<< Equalization Equalization equalizer_process >>

comm_tbx >> Equalization > equalizer_init

equalizer_init

Creation of an equalizer object (LMS, CMA, ...)

Calling Sequence

eq = equalizer_init(wf); // Default equalizer (DDE, K = 1)
eq = equalizer_init(wf,K,errf,struct,gain,N1[,N2]]);

Parameters

wf:

Waveform specification (see wf_init)

K:

Input over-sampling ratio (number of samples per symbol)

errf:

Error function (either 'slicer' or 'cma')

struct:

Equalizer structure (either 'dde' or 'dfe')

gain:

Update gain (determine the convergence speed)

N1:

Number of taps of the direct FIR equalization filter

N2:

Number of taps of the feedback FIR equalization filter (only for DFE equalization)

eq:

Resulting equalizer object (can be used with equalizer_process)

Description

Initialize an equalizer object, ever symbol sampled (K = 1), or fractionnaly sampled (K > 1). Supported equalization structures are the following:

Possible cost function are the following:

For a complete example, see the equalizer_process function.

See also

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