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Recent content by y.ettefagh

  1. Y

    GSM BCCH transmission

    Hi, I will be thankful if someone answers me... As we know, in GSM, BCCH is transmitted on first carrier (BCCH carrier) first time slot (time slot 0) and in order to have the maximum coverage, BTS must transmit BCCH on this time slot with maximum power. Also there is no power control on BCCH...
  2. Y

    BCCH carrier power saving

    Hi, I will be thankful if someone answers me... As we know, in GSM, BCCH is transmitted on first carrier (BCCH carrier) first time slot (time slot 0) and in order to have the maximum coverage, BTS must transmit BCCH on this time slot with maximum power. Also there is no power control on BCCH...
  3. Y

    frequency range setting in CST

    Hello again... I have another very simple and primary question and hope to be solved easily as the previous one. im working with CST2011 and in extracting port signals i cant select all of them and i have to extract them one by one. i think once i extract all of them in one single txt file but...
  4. Y

    Trouble with loading text files into matlab

    Hi! i have trouble in loading huge text files into matlab, it's very tedious and takes a lot of time and i have to load lots of text files into matlab and the format is ASCII. i know that i can reduce the volume of my files by changing the format of the file into binary or other formats using c...
  5. Y

    frequency range setting in CST

    Thank you so much, completely solved :)
  6. Y

    frequency range setting in CST

    Thank you so much, i used parameter sweep and the subsequent models are running but i can not find where the port signals of my two models are saved...? actually i need the port signals but after the parameter sweep, the whole 1D results vanish and i just can see materials!
  7. Y

    frequency range setting in CST

    Thank you so much, here is my problem: I want to insert a small brick in a bigger different brick then change the location of the smaller brick with specified epsilon in that bigger brick over than 200 times. how can i do this by using variables? Thanks so much
  8. Y

    frequency range setting in CST

    Thanks for your reply. Actually i need to run CST over 200 times to get the data i want and in each time i want to change the location of a specific component. It is very hard for me to change thelocation manually more than 200 times so it would be ideal for me if i could write a code to do this...
  9. Y

    frequency range setting in CST

    thanks for your attention, my problem is solved fortunately :) now i have another question and i would appreciate it if you answer me. i need to run CST for many times and in each time, change the location of a solid component. can anyone tell me how to control CST? for example by linking it...
  10. Y

    frequency range setting in CST

    Hi everyone! I would appreciate it if you guys can help me out... I'm new to CST and i'm having a problem in setting my desired frequency bandwidth of the input signal. I want the excitation signal to be a gaussian modulated signal (actually the default excitation) within the bandwidth of 25 ghz...
  11. Y

    Problem with linking between Matlab, CST and applying Genetic Algorithm(GA)

    Hi trinhvanson. thanks for your attention i used the syntax winopen to open my cst model, as far as i undrestood the commands: "cst = actxserver('CSTStudio.application'); mws = invoke(cst, 'NewMWS'); " cant open a pre-defined model. so how can i define 'mws' as you said? thank you kindly
  12. Y

    Problem with linking between Matlab, CST and applying Genetic Algorithm(GA)

    Hi everyone I hope someone can help me cause i really need help now! i need to run cst for about 200 times and i have to change some parameters each time. i've designed the model and im having problem with changing parameters in matlab as far as i know we can define bricks... and form a new...
  13. Y

    sample an unknown signal in matlab

    Hi everyone, I hope to be helped as soon as possible... I'd like to sample a signal in matlab which i dont know the time domain formula... i know the frequency domain one and i used ifft to obtain the time domain and i am chasing for a command which gives me sampled signal in my desired sampling...
  14. Y

    bandpass modulation matlab code

    ok , can u give me the code ?!
  15. Y

    bandpass modulation matlab code

    hello , I 'm supposed to write a matlab code for QAM modulation and demodulation ... and especially in demodulation part I have to include carrier and time synchronization part ... I know the theory but I dont know how to write the code and the main purpose is implementing on fpga ... can anyone...
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