How quantization is impletemented in matlab ( by quantization i mean either the conversion from floating point format to fixed point or the conversion from fixedpoint q-format to an other fixed point format)

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abraham 2017-4-30

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编辑： Andy Bartlett 2022-8-2

Is there a function floating To fixed point conversion in matlab and how it works ?

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Answer 1

Andy Bartlett 2022-8-2

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编辑：Andy Bartlett 2022-8-2

在 MATLAB Online 中打开

Yes, Fixed-Point Designer product makes it easy to handle fixed-point in MATLAB and Simulink.

will make it easy to handle fixed-point types.

Please, see this other post that discusses in more detail.

Here is a MATLAB example of converting to fixed-point and then back to double precision floating.

format long g
vOriginal = pi
vOriginal = 
          3.14159265358979
vFi = fi(vOriginal,1,16,8)
vFi = 
                  3.140625

          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Signed
            WordLength: 16
        FractionLength: 8
vRoundTrip = double(vFi)
vRoundTrip = 
                  3.140625