Probability distributions

Discussion in 'Wireless & RF Design' started by saraswathi.95, Apr 7, 2014.

  1. saraswathi.95

    Thread Starter Member

    Apr 11, 2013
    40
    0
    Hello,
    We do have so many distributive functions related to estimation of noise or to find signal occurance in RADARS ,how to choose appropriate distribution function.
     
  2. saraswathi.95

    Thread Starter Member

    Apr 11, 2013
    40
    0
    Am i not clear about my question? If no please try to answer it quickly.
     
  3. dougc314

    Member

    Dec 20, 2013
    38
    11
    Well, actually you aren't too clear. This is kind of one of the first things to be learned in the technical study of Radar, I would expect anybody thinking of this to already have seen it.

    However, just to get you going (admittedly I am primarily self taught on this topic, so perhaps thats what you're doing)...Usually the noise at the RX antenna, or generated by any thermal process is considered to be Gaussian. After detection (absolute magnitude function, rectifying, or calculating its magnitude, take your pick) a Gaussian distribution has a Rayliegh distribution.
    this link http://www.acfr.usyd.edu.au/pdfs/training/sensorSystems/10 Detection of Signals in Noise.pdf
    will get you started.
     
  4. Papabravo

    Expert

    Feb 24, 2006
    10,148
    1,791
    It is not a matter of choosing. You don't get to pick the statistical properties of the thing you are studying!! You study the natural phenomena and you see if a particular distribution function allows you to predict or explain the phenomena in question.
     
  5. Melvin789

    New Member

    Jun 21, 2014
    3
    0
    The question is complicated and yet not cleared. What you are asking about the radar or some distribution of its functions.
     
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