
Posts: 5

20 Feb 2009 6:11 matlab-left-msb

i am m.e student and shall be an eager student here as well

ronaknr

Joined: 25 Feb 2009
Posts: 11

25 Feb 2009 22:08 egt/mrc matlab fig

Can we work on WiMAX Handover in Matlab? I am new to Matlab. I want to do my MS thesis on wimax handover.

sathish2610

Joined: 02 Feb 2009
Posts: 19

26 Feb 2009 5:06 gaussian differential equation in matlab

i am doing my degree project.....
as i am proceding i had the following problems.....
can any one help me in solving the problem...
i give up advance thanks to them...

1)i need the coding to generate 128 qam signal and also sampling of 128 qam signal

2)how to covert 128 qam to 16 qam and vice versa using matlab lab coding...

please help me in order to complete the project.....