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Why "rate random walk" exists on gyroscpe ?

  1. Jan 26, 2015 #1
    I read an article about stochastic error modeling, and I didn't understand this extract about error sources :
    how can the "rate random walk" be present, while the gyroscope directely angular rate ?
    the article's title is : "Stochastic Modeling of MEMS Inertial Sensors " by Petko Petkov and Tsonyo Slavov
  2. jcsd
  3. Jan 26, 2015 #2


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    Staff: Mentor

    Some external influences can exert a torque on the system. It could also be related to your measurement which will have some noise.
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