updates of framework
- focus on AWG output power and lowpass characteristics
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@@ -28,8 +28,10 @@ classdef Electricalsignal < Signal
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function pow = power(obj)
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pow = mean( abs(obj.signal).^2 ) ;
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pow = pow2db(pow)+30; %dbm
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% Power of an electrical signal
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R = 50;
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pow = mean(abs(obj.signal).^2) / R; % Power in watts = V^2 / R
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pow = 10*log10(pow) + 30; % Power in dB +30 = dBm
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end
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@@ -47,6 +49,66 @@ classdef Electricalsignal < Signal
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end
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function obj = normalize(obj,options)
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arguments
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obj Electricalsignal
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options.mode normalization_mode = normalization_mode.rms
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end
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switch options.mode
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case normalization_mode.milliwatt
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curpow = sqrt(mean(obj.signal.^2)/50); %watt
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tgtpow = sqrt(1e-3); %watt -> wir wollen milliwatt
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scling = tgtpow/curpow;
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obj.signal = obj.signal*scling;
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case normalization_mode.rms
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obj.signal = obj.signal / sqrt(mean(obj.signal.^2));
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case normalization_mode.oneone
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obj.signal = obj.signal - min(obj.signal);
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obj.signal = obj.signal/max(abs(obj.signal));
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obj.signal = (2*obj.signal) - 1;
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end
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end
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function obj = setPower(obj,outputpower, mode)
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arguments
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obj Electricalsignal
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outputpower
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mode power_notation
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end
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switch mode
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case power_notation.W
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case power_notation.mW
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outputpower_w = outputpower/1000; %mW to Watt
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case power_notation.dBm
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outputpower_w = 10^((outputpower-30)/10); % dBm to Watt
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case power_notation.dBW
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outputpower_w = 10^((outputpower)/10); % dBm to Watt
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end
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curpow = sqrt(mean(obj.signal.^2)/50); %watt mit 50 ohm ref
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tgtpow = sqrt(outputpower_w); %watt -> wir wollen milliwatt
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scling = tgtpow/curpow;
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obj.signal = obj.signal*scling;
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end
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end
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