Whats the difference of Weights WeightInputs in lineareq object?

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Steffen Mauch 2018-5-6

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回答： Gael Goron 2018-5-15

Hello,

can someone help me and explain whats the difference between 'Weights' and 'WeightInputs' in lineareq object? https://de.mathworks.com/help/comm/ref/lineareq.html

I want to extract the coefficients of a feed-forward equalizer such that I can implement it as a FIR in C-Code.

Thanks.

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Answer 1

Gael Goron 2018-5-15

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Hello,

'Weights' is the tap weights vector (complex numbers), often noted as w, whereas 'WeightInputs' is the tap input vector, often noted as u. Such that the current output of the filter is

y=w'*u;

where ' denotes the hermitian transpose. You can see these notations used in table 2.1 in the preview of this textbook for instance.