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Recent content by munna007

  1. M

    problem in matlab while opening image with it ????plz help

    hello friends....i save my picture named "manish.tiff" in matlab directory....then opening this with command named rgb =imread('manish.tiff') in command window....but it shows error..... below is the error i m getting. (??? Error using ==> imread File "manish.tiff" does not exist. ) ut when...
  2. M

    what could be the minimum frequency of digital signal ?

    hello friends....this was asked to me in an interview...plz tell me its answer....very thanksfull to u.......
  3. M

    plz help in this simulation of bpsk bit error rate

    when i try to connect display block with error calculator block then this red line appears instead of black....it shows that no connection between them....can u plz tell me how to conect them .... thanks ....
  4. M

    plz give me matlab code for Bit error versus SNR .

    i have a term paper on performance analysis of bit error rate and snr for bpsk and qpsk.....plz provide me the code.... i m ne in matlab and digital communication.... thanks
  5. M

    indirect band gap semiconductor doubt ....

    its said that indirect band gap semiconductors like silicon and germanium are not used as a light sources because they have more non-radiative recombinations rather than radiative ,which inturn decreases efficiency of optical source. but i want to understand how indirect band gap materials...
  6. M

    problem in transient anaysis question (RC).

    hello friends.... my problem is that ....how they calculated R equivalent=5/6 Kohms. will it be different for i ms and 4 ms.... they have shown R=25k for 4ms .... please clarify .... thanks....
  7. M

    in gsm900 the uplink frequency is lower than downlink, why?

    what is uplink and downlink frequency for bts thanks all of my brothers for replying........ but i hav studied in book..... that higher frequencies hav higher free space loss.....now uplink is frequency from mob to bts.....now our mobile has lower power capacity as compared to bts....so we...
  8. M

    in gsm900 the uplink frequency is lower than downlink, why?

    uplink frequency hello friends....i m getting confused about the answer of this question....i m hoping for some help here..........thanks...........

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