|Dec7-12, 01:58 AM||#1|
High order joint moments calculation
Recently I have been working on classical Gaussian electrical field and I come through this joint
Suppose we got the joint density function as:
[itex]<I>,<s_i>,<s_j>,<s_k>[/itex] are the known mean of [itex]I,s_i,s_j,s_k[/itex].
the high order moment of [itex]<s_i^n>[/itex] can be calculated as:
with the above result, The paper I referred to give the following conclusion which I can't catch up with:
is given by multiplying [itex]<s_j>^2[/itex], in the square brackets in [itex] <s_i^n>[/itex]
Can anyone tell me why the author calculates the joint moments in that way.
Look forward to your reply
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