5dbc48abc0
Current work is on MLSE and SD Decoding etc. MLSE is currently not 100% working, the scalings are maybe off?!
26 lines
786 B
Matlab
26 lines
786 B
Matlab
function Scpe_sig = preprocessSignal(Scpe_sig, Symbols, fsym)
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% PREPROCESSSIGNAL Performs standard preprocessing on a signal
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%
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% Inputs:
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% Scpe_sig - Input signal
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% Symbols - Reference symbols for synchronization
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% fsym - Symbol frequency
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%
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% Outputs:
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% Scpe_sig - Preprocessed signal
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% Resample to 2x symbol rate
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Scpe_sig = Scpe_sig.resample("fs_out", 2*fsym);
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% Synchronize with reference
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[Scpe_sig, ~] = Scpe_sig.tsynch("reference", Symbols, "fs_ref", fsym, "debug_plots", 0);
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% Apply Gaussian filter
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% Scpe_sig = Filter('filtdegree', 4, "f_cutoff", Symbols.fs.*0.6, ...
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% "fs", Scpe_sig.fs, "filterType", filtertypes.gaussian, ...
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% "active", true).process(Scpe_sig);
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% Remove DC offset
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Scpe_sig = Scpe_sig - mean(Scpe_sig.signal);
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end |