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rahma1920
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Registered: ‎01-06-2019

Implementation of an activation function using system generator

Hi,

I made this design of the activation function (sigmoid:f(x)=1/(1+exp(-x)) (capture3)

But scope displays a saturated curve instead of the positive part of the sigmoid(capture5)

I don't know where exactly the problem, if in the mathematical expression to specify the contents of the ROM(capture4)

Or in the representation of data in fixed point.

thanks in advance!

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rahma1920
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Registered: ‎01-06-2019

these are capture3, capture5, capture4

Capture3.PNG
Capture5.PNG
Capture4.PNG
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