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Recent content by navid1314

  1. N

    Help me finding electronic parts reliability data.

    Can anybody help me, finding manual or document or anything else about MTBF or Failure rate data of electronic parts.
  2. N

    What is the maximum speed the mobile user can move?

    It's specially depends on cell size. In highways we need large cells to reduce handovers
  3. N

    In the GSM network, how many channel found in one cell? on w

    Re: In the GSM network, how many channel found in one cell? mail me on naviduga@gmail.com for tech report.
  4. N

    In the GSM network, how many channel found in one cell? on w

    how many channels are there in gsm it depends on many things: how many carriers (channel) the provider have? the frequency reuse scheme the provider uses? acctually, we have 124 accessible carriers (channels) in "900 band" and 374 in "1800 band". each carrier contains 8 time slots ,some of...
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    ASK code for digital communication

    Re: Graduation Project how aboat the followings: -speaker identification -speech recognition -face detection
  6. N

    help needed in viterbi decoding

    thanks jimmy you explain better than me, what i've in mind.
  7. N

    What are the available antenna design tools for PCB or 868-915 Mhz bands?

    Re: Antenna design tools I recomand microwave office in planar simple projects.
  8. N

    What's the difference between PIC microcontroller and 8051 series?

    What is a PIC microcontroller, waht's the difference with 8051 series
  9. N

    What to do during holidays before telecommunication engineering semester 6?

    Re: what to do I highly recomand you to start learning matlab package
  10. N

    help needed in viterbi decoding

    Hi if the signal have memory of L, you can make a decision on a symbol after 5L, it means if L=7 and your buffer length is 64, you can only peak 29=64-5L symbols after doing the viterbi procedure on 64 symbols, then you shift them left and get in 29 new symbols from right.
  11. N

    In which field should I make senior project?

    Re: Any Idea Pattern recognition is a good field: -OCR -Speech recognition -Speaker recognition -Fingerprint recognition ......
  12. N

    Looking for parallel port programmer for PIC 16F84A

    Re: help pleaz!!!! I think,You need to program it through the serial port
  13. N

    DSP Applications Using C and the TMS320C6x DSK

    Re: Newbie in DSP I've start with Ifeachor's, It's almost parctical, need'nt konw anything else
  14. N

    help needed in viterbi decoding

    salam How many bits are corrupted? traceback length of 5 times the constraint length makes the error rate low enough, but the more traceback length , the less error bit rate bye navid
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    Which PCB tool is better for my needs?

    Re: Wich PCB Tool is better? i'm useing protel DXP,it's a nice tool,but it's not so simple to learn.
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