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Recent content by ufochina

  1. U

    system for measurein phase change at one frequency in S band

    Describe a system for measuring phase changes at one frequency in S band with a dynamic range of 100 dB. The desired accuracy for this system is 0.5. Elaborate on what you think are the major problems. Is there anyone can help me on this question/ Thanks!
  2. U

    Numerical Analysis question

    Given: Concentration = (ep-el) / (ep-em) * (em/el)1/3 * 100 where “ep ” and “em” are constants. Write a “C” program to determine “el” for concentrations 0 to 100 step 10。 It is more like using numerical anasis, any one can help me on that? Thanks!
  3. U

    quesion on C program by using numerical analysis

    Given: Concentration = (ep-el) / (ep-em) * (em/el)1/3 * 100 where “ep ” and “em” are constants. Write a “C” program to determine “el” for concentrations 0 to 100 step 10。 Thanks!
  4. U

    Transmission means in terms of the frequency response

    To Pancho, Thanks a lot! For the other two have sa TEM mode, are there frequency response is exactly same, or different due to the different shape? Thanks!
  5. U

    Transmission means in terms of the frequency response

    does someone know what is the difference between the three transmission means in terms of the frequency response, from zero to infinity?
  6. U

    ways to improve the time performance of C programming?

    To MicroKernel, Thanks! there is one question about design a system, maybe you can help me on that, the question is: Describe a system for measuring phase changes at one frequency in S band with a dynamic range of 100 dB. The desired accuracy for this system is 0.5. Elaborate on...
  7. U

    ways to improve the time performance of C programming?

    To Stefaan, thanks. It is a floating point, but could you give me detail about the format on how to storing a floating point in two 16 bit words?
  8. U

    Format for storing a floating point in two 16 bit words?

    any one can help me on this? Thanks!
  9. U

    ways to improve the time performance of C programming?

    Thanks, but is there any extra ways? Another question is: Is there any format for storing a floating point in two 16 bit word?
  10. U

    ways to improve the time performance of C programming?

    List ways to improve the time performance of a critical portion of C programming language?
  11. U

    Describe a system for measuring phase changes at one frequen

    Describe a system for measuring phase changes at one frequency in S band with a dynamic range of 100 dB. The desired accuracy for this system is 0.5. Elaborate on what you think are the major problems. Also there are some other Analog quesions I nees help. Thanks!
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