152 lines
4.0 KiB
Matlab
152 lines
4.0 KiB
Matlab
classdef Signal
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%SIGNAL Summary of this class goes here
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% Detailed explanation goes here
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properties
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signal
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logbook
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end
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methods
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function obj = Signal(signal)
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%SIGNAL Construct an instance of this class
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% Detailed explanation goes here
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obj.signal = signal;
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SignalType = [];
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TimeStamp = [];
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Length = [];
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SignalPower = [];
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Nase = [];
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Description = [];
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obj.logbook = table(SignalType,TimeStamp,Length,SignalPower,Nase,Description);
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end
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function [i_sig, varargout] = Informationsignal(obj)
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if isa(obj,'Electricalsignal')
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%convert to optical
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varargout{1} = obj.fs;
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i_sig = Informationsignal(obj.signal);
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elseif isa(obj,'Opticalsignal')
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error("Cannot convert from optical- to informationsignal. Use O/E conversion first.");
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end
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end
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function [e_sig, varargout] = Electricalsignal(obj,options)
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arguments
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obj
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options.fs
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options.logbook
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end
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obj.logbook = options.logbook;
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if isa(obj,'Opticalsignal')
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%convert to electrical
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varargout{1} = obj.nase;
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varargout{2} = obj.lambda;
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e_sig = Electricalsignal(obj.signal,"fs",obj.fs,"logbook",obj.logbook);
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elseif isa(obj,'Informationsignal')
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try
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% specify fs at varargin{1}
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e_sig = Electricalsignal(obj.signal,"fs",options.fs,"logbook",options.logbook);
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catch
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error("Signal Conversion failed [I -> E] ");
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end
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end
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end
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function o_sig = Opticalsignal(obj, options)
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arguments
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obj
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options.fs
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options.logbook
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options.nase
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options.lambda
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end
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fn = fieldnames(options);
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for l = 1:numel(fn)
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try
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obj.(fn{l}) = options.(fn{l});
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end
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end
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if isa(obj,'Electricalsignal')
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%convert to optical
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o_sig = Opticalsignal(obj.signal,"fs",obj.fs,"lambda",options.lambda,"logbook",obj.logbook,"nase",options.nase);
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elseif isa(obj,'Informationsignal')
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error("Cannot convert from information- to opticalsignal. Use E/O conversion first.");
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end
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end
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function return_length = length(obj)
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%METHOD1 Summary of this method goes here
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% Detailed explanation goes here
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return_length = length(obj.signal);
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end
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function obj = logbookentry(obj,varargin)
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if nargin > 1
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Description = varargin{1};
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else
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Description = "";
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end
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SignalType = [string(class(obj))];
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TimeStamp = [(datetime('now','TimeZone','local','Format','HH:mm:ss'))];
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Length = [obj.length];
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SignalPower = [obj.power];
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Nase = [0];
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cell = {SignalType , TimeStamp , Length , SignalPower , Nase, Description};
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obj.logbook = [obj.logbook;cell];
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end
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function obj = resample(obj,options)
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arguments
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obj Signal
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options.fs_in double
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options.fs_out double
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end
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obj.signal = resample(obj.signal,options.fs_out,options.fs_in);
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desc = ['resample signal from ', num2str(options.fs_in*1e-9), ' GHz to ', num2str(options.fs_out*1e-9), ' GHz' ];
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obj = obj.logbookentry(desc);
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end
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end
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end
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